$91+ Cheap flights from St. Louis to Pittsburgh (STL - PIT)
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 5/26. Fares are subject to change and may not be available on all flights or dates of travel.
STL — PIT
May 24 — May 311
Round-trip
1 adult, Economy
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Find cheap flights from St. Louis to Pittsburgh with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from St. Louis to Pittsburgh
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Best
Last-minute
One-way
Cheapest flights from St. Louis to PittsburghExplore the most affordable flight options available from St. Louis to Pittsburgh. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 24, 2026.
Explore the most affordable flight options available from St. Louis to Pittsburgh. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 24, 2026.
This Trip.com deal was found by Cheapflights users on 4/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/84:19 pm
STL
- PIT
1 stop26h 01m
Frontier
Sun 5/108:05 pm
PIT
- STL
1 stop29h 16m
Frontier
Deal found 4/21![Frontier logo]()
$196
This American Airlines deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/206:35 am
STL
- PIT
1 stop7h 04m
American Airlines
Wed 5/276:14 am
PIT
- STL
1 stop4h 58m
American Airlines
Deal found 4/23![American Airlines logo]()
$202
This Southwest deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/2210:25 am
STL
- PIT
Nonstop1h 40m
Southwest
Thu 9/247:00 am
PIT
- STL
Nonstop1h 45m
Southwest
Deal found 4/23![Southwest logo]()
$209
This Southwest deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/36:45 pm
STL
- PIT
Nonstop1h 35m
Southwest
Sat 6/66:20 pm
PIT
- STL
1 stop6h 25m
Southwest
Deal found 4/23![Southwest logo]()
$211
This Southwest deal was found by Cheapflights users on 4/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/206:45 pm
STL
- PIT
Nonstop1h 35m
Southwest
Wed 5/277:10 pm
PIT
- STL
1 stop4h 00m
Southwest
Deal found 4/20![Southwest logo]()
$225
This Delta deal was found by Cheapflights users on 4/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/219:13 am
STL
- PIT
1 stop7h 07m
Delta
Mon 5/257:50 pm
PIT
- STL
1 stop5h 09m
Delta
Deal found 4/20![Delta logo]()
$235
This Southwest deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/36:45 pm
STL
- PIT
Nonstop1h 35m
Southwest
Wed 6/1012:45 pm
PIT
- STL
1 stop7h 30m
Southwest
Deal found 4/22![Southwest logo]()
$238
This Southwest deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/108:00 am
STL
- PIT
1 stop3h 35m
Southwest
Tue 8/256:40 am
PIT
- STL
Nonstop1h 40m
Southwest
Deal found 4/23![Southwest logo]()
$243
Best flights from St. Louis to PittsburghDiscover carefully curated flight deals from St. Louis to Pittsburgh that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 24, 2026.
Discover carefully curated flight deals from St. Louis to Pittsburgh that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 24, 2026.
This United Airlines deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/21:13 pm
STL
- PIT
1 stop6h 49m
United Airlines
Wed 6/38:36 am
PIT
- STL
1 stop4h 35m
United Airlines
Deal found 4/23![United Airlines logo]()
$269
This Southwest deal was found by Cheapflights users on 4/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/1210:15 am
STL
- PIT
Nonstop1h 40m
Southwest
Thu 5/146:55 am
PIT
- STL
Nonstop1h 50m
Southwest
Deal found 4/20![Southwest logo]()
$276
This Delta deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/55:20 pm
STL
- PIT
1 stop6h 25m
Delta
Sun 6/75:46 pm
PIT
- STL
1 stop3h 53m
Delta
Deal found 4/23![Delta logo]()
$303
This Southwest deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/17:10 pm
STL
- PIT
Nonstop1h 35m
Southwest
Mon 7/66:45 am
PIT
- STL
Nonstop1h 45m
Southwest
Deal found 4/23![Southwest logo]()
$293
This Delta deal was found by Cheapflights users on 4/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/110:51 am
STL
- PIT
1 stop5h 24m
Delta
Mon 7/67:59 pm
PIT
- STL
1 stop4h 57m
Delta
Deal found 4/20![Delta logo]()
$314
This Southwest deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/1310:35 am
STL
- PIT
Nonstop1h 35m
Southwest
Tue 6/167:45 pm
PIT
- STL
Nonstop1h 45m
Southwest
Deal found 4/23![Southwest logo]()
$293
This United Airlines deal was found by Cheapflights users on 4/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/147:45 am
STL
- PIT
1 stop4h 26m
United Airlines
Sun 5/177:05 am
PIT
- STL
1 stop4h 43m
United Airlines
Deal found 4/21![United Airlines logo]()
$338
This Southwest deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/235:20 pm
STL
- PIT
1 stop5h 10m
Southwest
Sun 7/269:10 pm
PIT
- STL
1 stop3h 45m
Southwest
Deal found 4/23![Southwest logo]()
$303
This Southwest deal was found by Cheapflights users on 4/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/178:20 pm
STL
- PIT
Nonstop1h 40m
Southwest
Tue 5/197:10 pm
PIT
- STL
Nonstop1h 50m
Southwest
Deal found 4/20![Southwest logo]()
$321
This Southwest deal was found by Cheapflights users on 4/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/215:00 am
STL
- PIT
1 stop6h 00m
Southwest
Wed 5/276:05 am
PIT
- STL
2 stops7h 55m
Southwest
Deal found 4/21![Southwest logo]()
$323
This Southwest deal was found by Cheapflights users on 4/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/1410:15 am
STL
- PIT
Nonstop1h 40m
Southwest
Sun 5/175:10 am
PIT
- STL
1 stop6h 35m
Southwest
Deal found 4/21![Southwest logo]()
$348
Last-minute flights from St. Louis to PittsburghDiscover last-minute flight deals from St. Louis to Pittsburgh. Data last updated April 24, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Pittsburgh. Data last updated April 24, 2026 and is based on user searches.
This Trip.com deal was found by Cheapflights users on 4/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/84:19 pm
STL
- PIT
1 stop26h 01m
Frontier
Sun 5/108:05 pm
PIT
- STL
1 stop29h 16m
Frontier
Deal found 4/21![Frontier logo]()
$196
This American Airlines deal was found by Cheapflights users on 4/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/1212:27 pm
STL
- PIT
1 stop5h 04m
American Airlines
Thu 5/147:11 pm
PIT
- STL
1 stop5h 45m
American Airlines
Deal found 4/20![American Airlines logo]()
$265
This Southwest deal was found by Cheapflights users on 4/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/1210:15 am
STL
- PIT
Nonstop1h 40m
Southwest
Thu 5/146:55 am
PIT
- STL
Nonstop1h 50m
Southwest
Deal found 4/20![Southwest logo]()
$276
This Southwest deal was found by Cheapflights users on 4/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/1710:15 am
STL
- PIT
1 stop3h 50m
Southwest
Tue 5/195:55 am
PIT
- STL
1 stop5h 55m
Southwest
Deal found 4/20![Southwest logo]()
$300
This American Airlines deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/206:35 am
STL
- PIT
1 stop7h 04m
American Airlines
Wed 5/276:14 am
PIT
- STL
1 stop4h 58m
American Airlines
Deal found 4/23![American Airlines logo]()
$202
This Southwest deal was found by Cheapflights users on 4/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/206:45 pm
STL
- PIT
Nonstop1h 35m
Southwest
Wed 5/277:10 pm
PIT
- STL
1 stop4h 00m
Southwest
Deal found 4/20![Southwest logo]()
$225
This Delta deal was found by Cheapflights users on 4/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/219:13 am
STL
- PIT
1 stop7h 07m
Delta
Mon 5/257:50 pm
PIT
- STL
1 stop5h 09m
Delta
Deal found 4/20![Delta logo]()
$235
This American Airlines deal was found by Cheapflights users on 4/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/217:30 am
STL
- PIT
1 stop6h 10m
American Airlines
Wed 5/277:45 pm
PIT
- STL
1 stop5h 14m
American Airlines
Deal found 4/21![American Airlines logo]()
$292
One-way flights from St. Louis to PittsburghSearch for one-way flight options from St. Louis to Pittsburgh. Find affordable one-way fares based on user searches. Data last updated April 24, 2026.
Search for one-way flight options from St. Louis to Pittsburgh. Find affordable one-way fares based on user searches. Data last updated April 24, 2026.
This Southwest deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/266:45 pm
STL
- PIT
Nonstop1h 35m
Southwest
Deal found 4/23![Southwest logo]()
$91
This American Airlines deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/266:12 pm
STL
- PIT
1 stop4h 38m
American Airlines
Deal found 4/23![American Airlines logo]()
$95
This Southwest deal was found by Cheapflights users on 4/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/196:45 pm
STL
- PIT
Nonstop1h 35m
Southwest
Deal found 4/19![Southwest logo]()
$100
This Southwest deal was found by Cheapflights users on 4/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/206:45 pm
STL
- PIT
Nonstop1h 35m
Southwest
Deal found 4/20![Southwest logo]()
$117
This Delta deal was found by Cheapflights users on 4/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/206:45 am
STL
- PIT
1 stop3h 28m
Delta
Deal found 4/20![Delta logo]()
$118
This Kiwi.com deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/143:33 pm
STL
- PIT
2 stops16h 16m
Frontier
Deal found 4/22![Frontier logo]()
$124
This Kiwi.com deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/266:33 pm
STL
- PIT
2 stops23h 47m
Frontier
Deal found 4/23![Frontier logo]()
$126
This Delta deal was found by Cheapflights users on 4/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/191:27 pm
STL
- PIT
1 stop4h 28m
Delta
Deal found 4/21![Delta logo]()
$128
This Kiwi.com deal was found by Cheapflights users on 4/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/205:27 pm
STL
- PIT
2 stops27h 40m
Multiple Airlines
Deal found 4/21![Multiple Airlines logo]()
$133
This Delta deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/127:05 am
STL
- PIT
1 stop4h 39m
Delta
Deal found 4/22![Delta logo]()
$138
Find 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 24, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $196 (Trip.com) |
One-way from | $91 (Southwest) |
Popular in | July |
Cheapest in | December |
Average price | $331 |
Good round-trip deal | $350 or less |
Good one-way deal | $184 or less |
Cheapflights Fare Finder
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 2,558,603 searches. Data last updated April 24, 2026.
Use the filters below to find and compare flights from St. Louis to Pittsburgh that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
St. LouisPittsburgh
STL - PIT
STLPIT
Lambert-St Louis
Tue 6/2
1:13 pm-9:02 pm
1 stop6h 49m
Pittsburgh
Wed 6/3
8:36 am-12:11 pm
1 stop4h 35m
$269
St. LouisPittsburgh
STL - PIT
STLPIT
Lambert-St Louis
Tue 5/12
10:15 am-12:55 pm
Nonstop1h 40m
Pittsburgh
Thu 5/14
6:55 am-7:45 am
Nonstop1h 50m
$276
Quickest round-trip
St. LouisPittsburgh
STL - PIT
STLPIT
Lambert-St Louis
Wed 7/1
7:10 pm-9:45 pm
Nonstop1h 35m
Pittsburgh
Mon 7/6
6:45 am-7:30 am
Nonstop1h 45m
$293
St. LouisPittsburgh
STL - PIT
STLPIT
Lambert-St Louis
Sat 6/13
10:35 am-1:10 pm
Nonstop1h 35m
Pittsburgh
Tue 6/16
7:45 pm-8:30 pm
Nonstop1h 45m
$293
St. LouisPittsburgh
STL - PIT
STLPIT
Lambert-St Louis
Fri 6/5
5:20 pm-12:45 am
1 stop6h 25m
Pittsburgh
Sun 6/7
5:46 pm-8:39 pm
1 stop3h 53m
$303
St. LouisPittsburgh
STL - PIT
STLPIT
Lambert-St Louis
Thu 7/23
5:20 pm-11:30 pm
1 stop5h 10m
Pittsburgh
Sun 7/26
9:10 pm-11:55 pm
1 stop3h 45m
$303
St. LouisPittsburgh
STL - PIT
STLPIT
Lambert-St Louis
Wed 7/1
10:51 am-5:15 pm
1 stop5h 24m
Pittsburgh
Mon 7/6
7:59 pm-11:56 pm
1 stop4h 57m
$314
St. LouisPittsburgh
STL - PIT
STLPIT
Lambert-St Louis
Sun 5/17
8:20 pm-11:00 pm
Nonstop1h 40m
Pittsburgh
Tue 5/19
7:10 pm-8:00 pm
Nonstop1h 50m
$321
St. LouisPittsburgh
STL - PIT
STLPIT
Lambert-St Louis
Thu 5/21
5:00 am-12:00 pm
1 stop6h 00m
Pittsburgh
Wed 5/27
6:05 am-1:00 pm
2 stops7h 55m
$323
St. LouisPittsburgh
STL - PIT
STLPIT
Lambert-St Louis
Thu 5/14
7:45 am-1:11 pm
1 stop4h 26m
Pittsburgh
Sun 5/17
7:05 am-10:48 am
1 stop4h 43m
$338
Showing 1-10 of 23 resultsSorted by cheapest first
Compare providers for flights from St. Louis to Pittsburgh
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from St. Louis to Pittsburgh in April.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star |
- Most accurate provider: When it comes to deals on St. Louis-Pittsburgh flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on St. Louis-Pittsburgh flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from St. Louis-Pittsburgh flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on St. Louis-Pittsburgh flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for St. Louis-Pittsburgh flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from St. Louis to Pittsburgh
Have a flexible travel schedule? Discover the best time to fly to Pittsburgh from St. Louis with our price prediction graph.
STL-PIT
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from St. Louis to Pittsburgh
What is the cheapest month to book a flight from St. Louis to Pittsburgh?
Currently, December is the cheapest month in which you can book a flight from St. Louis to Pittsburgh (average of $263). Flying from St. Louis to Pittsburgh in July is currently the most expensive (average of $545). 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.
What is the cheapest time of day to fly from STL to PIT?
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 24, 2026.
It’s typically best to fly out from St. Louis to Pittsburgh in the afternoon. Doing so could potentially save you 47% on the flight price compared to flying in the evening, which is usually more expensive.
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 24, 2026.
Read through reviews of airlines operating flights from St. Louis to Pittsburgh, such as Southwest,Delta, andAmerican Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Comfort
8.0
Entertainment
7.5
Boarding
8.1
Crew
8.6
Food
7.0
Overall
8.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Comfort
8.0
Entertainment
7.5
Boarding
8.1
Crew
8.6
Food
7.0
Overall
8.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Comfort
8.0
Entertainment
7.5
Boarding
8.1
Crew
8.6
Food
7.0
Overall
8.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Comfort
8.0
Entertainment
7.5
Boarding
8.1
Crew
8.6
Food
7.0
Overall
8.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
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.
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Book flights to Pittsburgh if you plan to visit one of these locationsMars
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Top 3 airlines flying from St. Louis to Pittsburgh
Discover the top 3 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 2,558,603 searches. Data last updated April 24, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$208 | Average$354 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$235 | Average$372 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$252 | Average$436 | FlexibilityNo cancel fee | On-timeN/A |