🇺🇸 PIT
Pittsburgh
572 mi
STL 🇺🇸
St Louis

Pittsburgh to St Louis Flights

Pittsburgh International Airport St. Louis Lambert International Airport 2 airlines

Get Notified About Route Changes

Track up to 3 airports free. Weekly alerts when airlines add or remove routes.

Sign Up Free

The Pittsburgh to St Louis route connects Pittsburgh International Airport (PIT) in US with St. Louis Lambert International Airport (STL) in US. This short-haul flight covers approximately 572 miles (921 km) with a typical flight time of 1h 21m. This route is served by 2 airlines: Southwest, UAL. AirportRoutes has tracked 7 unique flight numbers on this route.

Search tickets for this route

Compare flight prices across hundreds of booking sites

Search PIT → STL flights

Opens a live price search — just pick your dates

Departure Airport

Pittsburgh International Airport

ICAO Code:
KPIT
IATA Code:
PIT
City:
🇺🇸 Pittsburgh
Country:
US
Elevation:
1203 ft

Destination Airport

St. Louis Lambert International Airport

ICAO Code:
KSTL
IATA Code:
STL
City:
🇺🇸 St Louis
Country:
US
Elevation:
618 ft

2

Operators

7

Tracked Flights

572

Miles

1h 21m

Flight Duration

Route Map

Operating Airlines

Airline ICAO IATA
Southwest SWA WN
United UAL UA

Flight Schedule Pattern

Day Flights Observed Frequency Activity
Monday 3 12%
Tuesday 2 8%
Wednesday 3 12%
Thursday 2 8%
Friday 3 12%
Saturday 5 20%
Sunday 7 28%

Pattern Analysis

7 Tracked Flights:
Data Points: 25
API observations used to build this analysis
Weekdays: 13 flights
Weekend: 12 flights
Business Route More active on weekdays

All Flight Routes

2 Routes
Note: This table shows aggregated route data by airline. Each airline may operate multiple daily flights at different times. See the "Spotted Departure Times" section below for all observed departure times.
Airline Flight Numbers Aircraft Type Typical Time Days Active Last Seen Status
Southwest
SWA / WN
B737 06:55 6:55 AM (Representative)
M T W T F S S
Jun 18, 2026 Active
United
UAL / UA
B39M 22:40 10:40 PM (Representative)
M T W T F S S
Jun 18, 2026 Active
Total Routes: 2
Active Routes: 2
Unique Airlines: 2
Aircraft Types: 2

Spotted Departure Times

Departure Time Operator ICAO IATA
06:55 6:55 AM Southwest SWA WN
22:40 10:40 PM United UAL UA

Time Information

Times are shown in the departure airport's local timezone (KPIT - America/New_York).

Total Departure Times: 2
Time Range:
06:55 - 22:40
These are typical departure times observed from actual flights. Times may vary by season and schedule changes.