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Cheap flights from St. Louis to Pittsburgh (STL - PIT) from $76

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.
STL — PIT
May 4 — May 111
From?
To?
Sat 5/4
Sat 5/11
1 adult, Economy
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The best prices from Lambert-St Louis to Pittsburgh are usually found in January or September, booked 64 days in advance, depart on a Monday or Thursday and return on a Tuesday

Cheap flight deals from St. Louis to Pittsburgh

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Pittsburgh (PIT). 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 April 29, 2024.

Popular in

December

Cheapest in

January

Round-trip from

$268

One-way from

$139
High demand for flights, 28% potential price rise
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Best time to find cheap flights, 17% potential price drop
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From Lambert-St Louis to Pittsburgh
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One-way flight from Lambert-St Louis to Pittsburgh
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What is the cheapest day to fly round-trip from St. Louis to Pittsburgh?

Tuesday flights are found to be more expensive to fly from St. Louis to Pittsburgh. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Pittsburgh.

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

Travelers have found it’s best to book a flight 22 days in advance to save up to 125% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 22 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from St. Louis to Pittsburgh 1-2 weeks in advance for as low as $382, or $537 for flights within the next 24 hours.

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

Due to multiple factors, expect to potentially pay more when booking in December. For low rates, January can be a great choice for travel to Pittsburgh. Flights to Pittsburgh from St. Louis in January are about $319 on average during January, but can be found for as low as $194.

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

It’s typically best to fly out from St. Louis to Pittsburgh in the evening. Doing so could potentially save you 24% on the flight price compared to flying in the morning, which is usually more expensive.

Cheap American Airlines flights from St. Louis to Pittsburgh

Explore cheap flight options specifically provided by American Airlines for the route between St. Louis and Pittsburgh. 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 2,948,547 searches. Data last updated April 29, 2024.
Check out some of the cheapest American Airlines flights we've come across from St. Louis to Pittsburgh. Come back soon if you're not finding the exact deal you're looking for.
Tue 8/205:30 amSTL - PIT
1 stop4h 43mAmerican Airlines
Thu 8/221:59 pmPIT - STL
1 stop6h 21mAmerican Airlines
Deal found 4/28$244
Thu 6/205:38 pmSTL - PIT
1 stop5h 18mAmerican Airlines
Sun 6/235:07 amPIT - STL
1 stop4h 26mAmerican Airlines
Deal found 4/28$285
Thu 8/16:08 amSTL - PIT
1 stop5h 30mAmerican Airlines
Sun 8/45:00 amPIT - STL
1 stop4h 30mAmerican Airlines
Deal found 4/28$286
Fri 5/104:20 pmSTL - PIT
1 stop6h 43mAmerican Airlines
Sun 5/126:25 amPIT - STL
1 stop4h 28mAmerican Airlines
Deal found 4/28$406
Thu 5/3010:46 amSTL - PIT
2 stops11h 39mAmerican Airlines
Tue 6/46:31 amPIT - STL
2 stops10h 04mAmerican Airlines
Deal found 4/28$544
Wed 6/55:30 amSTL - PIT
2 stops7h 54mAmerican Airlines
Sun 6/95:07 amPIT - STL
1 stop4h 26mAmerican Airlines
Deal found 4/28$555
Wed 6/59:50 amSTL - PIT
2 stops10h 12mAmerican Airlines
Sun 6/98:28 amPIT - STL
2 stops8h 38mAmerican Airlines
Deal found 4/28$562
Thu 8/15:17 amSTL - PIT
2 stops9h 32mAmerican Airlines
Sun 8/45:00 amPIT - STL
1 stop4h 30mAmerican Airlines
Deal found 4/28$617
Thu 6/206:00 amSTL - PIT
2 stops7h 24mAmerican Airlines
Sun 6/238:28 amPIT - STL
2 stops8h 38mAmerican Airlines
Deal found 4/28$625

Cheap Delta flights from St. Louis to Pittsburgh

Explore cheap flight options specifically provided by Delta for the route between St. Louis and Pittsburgh. 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 2,948,547 searches. Data last updated April 29, 2024.
Have a look at some of the cheapest available Delta flights departing from St. Louis and landing in Pittsburgh. If these deals don't fit your criteria, make sure to check back soon as new deals are always added.
Fri 7/267:06 pmSTL - PIT
1 stop4h 04mDelta
Mon 7/297:45 pmPIT - STL
1 stop4h 59mDelta
Deal found 4/29$278
Tue 5/1412:00 pmSTL - PIT
1 stop4h 30mDelta
Wed 5/156:05 amPIT - STL
1 stop4h 14mDelta
Deal found 4/28$318

Cheap St. Louis to Pittsburgh flights in April & May 2024

Find cheap flight options from St. Louis to Pittsburgh specifically for the months of April and May 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,948,547 searches. Prices were last updated on April 29, 2024.
The lowest fares we've come across on flights traveling from St. Louis to Pittsburgh in April and May 2024. More deals are always being added, so be sure to check back regularly.
Tue 5/2810:34 amSTL - PIT
1 stop7h 07mMultiple Airlines
Tue 6/49:43 pmPIT - STL
1 stop12h 47mMultiple Airlines
Deal found 4/28$150
Thu 5/307:30 pmSTL - PIT
1 stop23h 47mMultiple Airlines
Tue 6/49:43 pmPIT - STL
1 stop12h 47mMultiple Airlines
Deal found 4/28$193
Thu 5/236:19 pmSTL - PIT
1 stop26h 05mMultiple Airlines
Tue 5/289:43 pmPIT - STL
1 stop12h 53mMultiple Airlines
Deal found 4/28$229
Tue 5/282:35 pmSTL - PIT
1 stop8h 24mSpirit Airlines
Tue 6/45:40 amPIT - STL
3 stops32h 25mSpirit Airlines
Deal found 4/28$231
Sun 5/267:30 pmSTL - PIT
1 stop28h 29mMultiple Airlines
Sun 6/28:58 pmPIT - STL
1 stop13h 38mMultiple Airlines
Deal found 4/28$240
Thu 5/97:30 pmSTL - PIT
1 stop22h 34mMultiple Airlines
Sun 5/1212:36 pmPIT - STL
1 stop22h 11mMultiple Airlines
Deal found 4/28$275
Tue 5/2810:34 amSTL - PIT
3 stops30h 30mSpirit Airlines
Tue 6/45:40 amPIT - STL
3 stops32h 25mSpirit Airlines
Deal found 4/28$301
Fri 5/109:35 amSTL - PIT
3 stops28h 53mMultiple Airlines
Sun 5/126:37 amPIT - STL
1 stop11h 52mMultiple Airlines
Deal found 4/28$307
Thu 5/97:30 pmSTL - PIT
1 stop22h 34mSpirit Airlines
Sun 5/126:20 amPIT - STL
2 stops33h 54mSpirit Airlines
Deal found 4/28$316

St. Louis to Pittsburgh 2024 flight deals

Discover exclusive flight deals for travel between St. Louis and Pittsburgh in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,948,547 searches. Data last updated April 29, 2024.
The lowest fares we've come across on flights traveling from St. Louis to Pittsburgh in April and May 2024. More deals are always being added, so be sure to check back regularly.
Tue 5/2810:34 amSTL - PIT
1 stop7h 07mMultiple Airlines
Tue 6/49:43 pmPIT - STL
1 stop12h 47mMultiple Airlines
Deal found 4/28$150
Wed 6/510:36 pmSTL - PIT
1 stop7h 45mFrontier
Sun 6/98:55 pmPIT - STL
1 stop13h 35mFrontier
Deal found 4/28$189
Thu 5/307:30 pmSTL - PIT
1 stop23h 47mMultiple Airlines
Tue 6/49:43 pmPIT - STL
1 stop12h 47mMultiple Airlines
Deal found 4/28$193
Thu 5/236:19 pmSTL - PIT
1 stop26h 05mMultiple Airlines
Tue 5/289:43 pmPIT - STL
1 stop12h 53mMultiple Airlines
Deal found 4/28$229
Tue 5/282:35 pmSTL - PIT
1 stop8h 24mSpirit Airlines
Tue 6/45:40 amPIT - STL
3 stops32h 25mSpirit Airlines
Deal found 4/28$231
Sun 5/267:30 pmSTL - PIT
1 stop28h 29mMultiple Airlines
Sun 6/28:58 pmPIT - STL
1 stop13h 38mMultiple Airlines
Deal found 4/28$240
Tue 8/205:30 amSTL - PIT
1 stop4h 43mAmerican Airlines
Thu 8/221:59 pmPIT - STL
1 stop6h 21mAmerican Airlines
Deal found 4/28$244
Fri 6/1410:36 pmSTL - PIT
1 stop6h 55mMultiple Airlines
Mon 6/1710:25 pmPIT - STL
1 stop16h 58mMultiple Airlines
Deal found 4/28$255
Wed 7/318:00 pmSTL - PIT
1 stop22h 50mMultiple Airlines
Sun 8/41:01 pmPIT - STL
1 stop5h 21mMultiple Airlines
Deal found 4/28$272

One-way flights to Pittsburgh from St. Louis

Search for one-way flight options from St. Louis to Pittsburgh. 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 2,948,547 searches. Data last updated April 29, 2024.
Users in need of a one-way flight from St. Louis to Pittsburgh can choose from these deals. Users can also find round-trip St. Louis to Pittsburgh flights by using the search form above.
Tue 5/2810:34 amSTL - PIT
1 stop12h 07mSpirit Airlines
Deal found 4/28$76
Wed 9/117:30 amSTL - PIT
1 stop7h 12mAmerican Airlines
Deal found 4/28$97
Mon 9/95:37 amSTL - PIT
1 stop6h 00mAmerican Airlines
Deal found 4/28$130
Sun 7/76:10 pmSTL - PIT
1 stop3h 55mDelta
Deal found 4/29$139
Sun 9/85:37 amSTL - PIT
1 stop5h 01mAmerican Airlines
Deal found 4/28$148
Tue 5/2810:34 amSTL - PIT
3 stops30h 30mSpirit Airlines
Deal found 4/28$157
Fri 5/244:02 pmSTL - PIT
1 stop6h 23mAmerican Airlines
Deal found 4/27$159
Thu 5/97:30 pmSTL - PIT
1 stop22h 34mSpirit Airlines
Deal found 4/28$166
Thu 5/97:30 pmSTL - PIT
2 stops24h 54mSpirit Airlines
Deal found 4/28$185

Find flights from St. Louis to Pittsburgh within your budget

Customize your flight search to find flights from St. Louis to Pittsburgh 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 2,948,547 searches. Data last updated April 29, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$150 - $373

Route

Depart

Return

Price

Lambert-St LouisPittsburgh

STL - PIT

STLPIT

Lambert-St Louis

Tue 5/28

1 stop7h 07m

Pittsburgh

Tue 6/4

1 stop12h 47m

$150

Lambert-St LouisPittsburgh

STL - PIT

STLPIT

Lambert-St Louis

Wed 6/5

1 stop7h 45m

Pittsburgh

Sun 6/9

1 stop13h 35m

$189

Lambert-St LouisPittsburgh

STL - PIT

STLPIT

Lambert-St Louis

Thu 5/30

1 stop23h 47m

Pittsburgh

Tue 6/4

1 stop12h 47m

$193

Lambert-St LouisPittsburgh

STL - PIT

STLPIT

Lambert-St Louis

Thu 5/23

1 stop26h 05m

Pittsburgh

Tue 5/28

1 stop12h 53m

$229

Lambert-St LouisPittsburgh

STL - PIT

STLPIT

Lambert-St Louis

Tue 5/28

1 stop8h 24m

Pittsburgh

Tue 6/4

3 stops32h 25m

$231

Lambert-St LouisPittsburgh

STL - PIT

STLPIT

Lambert-St Louis

Tue 8/20

1 stop4h 43m

Pittsburgh

Thu 8/22

1 stop6h 21m

$244

Lambert-St LouisPittsburgh

STL - PIT

STLPIT

Lambert-St Louis

Fri 7/26

1 stop4h 04m

Pittsburgh

Mon 7/29

1 stop4h 59m

$278

Lambert-St LouisPittsburgh

STL - PIT

STLPIT

Lambert-St Louis

Thu 6/20

1 stop5h 18m

Pittsburgh

Sun 6/23

1 stop4h 26m

$285

Lambert-St LouisPittsburgh

STL - PIT

STLPIT

Lambert-St Louis

Tue 8/20

2 stops19h 35m

Pittsburgh

Thu 8/22

1 stop4h 07m

$373

Flights are sorted by cheapest first

Deals found on 4/28

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

Use this chart to determine the optimal time to book a round-trip flight from St. Louis to Pittsburgh. Price data was last updated on January 28, 2024.
The best time to book flights from St. Louis to Pittsburgh is 63 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
Search Deals

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

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

Average price of flights to Pittsburgh by month

Plan your trip from St. Louis to Pittsburgh by taking into account the cheapest months to travel. The average price of a one-way flight from St. Louis to Pittsburgh is currently $140 while a round-trip flight costs $241. Price data was last updated on April 21, 2024.

Currently, January is the cheapest month in which you can book a flight from St. Louis to Pittsburgh (average of $268). Flying from St. Louis to Pittsburgh in July is currently the most expensive (average of $329). 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

$268

February

$273

March

$315

April

$308

May

$325

June

$328

July

$329

August

$294

September

$290

October

$289

November

$301

December

$278

Temperature and rainfall in Pittsburgh by month

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

PIT

Temperature

28.4 - 73.4 °F

Reviews of airlines servicing Pittsburgh

Get insights into the airlines that provide service to Pittsburgh. 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 Pittsburgh. Reviews last updated April 29, 2024.
Read through reviews of airlines operating flights from St. Louis to Pittsburgh, such as American Airlines, Delta and United Airlines. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.1
Very good
9,116 reviews
Check prices

Entertainment

7.3

Overall

8.1

Food

7.3

Boarding

8.2

Comfort

7.9

Crew

8.6

Reviews

1 / 10

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

Alaska Airlines
8.1
Very good
9,116 reviews
Alaska Airlines
8.1
Very good
9,116 reviews
Check prices

Entertainment

7.3

Overall

8.1

Food

7.3

Boarding

8.2

Comfort

7.9

Crew

8.6

Reviews

1 / 10

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

Delta
8.1
Very good
10,913 reviews
Alaska Airlines
8.1
Very good
9,116 reviews
Check prices

Entertainment

7.3

Overall

8.1

Food

7.3

Boarding

8.2

Comfort

7.9

Crew

8.6

Reviews

1 / 10

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

United Airlines
7.4
Good
11,202 reviews
Alaska Airlines
8.1
Very good
9,116 reviews
Check prices

Entertainment

7.3

Overall

8.1

Food

7.3

Boarding

8.2

Comfort

7.9

Crew

8.6

Reviews

1 / 10

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

American Airlines
7.3
Good
14,834 reviews
Alaska Airlines
8.1
Very good
9,116 reviews
Check prices

Entertainment

7.3

Overall

8.1

Food

7.3

Boarding

8.2

Comfort

7.9

Crew

8.6

Reviews

1 / 10

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

Spirit Airlines
6.4
Okay
8,745 reviews
Alaska Airlines
8.1
Very good
9,116 reviews
Check prices

Entertainment

7.3

Overall

8.1

Food

7.3

Boarding

8.2

Comfort

7.9

Crew

8.6

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 St. Louis to Pittsburgh. 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 St. Louis to Pittsburgh?

    If you wish to fly to Pittsburgh from St. Louis, then you need to book flights from Lambert-St Louis to Pittsburgh. There is 1 flight from Lambert-St Louis (STL) to Pittsburgh (PIT) per day to choose from. Flights to Pittsburgh from Lambert-St Louis are available from 4 different airlines, which means you should have some options if you want to compare airfare deals. 5h 36m is how long a nonstop flight from St. Louis to Pittsburgh typically takes.

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

    Yes, there are multiple flights from St. Louis to Pittsburgh for under $200. The cheapest flight booked recently is on Multiple Airlines for just $150, but on average you can expect to pay $268.

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

    Currently priced at $189, Frontier will fly you from St. Louis to Pittsburgh and back. In addition to Frontier, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Spirit Airlines and American Airlines - these airlines can fly you to your destination from $231 and $244, respectively. These flights start at 40% lower than the current average price 3 months from now.

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

    The cheapest airline one-way is Spirit Airlines, with whom users have recently found tickets for as low as $76. However, be on the lookout for offers from American Airlines and Delta, as they are both options that can get you from St. Louis to Pittsburgh for a low price.

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

    When booking a flight from St. Louis to Pittsburgh, you may want to consider flying on American Airlines, Delta or Spirit Airlines as they are the most popular for this route.

  • What does STL to PIT mean?

    STL and PIT 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. STL to PIT refers to a flight route from Lambert-St Louis Airport to Pittsburgh Airport.

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

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

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

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

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

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

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

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

    Many airlines flying from St. Louis to Pittsburgh 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 St. Louis to Pittsburgh?

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

    The St. Louis to Pittsburgh flight deals you see on this page were last updated on 4/28.

See more FAQs

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Alternative routes for St. Louis to Pittsburgh
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Top 4 airlines flying from St. Louis to Pittsburgh

Discover the top 4 airlines that operate flights from St. Louis to Pittsburgh. 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 2,948,547 searches. Data last updated April 29, 2024.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$153Average$231FlexibilityNo cancel feeOn-time65%
Search Spirit Airlines flights
DeltaCheapest$222Average$307FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
American AirlinesCheapest$238Average$342FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
United AirlinesCheapest$274Average$341FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
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Search flights from St. Louis to Pittsburgh by cabin class

Find flights from St. Louis to Pittsburgh, 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 St. Louis to Pittsburgh

Find hourly flight availability from St. Louis to Pittsburgh. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 29, 2024.
0%of flight departuresEarly morningMidnight to 6 am
0%of flight departuresMorning6 am to noon
100%of flight departuresAfternoonNoon to 6 pm
0%of flight departuresEvening6 pm to midnight
Midnight
6 AM
Noon
6 PM

Weekly flight availability from St. Louis to Pittsburgh

Explore weekly flight availability from St. Louis to Pittsburgh. 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 April 29, 2024.
Sunday2daily flights
Monday1daily flight
Tuesday1daily flight
Wednesday1daily flight
Thursday1daily flight
Friday1daily flight
Saturday1daily flight

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

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Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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