Southwest Airlines
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United States
Lambert-Saint Louis International Airport
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United States
Pittsburgh International Airport
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Scan through all non-stop flights from St. Louis to Pittsburgh. The full flight schedule below gives an overview of all non-stop flights from STL to PIT, which includes the daily timetable of every operating airline for the upcoming 12 months.
Note: for airline-specific flight schedules, please scroll further down.
Pittsburgh is a humid subtropical or warm-temperate destination, featuring hot, humid summers with temperatures typically around 30°C (86°F) and mild to cool winters. The region is known for consistent rainfall throughout the year, peaking in summer. The area is known for its vibrant urban energy, diverse landscapes, and numerous outdoor activities.
You can visit Pittsburgh any time of the year, but the best months to explore are from to and from to .
Currently, there is only one airline operating non-stop flights from St. Louis STL to Pittsburgh PIT, which is Southwest Airlines. This section gives an overview of the flight schedules and timetables of every airline with direct flights for this route.
Click an airline below to view their STL PIT flight schedule.
Flights from STL to PIT are operated 7 times a week, with an average of 1 flight per day. Departure times vary between 09:55 - 20:20. The earliest flight departs at 09:55, the last flight departs at 20:20. However, this depends on the date you are flying so please check with the full flight schedule above to see which departure times are available on your preferred date(s) of travel.
On this non-stop route, you can fly in Economy only.
The fastest direct flight from St. Louis to Pittsburgh takes 1 hour and 35 minutes. The flight distance between St. Louis and Pittsburgh is 552 miles (or 888 km).
There is 1 airport in Pittsburgh: Pittsburgh International Airport (PIT).
There are 7 flights per week flying from St. Louis to Pittsburgh (as of March 2026).
1 hour and 35 minutes is the average flight time from St. Louis to Pittsburgh.
The distance from St. Louis to Pittsburgh is 552 miles (888 kilometers).
Southwest Airlines is the only airline flying nonstop from St. Louis to Pittsburgh.
There are no alliances flying direct from St. Louis to Pittsburgh at the moment.
You can fly non-stop in Economy only.
Aircraft types that fly from St. Louis to Pittsburgh:
The earliest flight departs at 09:55 from St. Louis and arrives at 12:30 at Pittsburgh.
The latest flight departs at 20:20 from St. Louis and arrives at 23:00 at Pittsburgh.
552 miles (888 km) · 1h 35m
10:15
12:50
Southwest Airlines
WN 2074
Southwest Airlines
Boeing 757
Y
W
J
F
10:15
12:50
Southwest Airlines
WN 2074
Southwest Airlines
Boeing 737-800 (winglets)
Y
W
J
F
18:45
21:20
Southwest Airlines
WN 2338
Southwest Airlines
Boeing 757
Y
W
J
F
19:40
22:15
Southwest Airlines
WN 2338
Southwest Airlines
Boeing 757
Y
W
J
F
19:50
22:25
Southwest Airlines
WN 2338
Southwest Airlines
Boeing 757
Y
W
J
F
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