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Cheap flights from Boise to St. Louis (BOI - STL) from $43

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 5/28. 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.
BOI — STL
May 7 — May 141
From?
To?
Tue 5/7
Tue 5/14
1 adult, Economy
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The best prices from Boise Air Term. Gowen Fld to Lambert-St Louis are usually found in September or April, booked 18 days in advance, depart on a Wednesday or Tuesday and return on a Wednesday

Cheap flight deals from Boise to St. Louis

Discover tips and strategies to find the most affordable flight options for your journey from Boise (BOI) 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 2, 2024.

Popular in

March

Cheapest in

September

Round-trip from

$322

One-way from

$198
High demand for flights, 19% potential price rise
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Best time to find cheap flights, 14% potential price drop
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From Boise Air Term. Gowen Fld to Lambert-St Louis
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One-way flight from Boise Air Term. Gowen Fld to Lambert-St Louis
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What is the cheapest day to fly round-trip from Boise to St. Louis?

Departing on a Tuesday is a good option for securing a great price. You can expect to save up to 32% when planning your travel around this day of the week.

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

Users have found that booking a flight from Boise to St. Louis at least 19 days early can save you up to 150% on average compared to booking a flight this week. If booking 19 days before your flight isn’t an option for you, users have found flights from Boise to St. Louis for as little as $581 when booking for a departure date within the next two weeks. You can also check prices now. Some users have found airline tickets as low as $720 for flights departing within the next 3 days.

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

Flights from Boise to St. Louis lean towards being more expensive in March. Prices are generally better when you fly from Boise to St. Louis in September, with the cheapest ticket starting at $342.

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

When flying from Boise to St. Louis, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 17% versus a flight in the morning.

Cheap Spirit Airlines flights from Boise to St. Louis

Explore cheap flight options specifically provided by Spirit Airlines for the route between Boise 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 2, 2024.
Find some of the cheapest Spirit Airlines flights traveling from Boise to St. Louis. Deals update often to give you more flight options matching your criteria
Tue 6/185:39 pmBOI - STL
1 stop18h 26mSpirit Airlines
Mon 6/242:41 pmSTL - BOI
1 stop26h 58mSpirit Airlines
Deal found 4/30$183
Thu 6/69:13 pmBOI - STL
1 stop16h 03mSpirit Airlines
Mon 6/102:41 pmSTL - BOI
1 stop26h 58mSpirit Airlines
Deal found 4/30$188
Sun 5/268:50 pmBOI - STL
1 stop17h 24mSpirit Airlines
Mon 6/34:05 pmSTL - BOI
1 stop29h 20mSpirit Airlines
Deal found 4/30$195
Tue 5/79:15 pmBOI - STL
1 stop12h 31mSpirit Airlines
Wed 5/2211:36 amSTL - BOI
1 stop9h 20mSpirit Airlines
Deal found 5/1$205
Tue 6/185:39 pmBOI - STL
1 stop18h 26mSpirit Airlines
Wed 6/261:55 pmSTL - BOI
1 stop7h 15mSpirit Airlines
Deal found 4/29$222
Thu 6/209:13 pmBOI - STL
1 stop16h 03mSpirit Airlines
Mon 6/242:41 pmSTL - BOI
1 stop26h 58mSpirit Airlines
Deal found 4/30$263
Thu 6/279:13 pmBOI - STL
1 stop16h 03mSpirit Airlines
Fri 7/53:07 pmSTL - BOI
1 stop6h 16mSpirit Airlines
Deal found 4/30$358

Cheap Delta flights from Boise to St. Louis

Explore cheap flight options specifically provided by Delta for the route between Boise 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 2, 2024.
Have a look at some of the cheapest available Delta flights departing from Boise and landing in St. Louis. Make sure to examine the flight information before completing your reservation.
Wed 6/265:57 pmBOI - STL
1 stop6h 01mDelta
Wed 7/105:59 pmSTL - BOI
1 stop6h 54mDelta
Deal found 5/1$304
Sat 9/141:15 pmBOI - STL
1 stop7h 15mDelta
Tue 9/175:35 pmSTL - BOI
1 stop6h 54mDelta
Deal found 4/30$305
Tue 6/185:57 pmBOI - STL
1 stop6h 01mDelta
Tue 6/256:25 pmSTL - BOI
1 stop6h 37mDelta
Deal found 4/29$326
Wed 6/56:06 amBOI - STL
1 stop6h 26mDelta
Mon 6/106:25 pmSTL - BOI
1 stop6h 37mDelta
Deal found 4/30$335
Wed 6/195:57 pmBOI - STL
1 stop6h 01mDelta
Fri 6/285:56 pmSTL - BOI
1 stop8h 01mDelta
Deal found 4/29$346
Thu 5/305:59 pmBOI - STL
1 stop5h 47mDelta
Sun 6/26:50 pmSTL - BOI
1 stop6h 24mDelta
Deal found 5/1$355
Sun 6/163:05 pmBOI - STL
1 stop5h 50mDelta
Wed 6/262:29 pmSTL - BOI
1 stop5h 29mDelta
Deal found 4/30$362
Sat 6/155:30 amBOI - STL
1 stop8h 03mDelta
Mon 6/246:25 pmSTL - BOI
1 stop6h 37mDelta
Deal found 4/29$366
Wed 6/191:55 pmBOI - STL
2 stops10h 03mDelta
Tue 6/255:56 pmSTL - BOI
1 stop8h 01mDelta
Deal found 4/30$368

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

Find cheap flight options from Boise 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 2, 2024.
Listed are some of the best fares we've found on flights departing from Boise to St. Louis in 2024. For more flight deals, be sure to check back very soon.
Sun 5/268:50 pmBOI - STL
1 stop17h 24mSpirit Airlines
Mon 6/34:05 pmSTL - BOI
1 stop29h 20mSpirit Airlines
Deal found 4/30$195
Wed 5/158:46 pmBOI - STL
3 stops38h 34mMultiple Airlines
Wed 5/2211:36 amSTL - BOI
1 stop9h 20mMultiple Airlines
Deal found 4/30$203
Tue 5/79:15 pmBOI - STL
1 stop12h 31mSpirit Airlines
Wed 5/2211:36 amSTL - BOI
1 stop9h 20mSpirit Airlines
Deal found 5/1$205
Wed 5/153:00 pmBOI - STL
1 stop7h 59mAlaska Airlines
Wed 5/222:36 pmSTL - BOI
1 stop9h 24mAlaska Airlines
Deal found 4/30$328
Wed 5/158:46 pmBOI - STL
3 stops38h 34mMultiple Airlines
Wed 5/2212:45 pmSTL - BOI
3 stops32h 15mMultiple Airlines
Deal found 4/30$351
Thu 5/305:59 pmBOI - STL
1 stop5h 47mDelta
Sun 6/26:50 pmSTL - BOI
1 stop6h 24mDelta
Deal found 5/1$355
Thu 5/307:05 pmBOI - STL
1 stop4h 41mDelta
Sun 6/27:55 amSTL - BOI
1 stop5h 27mDelta
Deal found 4/30$366
Sun 5/1210:55 amBOI - STL
2 stops27h 19mMultiple Airlines
Tue 5/142:35 pmSTL - BOI
3 stops30h 21mMultiple Airlines
Deal found 4/29$371
Sat 5/183:23 pmBOI - STL
1 stop7h 36mAlaska Airlines
Fri 5/247:41 pmSTL - BOI
1 stop24h 18mAlaska Airlines
Deal found 4/30$390

Boise to St. Louis 2024 flight deals

Discover exclusive flight deals for travel between Boise 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 2, 2024.
Listed are some of the best fares we've found on flights departing from Boise to St. Louis in 2024. For more flight deals, be sure to check back very soon.
Tue 6/185:39 pmBOI - STL
1 stop18h 26mSpirit Airlines
Mon 6/242:41 pmSTL - BOI
1 stop26h 58mSpirit Airlines
Deal found 4/30$183
Thu 6/69:13 pmBOI - STL
1 stop16h 03mSpirit Airlines
Mon 6/102:41 pmSTL - BOI
1 stop26h 58mSpirit Airlines
Deal found 4/30$188
Sun 5/268:50 pmBOI - STL
1 stop17h 24mSpirit Airlines
Mon 6/34:05 pmSTL - BOI
1 stop29h 20mSpirit Airlines
Deal found 4/30$195
Wed 5/158:46 pmBOI - STL
3 stops38h 34mMultiple Airlines
Wed 5/2211:36 amSTL - BOI
1 stop9h 20mMultiple Airlines
Deal found 4/30$203
Tue 5/79:15 pmBOI - STL
1 stop12h 31mSpirit Airlines
Wed 5/2211:36 amSTL - BOI
1 stop9h 20mSpirit Airlines
Deal found 5/1$205
Tue 6/185:39 pmBOI - STL
1 stop18h 26mSpirit Airlines
Wed 6/261:55 pmSTL - BOI
1 stop7h 15mSpirit Airlines
Deal found 4/29$222
Thu 6/67:27 pmBOI - STL
2 stops20h 44mMultiple Airlines
Mon 6/102:41 pmSTL - BOI
1 stop6h 42mMultiple Airlines
Deal found 4/30$253
Thu 6/209:13 pmBOI - STL
1 stop16h 03mSpirit Airlines
Mon 6/242:41 pmSTL - BOI
1 stop26h 58mSpirit Airlines
Deal found 4/30$263
Thu 6/67:27 pmBOI - STL
3 stops20h 44mMultiple Airlines
Mon 6/102:41 pmSTL - BOI
1 stop6h 42mMultiple Airlines
Deal found 4/30$278

Boise to St. Louis flights leaving soon

Find last-minute flight options from Boise 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 2, 2024.
Check out these flights departing soon from Boise to St. Louis. Users should be sure to double check the price, date, and time of their last-minute flight.
Tue 5/79:15 pmBOI - STL
1 stop12h 31mSpirit Airlines
Wed 5/2211:36 amSTL - BOI
1 stop9h 20mSpirit Airlines
Deal found 5/1$205
Sat 5/115:52 pmBOI - STL
2 stops19h 23mDelta
Tue 5/147:55 amSTL - BOI
1 stop5h 27mDelta
Deal found 4/29$450
Sat 5/115:52 pmBOI - STL
2 stops18h 40mDelta
Tue 5/147:55 amSTL - BOI
1 stop5h 27mDelta
Deal found 4/30$455
Tue 5/71:33 pmBOI - STL
2 stops9h 26mAlaska Airlines
Wed 5/222:36 pmSTL - BOI
1 stop9h 24mAlaska Airlines
Deal found 5/1$505
Sat 5/118:30 amBOI - STL
1 stop6h 16mUnited Airlines
Tue 5/144:51 pmSTL - BOI
1 stop7h 13mUnited Airlines
Deal found 4/29$517
Sat 5/1110:36 amBOI - STL
1 stop5h 02mUnited Airlines
Tue 5/144:51 pmSTL - BOI
1 stop7h 13mUnited Airlines
Deal found 4/30$527
Tue 5/77:00 amBOI - STL
2 stops15h 59mAlaska Airlines
Wed 5/227:00 amSTL - BOI
2 stops16h 14mAlaska Airlines
Deal found 5/1$617
Mon 5/62:37 pmBOI - STL
1 stop5h 32mUnited Airlines
Mon 5/134:51 pmSTL - BOI
2 stops19h 26mUnited Airlines
Deal found 4/30$673
Thu 5/96:35 amBOI - STL
1 stop5h 06mUnited Airlines
Tue 5/148:47 amSTL - BOI
1 stop26h 07mUnited Airlines
Deal found 5/1$683

One-way flights to St. Louis from Boise

Search for one-way flight options from Boise 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 2, 2024.
Take a look at some of the best available options we've come across on one-way flights from Boise to St. Louis. For those needing a return trip from Boise, there is a search form available above.
Tue 5/289:15 pmBOI - STL
1 stop12h 31mSpirit Airlines
Deal found 5/1$43
Tue 5/219:15 pmBOI - STL
1 stop12h 31mSpirit Airlines
Deal found 4/30$53
Thu 5/238:50 pmBOI - STL
1 stop17h 24mSpirit Airlines
Deal found 5/1$92
Sun 5/194:20 pmBOI - STL
1 stop21h 54mSpirit Airlines
Deal found 5/1$104
Sun 5/268:50 pmBOI - STL
1 stop17h 24mSpirit Airlines
Deal found 5/1$111
Tue 6/255:39 pmBOI - STL
1 stop18h 26mSpirit Airlines
Deal found 5/1$115
Thu 5/235:20 pmBOI - STL
2 stops22h 50mMultiple Airlines
Deal found 5/1$136
Wed 5/295:20 pmBOI - STL
3 stops24h 20mSpirit Airlines
Deal found 4/30$141
Wed 5/297:05 pmBOI - STL
1 stop4h 41mDelta
Deal found 5/1$152

Find flights from Boise to St. Louis within your budget

Customize your flight search to find flights from Boise 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 2, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$183 - $517

Route

Depart

Return

Price

Boise Air Term. Gowen FldLambert-St Louis

BOI - STL

BOISTL

Boise Air Term. Gowen Fld

Tue 6/18

1 stop18h 26m

Lambert-St Louis

Mon 6/24

1 stop26h 58m

$183

Boise Air Term. Gowen FldLambert-St Louis

BOI - STL

BOISTL

Boise Air Term. Gowen Fld

Thu 6/6

1 stop16h 03m

Lambert-St Louis

Mon 6/10

1 stop26h 58m

$188

Boise Air Term. Gowen FldLambert-St Louis

BOI - STL

BOISTL

Boise Air Term. Gowen Fld

Sun 5/26

1 stop17h 24m

Lambert-St Louis

Mon 6/3

1 stop29h 20m

$195

Boise Air Term. Gowen FldLambert-St Louis

BOI - STL

BOISTL

Boise Air Term. Gowen Fld

Wed 5/15

3 stops38h 34m

Lambert-St Louis

Wed 5/22

1 stop9h 20m

$203

Boise Air Term. Gowen FldLambert-St Louis

BOI - STL

BOISTL

Boise Air Term. Gowen Fld

Thu 6/6

2 stops20h 44m

Lambert-St Louis

Mon 6/10

1 stop6h 42m

$253

Boise Air Term. Gowen FldLambert-St Louis

BOI - STL

BOISTL

Boise Air Term. Gowen Fld

Wed 6/26

1 stop6h 01m

Lambert-St Louis

Wed 7/10

1 stop6h 54m

$304

Boise Air Term. Gowen FldLambert-St Louis

BOI - STL

BOISTL

Boise Air Term. Gowen Fld

Wed 5/15

1 stop7h 59m

Lambert-St Louis

Wed 5/22

1 stop9h 24m

$328

Boise Air Term. Gowen FldLambert-St Louis

BOI - STL

BOISTL

Boise Air Term. Gowen Fld

Wed 6/19

1 stop5h 45m

Lambert-St Louis

Mon 6/24

1 stop6h 33m

$330

Boise Air Term. Gowen FldLambert-St Louis

BOI - STL

BOISTL

Boise Air Term. Gowen Fld

Sat 5/11

1 stop6h 16m

Lambert-St Louis

Tue 5/14

1 stop7h 13m

$517

Flights are sorted by cheapest first

Deals found on 4/30

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

Use this chart to determine the optimal time to book a round-trip flight from Boise to St. Louis. Price data was last updated on January 28, 2024.
To ensure you get the cheapest price possible for a flight from Boise to St. Louis, you should look to book at least 18 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 Boise to St. Louis?

Use this chart to determine the cheapest time to fly round-trip from Boise 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 Boise to St. Louis flight should consider departing on Wednesday mornings when fares are most often at their lowest. Sunday mornings 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 Boise to St. Louis by taking into account the cheapest months to travel. The average price of a one-way flight from Boise to St. Louis is currently $105 while a round-trip flight costs $278. Price data was last updated on April 28, 2024.

Currently, September is the cheapest month in which you can book a flight from Boise to St. Louis (average of $322). Flying from Boise 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 2, 2024.
Get a feel of what it's like to fly with Spirit Airlines, Delta and Alaska Airlines from Boise to St. Louis by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.1
Very good
9,115 reviews
Check prices

Boarding

8.2

Overall

8.1

Comfort

7.9

Crew

8.6

Entertainment

7.3

Food

7.3

Reviews

1 / 10

Paid a lot for our exit row seats and they weren’t that roomy.

Alaska Airlines
8.1
Very good
9,115 reviews
Alaska Airlines
8.1
Very good
9,115 reviews
Check prices

Boarding

8.2

Overall

8.1

Comfort

7.9

Crew

8.6

Entertainment

7.3

Food

7.3

Reviews

1 / 10

Paid a lot for our exit row seats and they weren’t that roomy.

Delta
8.1
Very good
10,874 reviews
Alaska Airlines
8.1
Very good
9,115 reviews
Check prices

Boarding

8.2

Overall

8.1

Comfort

7.9

Crew

8.6

Entertainment

7.3

Food

7.3

Reviews

1 / 10

Paid a lot for our exit row seats and they weren’t that roomy.

United Airlines
7.4
Good
11,159 reviews
Alaska Airlines
8.1
Very good
9,115 reviews
Check prices

Boarding

8.2

Overall

8.1

Comfort

7.9

Crew

8.6

Entertainment

7.3

Food

7.3

Reviews

1 / 10

Paid a lot for our exit row seats and they weren’t that roomy.

American Airlines
7.3
Good
14,788 reviews
Alaska Airlines
8.1
Very good
9,115 reviews
Check prices

Boarding

8.2

Overall

8.1

Comfort

7.9

Crew

8.6

Entertainment

7.3

Food

7.3

Reviews

1 / 10

Paid a lot for our exit row seats and they weren’t that roomy.

Spirit Airlines
6.4
Okay
8,741 reviews
Alaska Airlines
8.1
Very good
9,115 reviews
Check prices

Boarding

8.2

Overall

8.1

Comfort

7.9

Crew

8.6

Entertainment

7.3

Food

7.3

Reviews

1 / 10

Paid a lot for our exit row seats and they weren’t that roomy.

Related info for your journey

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

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

    Yes, there are multiple flights from Boise to St. Louis for under $200. The cheapest flight booked recently is on Spirit Airlines for just $183, but on average you can expect to pay $288.

  • Are there last-minute flights available from Boise to St. Louis for under $300?

    There are currently 16+ open flights from Boise to St. Louis within the next 7 days for less than $300.

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

    Currently priced at $183, Spirit Airlines will fly you from Boise to St. Louis and back. In addition to Spirit Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Delta and Alaska Airlines - these airlines can fly you to your destination from $304 and $328, respectively. You may be able to fly from Boise to St. Louis for 63% less than the average price by searching for these airlines.

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

    The cheapest airlines for a one-way flight from Boise to St. Louis are Spirit Airlines ($43), Delta ($152), and Alaska Airlines ($198).

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

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

  • What does BOI to STL mean?

    BOI and STL are unique codes to identify airports used in the aviation industry. They are defined by IATA (International Air Transport Association) and are commonly called IATA codes. BOI to STL refers to a flight route from Boise Air Term. Gowen Fld Airport to Lambert-St Louis Airport.

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

    The amount of baggage you can bring on your Boise 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 Boise to St. Louis with specific airlines?

    Yes, Cheapflights allows you to browse and filter Boise 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 Boise to St. Louis that include hotel bookings?

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

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

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

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

    Yes. Cheapflights offers flight deals from Boise 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 Boise to St. Louis that allow pets onboard?

    Many airlines flying from Boise 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 Boise to St. Louis?

    Yes, you can often find last-minute deals on Boise 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 Boise to St. Louis flight deals updated?

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

See more FAQs

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

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Top 5 airlines flying from Boise to St. Louis

Discover the top 5 airlines that operate flights from Boise 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 2, 2024.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$272Average$344FlexibilityNo cancel feeOn-time65%
Search Spirit Airlines flights
American AirlinesCheapest$287Average$469FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
DeltaCheapest$297Average$462FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
United AirlinesCheapest$339Average$616FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Alaska AirlinesCheapest$354Average$559FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines flights
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Search flights from Boise to St. Louis by cabin class

Find flights from Boise 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

Weekly flight availability from Boise to St. Louis

Explore weekly flight availability from Boise 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 2, 2024.
Sunday1daily flight
Monday0daily flights
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Can Cheapflights notify me if prices for flights from Boise to St. Louis become cheaper?

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