Southwest Airlines
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United States
Pittsburgh International Airport
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United States
Lambert-Saint Louis International Airport
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Scan through all non-stop flights from Pittsburgh to St. Louis. The full flight schedule below gives an overview of all non-stop flights from PIT to STL, which includes the daily timetable of every operating airline for the upcoming 12 months.
Note: for airline-specific flight schedules, please scroll further down.
St. Louis 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 St. Louis 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 Pittsburgh PIT to St. Louis STL, 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 PIT STL flight schedule.
Flights from PIT to STL are operated 7 times a week, with an average of 1 flight per day. Departure times vary between 06:40 - 20:15. The earliest flight departs at 06:40, the last flight departs at 20:15. 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 Pittsburgh to St. Louis takes 1 hour and 45 minutes. The flight distance between Pittsburgh and St. Louis is 552 miles (or 888 km).
There is 1 airport in St. Louis: Lambert-Saint Louis International Airport (STL).
There are 7 flights per week flying from Pittsburgh to St. Louis (as of March 2026).
1 hour and 45 minutes is the average flight time from Pittsburgh to St. Louis.
The distance from Pittsburgh to St. Louis is 552 miles (888 kilometers).
Southwest Airlines is the only airline flying nonstop from Pittsburgh to St. Louis.
There are no alliances flying direct from Pittsburgh to St. Louis at the moment.
You can fly non-stop in Economy only.
Aircraft types that fly from Pittsburgh to St. Louis:
The earliest flight departs at 06:40 from Pittsburgh and arrives at 07:35 at St. Louis.
The latest flight departs at 20:15 from Pittsburgh and arrives at 21:05 at St. Louis.
552 miles (888 km) · 1h 45m
06:40
07:35
Southwest Airlines
WN 1190
Southwest Airlines
Boeing 757
Y
W
J
F
06:50
07:45
Southwest Airlines
WN 3263
Southwest Airlines
Boeing 737-800 (winglets)
Y
W
J
F
06:50
07:45
Southwest Airlines
WN 3263
Southwest Airlines
Boeing 757
Y
W
J
F
06:50
07:45
Southwest Airlines
WN 3263
Southwest Airlines
Boeing 737 MAX 8
Y
W
J
F
19:05
20:00
Southwest Airlines
WN 1687
Southwest Airlines
Boeing 757
Y
W
J
F
19:40
20:30
Southwest Airlines
WN 3750
Southwest Airlines
Boeing 737 MAX 8
Y
W
J
F
20:05
20:55
Southwest Airlines
WN 1502
Southwest Airlines
Boeing 737 MAX 8
Y
W
J
F
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