HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news

Cheap flights from Baltimore to St. Louis (BWI - STL) from $63

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 6/4. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
BWI — STL
May 6 — May 131
From?
To?
Mon 5/6
Mon 5/13
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

The best prices from Baltimore/Washington to Lambert-St Louis are usually found in April or January, booked 47 days in advance, depart on a Wednesday or Thursday and return on a Thursday

Cheap flight deals from Baltimore to St. Louis

Discover tips and strategies to find the most affordable flight options for your journey from Baltimore (BWI) to St. Louis (STL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated May 1, 2024.

Popular in

June

Cheapest in

April

Round-trip from

$322

One-way from

$133
High demand for flights, 26% potential price rise
Search Deals
Best time to find cheap flights, 15% potential price drop
Search Deals
From Baltimore/Washington to Lambert-St Louis
Search Deals
One-way flight from Baltimore/Washington to Lambert-St Louis
Search Deals

What is the cheapest day to fly round-trip from Baltimore to St. Louis?

Users have found that leaving on a Tuesday can be a cost-effective option. It’s possible to save up to 57% on your flight compared to booking on days when demand is much higher.

How far in advance should I book a flight from Baltimore to St. Louis?

To save on the cost of your flight from Baltimore to St. Louis, book at least 51 days before your planned departure. Booking around this time can save you about 87% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $391 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $462.

What is the cheapest month to fly from Baltimore to St. Louis?

February is one of the best times of the year to fly to St. Louis from Baltimore. Prices for February average $348 per person but you can even find prices for as low as $191. The most expensive prices can be found in the month of June. Opting for a February flight can save you 12% on your journey compared to booking in June

When is the cheapest time to fly from Baltimore to St. Louis (BWI - STL)?

One of the essential ways to save on airfare from Baltimore to St. Louis is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the evening could potentially save you up to 58% on airfare.

Cheap Spirit Airlines flights from Baltimore to St. Louis

Explore cheap flight options specifically provided by Spirit Airlines for the route between Baltimore and St. Louis. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,899,487 searches. Data last updated May 1, 2024.
Find some of the cheapest Spirit Airlines flights traveling from Baltimore to St. Louis. It's recommended that users confirm their flight details before booking.
Sun 5/196:14 amBWI - STL
1 stop13h 26mSpirit Airlines
Tue 5/2110:34 amSTL - BWI
1 stop12h 59mSpirit Airlines
Deal found 5/1$131
Wed 5/810:12 pmBWI - STL
2 stops21h 28mSpirit Airlines
Sat 5/115:15 pmSTL - BWI
1 stop6h 18mSpirit Airlines
Deal found 4/30$162
Tue 5/146:14 amBWI - STL
1 stop8h 23mSpirit Airlines
Fri 5/174:05 pmSTL - BWI
2 stops30h 40mSpirit Airlines
Deal found 4/30$185
Tue 5/219:34 amBWI - STL
2 stops26h 12mSpirit Airlines
Thu 5/306:19 pmSTL - BWI
1 stop13h 23mSpirit Airlines
Deal found 4/30$187
Fri 5/2410:12 pmBWI - STL
1 stop19h 13mSpirit Airlines
Tue 5/282:35 pmSTL - BWI
1 stop16h 40mSpirit Airlines
Deal found 5/1$191
Mon 5/207:43 pmBWI - STL
1 stop14h 56mSpirit Airlines
Wed 5/2211:36 amSTL - BWI
2 stops27h 59mSpirit Airlines
Deal found 5/1$195
Fri 5/2410:12 pmBWI - STL
1 stop19h 13mSpirit Airlines
Sun 5/266:19 pmSTL - BWI
1 stop13h 23mSpirit Airlines
Deal found 4/30$199
Thu 5/2310:40 amBWI - STL
1 stop9h 00mSpirit Airlines
Thu 5/307:30 pmSTL - BWI
1 stop23h 50mSpirit Airlines
Deal found 5/1$201
Tue 6/46:14 amBWI - STL
1 stop8h 23mSpirit Airlines
Wed 6/51:55 pmSTL - BWI
2 stops25h 36mSpirit Airlines
Deal found 5/1$207

Cheap Frontier flights from Baltimore to St. Louis

Explore cheap flight options specifically provided by Frontier for the route between Baltimore and St. Louis. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,899,487 searches. Data last updated May 1, 2024.
To aid your search, here are some of the cheapest Frontier flights we've found from Baltimore to St. Louis. Check back soon if you're not seeing flights that suit your needs.
Wed 5/228:42 pmBWI - STL
1 stop26h 24mFrontier
Wed 5/299:10 pmSTL - BWI
1 stop13h 48mFrontier
Deal found 4/30$143
Sat 5/119:00 pmBWI - STL
1 stop11h 13mFrontier
Tue 5/147:16 pmSTL - BWI
1 stop18h 40mFrontier
Deal found 5/1$144
Tue 6/48:28 pmBWI - STL
1 stop11h 54mFrontier
Thu 6/67:44 pmSTL - BWI
1 stop11h 03mFrontier
Deal found 5/1$147
Sat 5/119:00 pmBWI - STL
1 stop11h 13mFrontier
Tue 5/147:16 pmSTL - BWI
1 stop18h 40mFrontier
Deal found 4/30$150
Wed 5/812:29 pmBWI - STL
1 stop23h 09mFrontier
Thu 5/97:16 pmSTL - BWI
1 stop11h 02mFrontier
Deal found 5/1$153
Sat 5/119:00 pmBWI - STL
1 stop11h 13mFrontier
Tue 5/144:50 pmSTL - BWI
1 stop17h 39mFrontier
Deal found 4/30$154
Sat 5/119:00 pmBWI - STL
1 stop11h 13mFrontier
Tue 5/144:50 pmSTL - BWI
2 stops21h 26mFrontier
Deal found 4/30$156
Mon 5/138:08 amBWI - STL
1 stop13h 03mFrontier
Tue 5/144:50 pmSTL - BWI
1 stop17h 39mFrontier
Deal found 5/1$159
Mon 5/131:00 pmBWI - STL
1 stop27h 50mFrontier
Thu 5/167:44 pmSTL - BWI
1 stop11h 28mFrontier
Deal found 5/1$163

Cheap Baltimore to St. Louis flights in May & June 2024

Find cheap flight options from Baltimore to St. Louis specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,899,487 searches. Prices were last updated on May 1, 2024.
The lowest fares we've come across on flights traveling from Baltimore to St. Louis in May and June 2024. If these deals don't appeal to you, be sure to come back soon for more options.
Sun 5/196:14 amBWI - STL
1 stop13h 26mSpirit Airlines
Tue 5/2110:34 amSTL - BWI
1 stop12h 59mSpirit Airlines
Deal found 5/1$131
Sat 5/119:00 pmBWI - STL
1 stop11h 13mFrontier
Wed 5/155:56 pmSTL - BWI
1 stop14h 04mFrontier
Deal found 5/1$139
Sat 5/119:00 pmBWI - STL
1 stop11h 13mFrontier
Tue 5/147:16 pmSTL - BWI
1 stop18h 40mFrontier
Deal found 5/1$144
Wed 5/812:29 pmBWI - STL
1 stop23h 09mFrontier
Tue 5/144:50 pmSTL - BWI
2 stops21h 26mFrontier
Deal found 5/1$148
Wed 5/812:29 pmBWI - STL
1 stop23h 09mFrontier
Thu 5/97:16 pmSTL - BWI
1 stop11h 02mFrontier
Deal found 5/1$153
Sat 5/119:00 pmBWI - STL
1 stop11h 13mFrontier
Thu 5/167:44 pmSTL - BWI
1 stop11h 28mFrontier
Deal found 5/1$154
Sat 5/258:41 pmBWI - STL
1 stop11h 27mFrontier
Sun 5/2611:22 pmSTL - BWI
1 stop11h 11mFrontier
Deal found 5/1$157
Mon 5/138:08 amBWI - STL
1 stop13h 03mFrontier
Tue 5/144:50 pmSTL - BWI
1 stop17h 39mFrontier
Deal found 5/1$159
Mon 5/131:00 pmBWI - STL
1 stop27h 50mFrontier
Thu 5/167:44 pmSTL - BWI
1 stop11h 28mFrontier
Deal found 5/1$163

Baltimore to St. Louis 2024 flight deals

Discover exclusive flight deals for travel between Baltimore and St. Louis in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,899,487 searches. Data last updated May 1, 2024.
The lowest fares we've come across on flights traveling from Baltimore to St. Louis in May and June 2024. If these deals don't appeal to you, be sure to come back soon for more options.
Sun 5/196:14 amBWI - STL
1 stop13h 26mSpirit Airlines
Tue 5/2110:34 amSTL - BWI
1 stop12h 59mSpirit Airlines
Deal found 5/1$131
Sat 5/119:00 pmBWI - STL
1 stop11h 13mFrontier
Wed 5/155:56 pmSTL - BWI
1 stop14h 04mFrontier
Deal found 5/1$139
Sat 5/119:00 pmBWI - STL
1 stop11h 13mFrontier
Tue 5/147:16 pmSTL - BWI
1 stop18h 40mFrontier
Deal found 5/1$144
Tue 6/48:28 pmBWI - STL
1 stop11h 54mFrontier
Thu 6/67:44 pmSTL - BWI
1 stop11h 03mFrontier
Deal found 5/1$147
Wed 5/812:29 pmBWI - STL
1 stop23h 09mFrontier
Tue 5/144:50 pmSTL - BWI
2 stops21h 26mFrontier
Deal found 5/1$148
Thu 9/263:25 pmBWI - STL
1 stop16h 37mFrontier
Sun 9/296:42 pmSTL - BWI
1 stop25h 03mFrontier
Deal found 5/1$152
Wed 5/812:29 pmBWI - STL
1 stop23h 09mFrontier
Thu 5/97:16 pmSTL - BWI
1 stop11h 02mFrontier
Deal found 5/1$153
Sat 5/119:00 pmBWI - STL
1 stop11h 13mFrontier
Thu 5/167:44 pmSTL - BWI
1 stop11h 28mFrontier
Deal found 5/1$154
Sat 5/258:41 pmBWI - STL
1 stop11h 27mFrontier
Sun 5/2611:22 pmSTL - BWI
1 stop11h 11mFrontier
Deal found 5/1$157

Baltimore to St. Louis flights leaving soon

Find last-minute flight options from Baltimore to St. Louis for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 2,899,487 searches. Data last updated May 1, 2024.
Consider one of these great deals we found on last-minute flights from Baltimore to St. Louis. Users should examine the flight details to ensure there are no surprises.
Sat 5/119:00 pmBWI - STL
1 stop11h 13mFrontier
Tue 5/147:16 pmSTL - BWI
1 stop18h 40mFrontier
Deal found 5/1$144
Sat 5/119:00 pmBWI - STL
1 stop11h 13mFrontier
Tue 5/147:16 pmSTL - BWI
1 stop18h 40mFrontier
Deal found 4/30$150
Wed 5/812:29 pmBWI - STL
1 stop23h 09mFrontier
Thu 5/97:16 pmSTL - BWI
1 stop11h 02mFrontier
Deal found 5/1$153
Sat 5/119:00 pmBWI - STL
1 stop11h 13mFrontier
Tue 5/144:50 pmSTL - BWI
1 stop17h 39mFrontier
Deal found 4/30$154
Sat 5/119:00 pmBWI - STL
1 stop11h 13mFrontier
Tue 5/144:50 pmSTL - BWI
2 stops21h 26mFrontier
Deal found 4/30$156
Wed 5/810:12 pmBWI - STL
2 stops21h 28mSpirit Airlines
Sat 5/115:15 pmSTL - BWI
1 stop6h 18mSpirit Airlines
Deal found 4/30$162
Wed 5/812:29 pmBWI - STL
1 stop23h 09mFrontier
Tue 5/144:50 pmSTL - BWI
2 stops21h 26mFrontier
Deal found 4/30$170
Sat 5/119:00 pmBWI - STL
1 stop11h 13mMultiple Airlines
Sat 5/1811:39 amSTL - BWI
1 stop6h 03mMultiple Airlines
Deal found 4/30$172
Fri 5/108:50 pmBWI - STL
1 stop19h 47mFrontier
Wed 5/155:56 pmSTL - BWI
1 stop26h 04mFrontier
Deal found 4/30$183

One-way flights to St. Louis from Baltimore

Search for one-way flight options from Baltimore to St. Louis. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 2,899,487 searches. Data last updated May 1, 2024.
Users traveling one-way from Baltimore to St. Louis can select one of these great deals. Those needing a return flight from Baltimore to St. Louis can use the search form above.
Tue 6/46:14 amBWI - STL
1 stop8h 23mSpirit Airlines
Deal found 4/30$63
Sat 5/119:00 pmBWI - STL
1 stop11h 13mFrontier
Deal found 4/29$76
Tue 5/79:17 pmBWI - STL
1 stop24h 36mFrontier
Deal found 4/30$80
Thu 5/1610:00 pmBWI - STL
1 stop10h 08mFrontier
Deal found 4/30$81
Thu 6/68:13 pmBWI - STL
1 stop11h 55mFrontier
Deal found 4/30$83
Wed 5/812:29 pmBWI - STL
1 stop23h 09mFrontier
Deal found 5/1$85
Mon 5/208:38 amBWI - STL
1 stop23h 30mFrontier
Deal found 4/30$86
Sun 6/210:40 amBWI - STL
1 stop9h 00mSpirit Airlines
Deal found 5/1$91
Wed 5/1510:12 pmBWI - STL
2 stops21h 28mSpirit Airlines
Deal found 5/1$95

Find flights from Baltimore to St. Louis within your budget

Customize your flight search to find flights from Baltimore to St. Louis that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,899,487 searches. Data last updated May 1, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$125 - $341

Route

Depart

Return

Price

Baltimore/WashingtonLambert-St Louis

BWI - STL

BWISTL

Baltimore/Washington

Tue 5/14

1 stop8h 23m

Lambert-St Louis

Fri 5/17

1 stop16h 53m

$125

Baltimore/WashingtonLambert-St Louis

BWI - STL

BWISTL

Baltimore/Washington

Sun 5/19

1 stop13h 26m

Lambert-St Louis

Tue 5/21

1 stop12h 59m

$131

Baltimore/WashingtonLambert-St Louis

BWI - STL

BWISTL

Baltimore/Washington

Wed 5/22

1 stop26h 24m

Lambert-St Louis

Wed 5/29

1 stop13h 48m

$143

Baltimore/WashingtonLambert-St Louis

BWI - STL

BWISTL

Baltimore/Washington

Sat 5/11

1 stop11h 13m

Lambert-St Louis

Tue 5/14

1 stop18h 40m

$144

Baltimore/WashingtonLambert-St Louis

BWI - STL

BWISTL

Baltimore/Washington

Tue 6/4

1 stop11h 54m

Lambert-St Louis

Thu 6/6

1 stop11h 03m

$147

Baltimore/WashingtonLambert-St Louis

BWI - STL

BWISTL

Baltimore/Washington

Wed 6/5

1 stop23h 47m

Lambert-St Louis

Sat 6/8

1 stop21h 03m

$165

Baltimore/WashingtonLambert-St Louis

BWI - STL

BWISTL

Baltimore/Washington

Fri 7/12

1 stop5h 23m

Lambert-St Louis

Sun 7/14

1 stop15h 21m

$250

Baltimore/WashingtonLambert-St Louis

BWI - STL

BWISTL

Baltimore/Washington

Tue 7/2

1 stop5h 43m

Lambert-St Louis

Fri 7/5

1 stop7h 26m

$315

Baltimore/WashingtonLambert-St Louis

BWI - STL

BWISTL

Baltimore/Washington

Fri 6/28

1 stop4h 42m

Lambert-St Louis

Sun 6/30

1 stop6h 57m

$341

Flights are sorted by cheapest first

Deals found on 4/30

When is the best time to book a flight from Baltimore to St. Louis?

Use this chart to determine the optimal time to book a round-trip flight from Baltimore to St. Louis. Price data was last updated on January 28, 2024.
To ensure you get the cheapest price possible for a flight from Baltimore to St. Louis, you should look to book at least 37 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
Search Deals

When is the cheapest time to fly from Baltimore to St. Louis?

Use this chart to determine the cheapest time to fly round-trip from Baltimore to St. Louis. Price data was last updated on April 28, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their Baltimore to St. Louis flight should consider departing on Wednesday evenings when fares are most often at their lowest. Saturday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

Average price of flights to St. Louis by month

Plan your trip from Baltimore to St. Louis by taking into account the cheapest months to travel. The average price of a one-way flight from Baltimore to St. Louis is currently $82 while a round-trip flight costs $196. Price data was last updated on April 28, 2024.

Currently, September is the cheapest month in which you can book a flight from Baltimore to St. Louis (average of $322). Flying from Baltimore to St. Louis in July is currently the most expensive (average of $377). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

January

$326

February

$331

March

$357

April

$337

May

$345

June

$371

July

$377

August

$336

September

$322

October

$324

November

$336

December

$326

Temperature and rainfall in St. Louis by month

Plan your trip to St. Louis by taking into account the average temperature and rainfall totals by month.

STL

Temperature

32 - 80.6 °F

Reviews of airlines servicing St. Louis

Get insights into the airlines that provide service to St. Louis. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to St. Louis. Reviews last updated May 1, 2024.
See what other customers who have flown with Spirit Airlines, Frontier and Delta from Baltimore to St. Louis have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.1
Very good
10,874 reviews
Check prices

Crew

8.6

Comfort

7.9

Food

7.4

Overall

8.1

Boarding

8.2

Entertainment

8.0

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

Delta
8.1
Very good
10,874 reviews
Delta
8.1
Very good
10,874 reviews
Check prices

Crew

8.6

Comfort

7.9

Food

7.4

Overall

8.1

Boarding

8.2

Entertainment

8.0

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

United Airlines
7.4
Good
11,159 reviews
Delta
8.1
Very good
10,874 reviews
Check prices

Crew

8.6

Comfort

7.9

Food

7.4

Overall

8.1

Boarding

8.2

Entertainment

8.0

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

American Airlines
7.3
Good
14,788 reviews
Delta
8.1
Very good
10,874 reviews
Check prices

Crew

8.6

Comfort

7.9

Food

7.4

Overall

8.1

Boarding

8.2

Entertainment

8.0

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

Sun Country Air
7.3
Good
650 reviews
Delta
8.1
Very good
10,874 reviews
Check prices

Crew

8.6

Comfort

7.9

Food

7.4

Overall

8.1

Boarding

8.2

Entertainment

8.0

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

Spirit Airlines
6.4
Okay
8,741 reviews
Delta
8.1
Very good
10,874 reviews
Check prices

Crew

8.6

Comfort

7.9

Food

7.4

Overall

8.1

Boarding

8.2

Entertainment

8.0

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

Related info for your journey

Find useful and relevant information for your journey from Baltimore to St. Louis. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airports do I use to fly from Baltimore to St. Louis?

    Lambert-St Louis is the airport most travelers will use when flying to St. Louis from Baltimore/Washington. Booking flights from Baltimore/Washington (BWI) to Lambert-St Louis (STL) should be relatively easy as there are 4 daily flights to St. Louis from 6 different airlines. 3h 47m is how long a flight from Baltimore to Lambert-St Louis will take if you book a nonstop flight.

  • Can I find flights from Baltimore to St. Louis for under $200 on Cheapflights?

    Yes, there are multiple flights from Baltimore to St. Louis for under $200. The cheapest flight booked recently is on Multiple Airlines for just $125, but on average you can expect to pay $159.

  • Are there last-minute flights available from Baltimore to St. Louis for under $200?

    There are currently 20+ open flights from Baltimore to St. Louis within the next 7 days for less than $200.

  • What days are nonstop flights available from Baltimore to St. Louis?

    Days when nonstop flights are available for this flight are: Wednesday.

  • How many flights depart from Baltimore to St. Louis on average per day?

    On average 1 flight departs from Baltimore to St. Louis per day.
    Early Morning (Midnight to 6am) - 100% of flight departures

  • How long is the flight from Baltimore to St. Louis?

    For as low as $131, Spirit Airlines can have you in St. Louis from Baltimore in 13h 26m. Airlines will cover a distance of 739 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines flying from Baltimore to St. Louis round-trip?

    Flying on Spirit Airlines is currently your cheapest option to St. Louis, with prices starting at $131. Another option worth looking into is Frontier, starting at $143 round trip. Users have found that Spirit Airlines is 65% cheaper than the other options available to this destination.

  • What are the cheapest airlines to fly from Baltimore to St. Louis one-way?

    The cheapest airlines for a one-way flight from Baltimore to St. Louis are Spirit Airlines ($63), Frontier ($76), and Delta ($143).

  • What are the most popular airlines that fly from Baltimore to St. Louis?

    Before booking your flight from Baltimore to St. Louis check out the most popular airlines for this route: American Airlines, Delta or Frontier.

  • What does BWI to STL mean?

    BWI stands for Baltimore/Washington Airport, while STL stands for Lambert-St Louis Airport. These codes are often called IATA codes, a set of identifiers established by IATA (International Air Transport Association) that is widely used by airlines and the aviation industry.

  • Can I find deals for flights from Baltimore to St. Louis that include extra baggage allowance?

    The amount of baggage you can bring on your Baltimore to St. Louis flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Baltimore to St. Louis with specific airlines?

    Yes, Cheapflights allows you to browse and filter Baltimore to St. Louis flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • Can I find deals for flights from Baltimore to St. Louis that include hotel bookings?

    Yes. In addition to deals on Baltimore to St. Louis flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Baltimore to St. Louis?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Baltimore to St. Louis.

  • Can I find deals for business class flights from Baltimore to St. Louis?

    Yes. Cheapflights offers flight deals from Baltimore to St. Louis by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • Can I find deals for flights from Baltimore to St. Louis that allow pets onboard?

    Many airlines flying from Baltimore to St. Louis offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Baltimore to St. Louis?

    Yes, you can often find last-minute deals on Baltimore to St. Louis flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the Baltimore to St. Louis flight deals updated?

    The Baltimore to St. Louis flight deals you see on this page were last updated on 5/1.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Baltimore to St. Louis
See prices for flight routes from nearby airports that may be better suited for you.

Reagan-National to St. Louis flights
Dulles Intl to Kansas City flights
Dulles Intl to St. Louis flights
Reagan-National to Kansas City flights
Baltimore to Kansas City flights
Dulles Intl to Springfield flights
Reagan-National to Springfield flights
Baltimore to Springfield flights
Baltimore to Joplin flights
Reagan-National to Columbia flights
Dulles Intl to Joplin flights
Reagan-National to Joplin flights
Baltimore to Columbia flights
Dulles Intl to Columbia flights
Dulles Intl to Branson flights
Baltimore to Branson flights
Reagan-National to Fort Leonard Wood flights
Dulles Intl to Kirksville flights
Reagan-National to Branson flights
Baltimore to Fort Leonard Wood flights
Baltimore to Kirksville flights
Dulles Intl to Fort Leonard Wood flights

Top 5 airlines flying from Baltimore to St. Louis

Discover the top 5 airlines that operate flights from Baltimore to St. Louis. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,899,487 searches. Data last updated May 1, 2024.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$98Average$163FlexibilityNo cancel feeOn-time62%
Search Frontier flights
Spirit AirlinesCheapest$108Average$182FlexibilityNo cancel feeOn-time65%
Search Spirit Airlines flights
United AirlinesCheapest$173Average$341FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
American AirlinesCheapest$221Average$464FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
DeltaCheapest$279Average$373FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Hawaii to Kaua'i flights
USA to Sri Lanka flights
Washington, D.C. to Boston flights
Dallas to New Delhi flights
Boise to Seattle flights
Boston to Miami flights
Salt Lake City to Phoenix flights
Houston to Hawaii flights
Boston to Washington, D.C. flights
Denver to Charlotte flights
Miami to Madrid flights
Baltimore to London Stansted Airport flights

Search flights from Baltimore to St. Louis by cabin class

Find flights from Baltimore to St. Louis, based on your preferred cabin class, be it economy, premium economy, business, or first class.
First Class
Business Class
Prem Econ Class
Economy Class

Hourly flight availability from Baltimore to St. Louis

Find hourly flight availability from Baltimore to St. Louis. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated May 1, 2024.
15%of flight departuresEarly morningMidnight to 6 am
24%of flight departuresMorning6 am to noon
38%of flight departuresAfternoonNoon to 6 pm
23%of flight departuresEvening6 pm to midnight
Midnight
6 AM
Noon
6 PM

Weekly flight availability from Baltimore to St. Louis

Explore weekly flight availability from Baltimore to St. Louis. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated May 1, 2024.
Sunday5daily flights
Monday4daily flights
Tuesday4daily flights
Wednesday4daily flights
Thursday4daily flights
Friday4daily flights
Saturday5daily flights

Book a flight to one of these trending destinations

User searches for flights to these destinations increased 20% or more in the past 90 days compared to other destinations
Flights to Saint Peter Jersey
Flights to Kirkwall Arpt
Flights to Skiathos
Flights to Naxos
Flights to Ningbo Lishe Intl
Flights to Edremit/Korfez
Flights to Bourgas
Flights to Bodø
Flights to Pellston Emmet County
Flights to Cornwall Newquay
Flights to Ordu/Giresun
Flights to Batumi
Flights to Mason City
Flights to Biarritz Parme
Flights to Zakynthos Dionsios Salomos
Flights to Cortez Montezuma County
Flights to Clermont-Ferrand Aulnat
Flights to Nevsehir
Flights to Hyannis Barnstable
Flights to Girona Costa Brava
Flights to Kagoshima
Flights to Perugia Sant Egidio
Flights to Oran Es Senia
Flights to Chios

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Baltimore to St. Louis?

Cheapflights helps you search for flights from Baltimore to St. Louis via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from Baltimore to St. Louis?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Baltimore to St. Louis for you. Better yet — we are completely free to use.

Can Cheapflights find flights from Baltimore to St. Louis with no change fees?

Yes, we can. To see specific flights from Baltimore to St. Louis with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from Baltimore to St. Louis become cheaper?

Yes, Cheapflights offers price alerts on Baltimore to St. Louis flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
View all available airlines