$90+ 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 10/21. Fares are subject to change and may not be available on all flights or dates of travel.
STL — PIT
Aug 27 — Sep 31
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 July 28, 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 July 28, 2026.
This Southwest deal was found by Cheapflights users on 7/27. 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 8/186:50 pm
STL
- PIT
Nonstop1h 35m
Southwest
Sat 8/226:50 am
PIT
- STL
Nonstop1h 40m
Southwest
Deal found 7/27![Southwest logo]()
$197
This Southwest deal was found by Cheapflights users on 7/28. 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 9/311:40 am
STL
- PIT
1 stop5h 00m
Southwest
Mon 9/77:00 am
PIT
- STL
Nonstop1h 45m
Southwest
Deal found 7/28![Southwest logo]()
$207
This Southwest deal was found by Cheapflights users on 7/28. 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 9/34:15 pm
STL
- PIT
1 stop4h 40m
Southwest
Tue 9/86:55 pm
PIT
- STL
1 stop3h 50m
Southwest
Deal found 7/28![Southwest logo]()
$217
This Southwest deal was found by Cheapflights users on 7/25. 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 8/2910:15 am
STL
- PIT
Nonstop1h 40m
Southwest
Tue 9/16:40 am
PIT
- STL
Nonstop1h 40m
Southwest
Deal found 7/25![Southwest logo]()
$227
This United Airlines deal was found by Cheapflights users on 7/25. 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.
Sat 8/298:00 am
STL
- PIT
1 stop4h 15m
United Airlines
Sat 9/58:45 am
PIT
- STL
1 stop4h 18m
United Airlines
Deal found 7/25![United Airlines logo]()
$232
This Delta deal was found by Cheapflights users on 7/25. 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.
Sat 8/295:33 pm
STL
- PIT
1 stop5h 01m
Delta
Thu 9/312:50 pm
PIT
- STL
1 stop6h 03m
Delta
Deal found 7/25![Delta logo]()
$237
This United Airlines deal was found by Cheapflights users on 7/24. 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.
Wed 9/28:00 am
STL
- PIT
1 stop4h 15m
United Airlines
Mon 9/77:50 pm
PIT
- STL
1 stop4h 11m
United Airlines
Deal found 7/24![United Airlines logo]()
$242
This Southwest deal was found by Cheapflights users on 7/24. 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 10/85:25 am
STL
- PIT
1 stop3h 40m
Southwest
Mon 10/128:55 pm
PIT
- STL
1 stop3h 40m
Southwest
Deal found 7/24![Southwest logo]()
$247
This Southwest deal was found by Cheapflights users on 7/27. 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.
Fri 11/67:55 pm
STL
- PIT
Nonstop1h 35m
Southwest
Mon 11/96:50 am
PIT
- STL
Nonstop2h 00m
Southwest
Deal found 7/27![Southwest logo]()
$251
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 July 28, 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 July 28, 2026.
This Delta deal was found by Cheapflights users on 7/28. 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 8/1811:00 am
STL
- PIT
1 stop5h 14m
Delta
Sat 8/225:50 am
PIT
- STL
1 stop7h 06m
Delta
Deal found 7/28![Delta logo]()
$217
This Southwest deal was found by Cheapflights users on 7/26. 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 8/207:35 pm
STL
- PIT
Nonstop1h 40m
Southwest
Mon 8/247:20 pm
PIT
- STL
Nonstop1h 40m
Southwest
Deal found 7/26![Southwest logo]()
$227
This United Airlines deal was found by Cheapflights users on 7/25. 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.
Sat 8/298:00 am
STL
- PIT
1 stop4h 15m
United Airlines
Sat 9/58:45 am
PIT
- STL
1 stop4h 18m
United Airlines
Deal found 7/25![United Airlines logo]()
$232
This Southwest deal was found by Cheapflights users on 7/27. 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 9/296:50 pm
STL
- PIT
Nonstop1h 40m
Southwest
Thu 10/18:20 pm
PIT
- STL
Nonstop1h 40m
Southwest
Deal found 7/27![Southwest logo]()
$227
This United Airlines deal was found by Cheapflights users on 7/25. 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.
Mon 8/248:00 am
STL
- PIT
1 stop4h 15m
United Airlines
Wed 8/266:09 pm
PIT
- STL
1 stop4h 08m
United Airlines
Deal found 7/25![United Airlines logo]()
$232
This Delta deal was found by Cheapflights users on 7/24. 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.
Sat 9/126:40 am
STL
- PIT
1 stop3h 39m
Delta
Sat 9/195:15 pm
PIT
- STL
1 stop4h 20m
Delta
Deal found 7/24![Delta logo]()
$237
This Southwest deal was found by Cheapflights users on 7/27. 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 9/36:05 am
STL
- PIT
1 stop5h 05m
Southwest
Mon 9/77:00 am
PIT
- STL
Nonstop1h 45m
Southwest
Deal found 7/27![Southwest logo]()
$237
This United Airlines deal was found by Cheapflights users on 7/24. 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 9/38:00 am
STL
- PIT
1 stop4h 15m
United Airlines
Mon 9/77:50 pm
PIT
- STL
1 stop4h 11m
United Airlines
Deal found 7/24![United Airlines logo]()
$242
This Delta deal was found by Cheapflights users on 7/28. 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 10/26:54 pm
STL
- PIT
1 stop4h 37m
Delta
Sun 10/45:50 am
PIT
- STL
1 stop6h 05m
Delta
Deal found 7/28![Delta logo]()
$257
This Southwest deal was found by Cheapflights users on 7/25. 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 8/245:10 am
STL
- PIT
1 stop7h 15m
Southwest
Wed 8/268:40 am
PIT
- STL
2 stops8h 45m
Southwest
Deal found 7/25![Southwest logo]()
$252
Last-minute flights from St. Louis to PittsburghDiscover last-minute flight deals from St. Louis to Pittsburgh. Data last updated July 28, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Pittsburgh. Data last updated July 28, 2026 and is based on user searches.
This Southwest deal was found by Cheapflights users on 7/27. 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 8/186:50 pm
STL
- PIT
Nonstop1h 35m
Southwest
Sat 8/226:50 am
PIT
- STL
Nonstop1h 40m
Southwest
Deal found 7/27![Southwest logo]()
$197
This Delta deal was found by Cheapflights users on 7/28. 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 8/1811:00 am
STL
- PIT
1 stop5h 14m
Delta
Sat 8/225:50 am
PIT
- STL
1 stop7h 06m
Delta
Deal found 7/28![Delta logo]()
$217
This Southwest deal was found by Cheapflights users on 7/25. 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 8/248:30 am
STL
- PIT
2 stops8h 25m
Southwest
Wed 8/268:40 am
PIT
- STL
2 stops8h 45m
Southwest
Deal found 7/25![Southwest logo]()
$257
This Delta deal was found by Cheapflights users on 7/25. 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 8/282:10 pm
STL
- PIT
1 stop3h 52m
Delta
Thu 9/35:50 am
PIT
- STL
1 stop6h 56m
Delta
Deal found 7/25![Delta logo]()
$261
This Southwest deal was found by Cheapflights users on 7/25. 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 8/2910:15 am
STL
- PIT
Nonstop1h 40m
Southwest
Tue 9/16:40 am
PIT
- STL
Nonstop1h 40m
Southwest
Deal found 7/25![Southwest logo]()
$227
This United Airlines deal was found by Cheapflights users on 7/25. 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.
Sat 8/298:00 am
STL
- PIT
1 stop4h 15m
United Airlines
Sat 9/58:45 am
PIT
- STL
1 stop4h 18m
United Airlines
Deal found 7/25![United Airlines logo]()
$232
This Delta deal was found by Cheapflights users on 7/25. 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.
Sat 8/295:33 pm
STL
- PIT
1 stop5h 01m
Delta
Thu 9/312:50 pm
PIT
- STL
1 stop6h 03m
Delta
Deal found 7/25![Delta logo]()
$237
This Southwest deal was found by Cheapflights users on 7/28. 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 8/303:30 pm
STL
- PIT
1 stop3h 55m
Southwest
Thu 9/37:00 am
PIT
- STL
Nonstop1h 45m
Southwest
Deal found 7/28![Southwest logo]()
$255
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 July 28, 2026.
Search for one-way flight options from St. Louis to Pittsburgh. Find affordable one-way fares based on user searches. Data last updated July 28, 2026.
This Kiwi.com deal was found by Cheapflights users on 7/24. 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 10/2110:35 am
STL
- PIT
2 stops29h 10m
Multiple Airlines
Deal found 7/24![Multiple Airlines logo]()
$90
This Southwest deal was found by Cheapflights users on 7/28. 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 8/277:35 pm
STL
- PIT
Nonstop1h 40m
Southwest
Deal found 7/28![Southwest logo]()
$99
This Kiwi.com deal was found by Cheapflights users on 7/26. 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 10/2210:35 am
STL
- PIT
2 stops9h 50m
Multiple Airlines
Deal found 7/26![Multiple Airlines logo]()
$106
This Kiwi.com deal was found by Cheapflights users on 7/28. 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 10/2910:35 am
STL
- PIT
2 stops9h 50m
Multiple Airlines
Deal found 7/28![Multiple Airlines logo]()
$107
This Southwest deal was found by Cheapflights users on 7/24. 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 1/2310:45 am
STL
- PIT
Nonstop1h 35m
Southwest
Deal found 7/24![Southwest logo]()
$110
This Kiwi.com deal was found by Cheapflights users on 7/28. 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 9/302:29 pm
STL
- PIT
2 stops29h 56m
Multiple Airlines
Deal found 7/28![Multiple Airlines logo]()
$111
This Southwest deal was found by Cheapflights users on 7/27. 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 8/2010:30 am
STL
- PIT
Nonstop1h 40m
Southwest
Deal found 7/27![Southwest logo]()
$114
This Delta deal was found by Cheapflights users on 7/27. 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.
Sat 10/2410:31 am
STL
- PIT
1 stop3h 47m
Delta
Deal found 7/27![Delta logo]()
$119
This Kiwi.com deal was found by Cheapflights users on 7/28. 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.
Sun 8/306:17 pm
STL
- PIT
2 stops40h 04m
Multiple Airlines
Deal found 7/28![Multiple Airlines logo]()
$123
This Kiwi.com deal was found by Cheapflights users on 7/25. 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.
Mon 8/246:17 pm
STL
- PIT
2 stops16h 04m
Multiple Airlines
Deal found 7/25![Multiple Airlines logo]()
$125
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 July 28, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $197 (Southwest) |
One-way from | $90 (Kiwi.com) |
Popular in | January |
Cheapest in | December |
Average price | $336 |
Good round-trip deal | $309 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 July 28, 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 8/18
11:00 am-5:14 pm
1 stop5h 14m
Pittsburgh
Sat 8/22
5:50 am-11:56 am
1 stop7h 06m
$217
Quickest round-trip
St. LouisPittsburgh
STL - PIT
STLPIT
Lambert-St Louis
Thu 8/20
7:35 pm-10:15 pm
Nonstop1h 40m
Pittsburgh
Mon 8/24
7:20 pm-8:00 pm
Nonstop1h 40m
$227
St. LouisPittsburgh
STL - PIT
STLPIT
Lambert-St Louis
Tue 9/29
6:50 pm-9:30 pm
Nonstop1h 40m
Pittsburgh
Thu 10/1
8:20 pm-9:00 pm
Nonstop1h 40m
$227
St. LouisPittsburgh
STL - PIT
STLPIT
Lambert-St Louis
Sat 8/29
8:00 am-1:15 pm
1 stop4h 15m
Pittsburgh
Sat 9/5
8:45 am-12:03 pm
1 stop4h 18m
$232
St. LouisPittsburgh
STL - PIT
STLPIT
Lambert-St Louis
Mon 8/24
8:00 am-1:15 pm
1 stop4h 15m
Pittsburgh
Wed 8/26
6:09 pm-9:17 pm
1 stop4h 08m
$232
St. LouisPittsburgh
STL - PIT
STLPIT
Lambert-St Louis
Sat 9/12
6:40 am-11:19 am
1 stop3h 39m
Pittsburgh
Sat 9/19
5:15 pm-8:35 pm
1 stop4h 20m
$237
St. LouisPittsburgh
STL - PIT
STLPIT
Lambert-St Louis
Thu 9/3
6:05 am-12:10 pm
1 stop5h 05m
Pittsburgh
Mon 9/7
7:00 am-7:45 am
Nonstop1h 45m
$237
St. LouisPittsburgh
STL - PIT
STLPIT
Lambert-St Louis
Thu 9/3
8:00 am-1:15 pm
1 stop4h 15m
Pittsburgh
Mon 9/7
7:50 pm-11:01 pm
1 stop4h 11m
$242
St. LouisPittsburgh
STL - PIT
STLPIT
Lambert-St Louis
Mon 8/24
5:10 am-1:25 pm
1 stop7h 15m
Pittsburgh
Wed 8/26
8:40 am-4:25 pm
2 stops8h 45m
$252
St. LouisPittsburgh
STL - PIT
STLPIT
Lambert-St Louis
Fri 10/2
6:54 pm-12:31 am
1 stop4h 37m
Pittsburgh
Sun 10/4
5:50 am-10:55 am
1 stop6h 05m
$257
Showing 1-10 of 20 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 July.
| 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 January is currently the most expensive (average of $437). 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 July 28, 2026.
It’s typically best to fly out from St. Louis to Pittsburgh in the afternoon. Doing so could potentially save you 33% on the flight price compared to flying at noon, 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 July 28, 2026.
Read through reviews of airlines operating flights from St. Louis to Pittsburgh, such as Southwest,Delta, andUnited Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Crew
8.6
Entertainment
7.5
Food
7.0
Overall
8.0
Comfort
8.0
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Crew
8.6
Entertainment
7.5
Food
7.0
Overall
8.0
Comfort
8.0
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Crew
8.6
Entertainment
7.5
Food
7.0
Overall
8.0
Comfort
8.0
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Crew
8.6
Entertainment
7.5
Food
7.0
Overall
8.0
Comfort
8.0
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Crew
8.6
Entertainment
7.5
Food
7.0
Overall
8.0
Comfort
8.0
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
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 locationsMonroeville
Washington
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St. Louis and Pittsburgh flights
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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 2,558,603 searches. Data last updated July 28, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$168 | Average$396 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$196 | Average$314 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$231 | Average$353 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$341 | Average$436 | FlexibilityNo cancel fee | On-timeN/A |