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Cheap flights from Philadelphia to St Louis

41 nonstop flights a week, 4 of them today. Operated by 3 airlines, about 2h 36m in the air, 808 mi (1,301 km). Tickets from $320.

Flights from Philadelphia to St Louis

Pick a departure date to see flights and seller prices

We search agencies and airlines for your day: nonstop and connecting flights, baggage, departure and arrival times.

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Best fares from Philadelphia to St Louis

Lowest one-way prices found by recent searches for the next 120 days; press a card to search that date

Cheapest month November 2026 tickets from $320

Philadelphia to St Louis at a glance

flight time, from 2h 20m to 5h 3m
2h 36m
straight-line distance
808 mi (1,301 km)
flights a week
41
flights today
4
first and last departure
05:00 - 19:30
lowest price
$320
airlines
3

Philadelphia to St Louis flight schedule

41 flights a week, 4 today, 69 seasonal or one-off. Departure and arrival times are local.

FlightDepartsArrivesDurationDaysAircraft
WN 3375
Southwest Airlines
05:00 Philadelphia International, terminal E
06:30 Lambert-St. Louis International, terminal 2
2h 30m
Sat
Boeing 737-800
WN 3375
Southwest Airlines
06:00 Philadelphia International, terminal E
07:45 Lambert-St. Louis International, terminal 2
2h 45m
Mon, Tue, Wed, Thu, Fri, Sun
Boeing 737
WN 3375
Southwest Airlines
06:15 Philadelphia International, terminal E
07:55 Lambert-St. Louis International, terminal 2
2h 40m
Sat
Boeing 737-800
AA 5334
American Airlines
10:30 Philadelphia International, terminal F
12:21 Lambert-St. Louis International, terminal 1
2h 51m
Sat
Canadair Regional Jet 900
AA 4796
American Airlines
10:55 Philadelphia International
12:43 Lambert-St. Louis International, terminal 1
2h 48m
Daily
Embraer EMB 175
AA 5334
American Airlines
11:00 Philadelphia International, terminal F
12:51 Lambert-St. Louis International, terminal 1
2h 51m
Mon, Thu, Fri, Sun
Canadair Regional Jet 900
WN 1424
Southwest Airlines
14:45 Philadelphia International, terminal E
16:20 Lambert-St. Louis International, terminal 2
2h 35m
Mon, Tue, Wed, Thu
WN 2704
Southwest Airlines
14:45 Philadelphia International, terminal E
16:10 Lambert-St. Louis International, terminal 2
2h 25m
Sat
Boeing 737
AA 4651
American Airlines
18:40 Philadelphia International
20:26 Lambert-St. Louis International, terminal 1
2h 46m
Daily
Embraer EMB 175
AA 5285
American Airlines
18:40 Philadelphia International, terminal F
20:33 Lambert-St. Louis International, terminal 1
2h 53m
Mon, Thu, Fri, Sat, Sun
Canadair Regional Jet 900
WN 3364
Southwest Airlines
19:25 Philadelphia International, terminal E
21:00 Lambert-St. Louis International, terminal 2
2h 35m
Mon, Thu, Fri, Sun
Boeing 737-800
WN 1900
Southwest Airlines
19:30 Philadelphia International, terminal E
21:05 Lambert-St. Louis International, terminal 2
2h 35m
Sat
Boeing 737

Seasonal and one-off flights

Not operating in the next two weeks. The first of them is on 24 November.

FlightDepartsArrivesDurationDaysAircraft
WN 3375
Southwest Airlines
05:25 Philadelphia International, terminal E
06:55 Lambert-St. Louis International, terminal 2
2h 30m
Seasonal
Boeing 737
WN 554
Southwest Airlines
16:20 Philadelphia International, terminal E
17:55 Lambert-St. Louis International, terminal 2
2h 35m
Seasonal
WN 3375
Southwest Airlines
05:30 Philadelphia International, terminal E
07:05 Lambert-St. Louis International, terminal 2
2h 35m
Seasonal
Boeing 737
AA 5285
American Airlines
20:06 Philadelphia International, terminal F
21:55 Lambert-St. Louis International, terminal 1
2h 49m
Seasonal
Canadair Regional Jet 900
WN 3375
Southwest Airlines
05:40 Philadelphia International, terminal E
07:15 Lambert-St. Louis International, terminal 2
2h 35m
Seasonal
AA 5334
American Airlines
09:27 Philadelphia International, terminal F
11:18 Lambert-St. Louis International, terminal 1
2h 51m
Seasonal
Canadair Regional Jet 900
WN 3356
Southwest Airlines
12:10 Philadelphia International, terminal E
13:40 Lambert-St. Louis International, terminal 2
2h 30m
Seasonal
Boeing 737-800
AA 5645
American Airlines
15:48 Philadelphia International, terminal F
17:39 Lambert-St. Louis International, terminal 1
2h 51m
Seasonal
Canadair Regional Jet 900
WN 3505
Southwest Airlines
20:00 Philadelphia International, terminal E
21:30 Lambert-St. Louis International, terminal 2
2h 30m
Seasonal
AA 5285
American Airlines
22:05 Philadelphia International, terminal F
23:56 Lambert-St. Louis International, terminal 1
2h 51m
Seasonal
Canadair Regional Jet 900
UA 4427
United Airlines
06:00 Philadelphia International, terminal D
10:03 Lambert-St. Louis International, terminal 1
5h 3m
Seasonal
AA 5477
American Airlines
10:46 Philadelphia International, terminal F
12:36 Lambert-St. Louis International, terminal 1
2h 50m
Seasonal
Canadair Regional Jet 900
AA 5521
American Airlines
21:20 Philadelphia International, terminal F
23:10 Lambert-St. Louis International, terminal 1
2h 50m
Seasonal
Canadair reg jet 700
WN 4468
Southwest Airlines
18:15 Philadelphia International, terminal E
19:45 Lambert-St. Louis International, terminal 2
2h 30m
Seasonal
Boeing 737
AA 5023
American Airlines
21:20 Philadelphia International, terminal F
23:10 Lambert-St. Louis International, terminal 1
2h 50m
Seasonal
Canadair reg jet 700
AA 4651
American Airlines
20:40 Philadelphia International
22:43 Lambert-St. Louis International, terminal 1
3h 3m
Seasonal
Embraer EMB 175
AA 5105
American Airlines
08:45 Philadelphia International, terminal F
10:29 Lambert-St. Louis International, terminal 1
2h 44m
Seasonal
Canadair reg jet 700
AA 5536
American Airlines
20:55 Philadelphia International, terminal F
22:42 Lambert-St. Louis International, terminal 1
2h 47m
Seasonal
Canadair reg jet 700
AA 5105
American Airlines
10:05 Philadelphia International, terminal F
11:49 Lambert-St. Louis International, terminal 1
2h 44m
Seasonal
Canadair reg jet 700
AA 5536
American Airlines
21:39 Philadelphia International, terminal F
23:26 Lambert-St. Louis International, terminal 1
2h 47m
Seasonal
Canadair reg jet 700
AA 5105
American Airlines
10:31 Philadelphia International, terminal F
12:19 Lambert-St. Louis International, terminal 1
2h 48m
Seasonal
Canadair Regional Jet 900
AA 5536
American Airlines
21:48 Philadelphia International, terminal F
23:35 Lambert-St. Louis International, terminal 1
2h 47m
Seasonal
Canadair reg jet 700
AA 5536
American Airlines
21:44 Philadelphia International, terminal F
23:31 Lambert-St. Louis International, terminal 1
2h 47m
Seasonal
Canadair reg jet 700
AA 5105
American Airlines
10:19 Philadelphia International, terminal F
12:03 Lambert-St. Louis International, terminal 1
2h 44m
Seasonal
Canadair reg jet 700
AA 5105
American Airlines
10:30 Philadelphia International, terminal F
12:18 Lambert-St. Louis International, terminal 1
2h 48m
Seasonal
Canadair Regional Jet 900
AA 5105
American Airlines
11:19 Philadelphia International, terminal F
13:03 Lambert-St. Louis International, terminal 1
2h 44m
Seasonal
Canadair reg jet 700
AA 5536
American Airlines
18:55 Philadelphia International, terminal F
20:44 Lambert-St. Louis International, terminal 1
2h 49m
Seasonal
Canadair reg jet 700
UA 4427
United Airlines
06:15 Philadelphia International, terminal D
10:08 Lambert-St. Louis International, terminal 1
4h 53m
Seasonal
WN 4553
Southwest Airlines
06:10 Philadelphia International, terminal E
07:45 Lambert-St. Louis International, terminal 2
2h 35m
Seasonal
AA 5380
American Airlines
10:33 Philadelphia International, terminal F
12:23 Lambert-St. Louis International, terminal 1
2h 50m
Seasonal
Canadair Regional Jet 900
WN 3185
Southwest Airlines
13:15 Philadelphia International, terminal E
14:45 Lambert-St. Louis International, terminal 2
2h 30m
Seasonal
Boeing 737-800
AA 5224
American Airlines
18:40 Philadelphia International, terminal F
20:31 Lambert-St. Louis International, terminal 1
2h 51m
Seasonal
Canadair Regional Jet 900
WN 4553
Southwest Airlines
06:00 Philadelphia International, terminal E
07:30 Lambert-St. Louis International, terminal 2
2h 30m
Seasonal
Boeing 737
WN 3079
Southwest Airlines
17:30 Philadelphia International, terminal E
19:05 Lambert-St. Louis International, terminal 2
2h 35m
Seasonal
Boeing 737
WN 4553
Southwest Airlines
06:05 Philadelphia International, terminal E
07:40 Lambert-St. Louis International, terminal 2
2h 35m
Seasonal
Boeing 737
AA 5623
American Airlines
10:40 Philadelphia International, terminal F
12:24 Lambert-St. Louis International, terminal 1
2h 44m
Seasonal
Canadair Regional Jet 900
WN 3079
Southwest Airlines
14:35 Philadelphia International, terminal E
16:15 Lambert-St. Louis International, terminal 2
2h 40m
Seasonal
AA 3162
American Airlines
19:26 Philadelphia International
21:09 Lambert-St. Louis International, terminal 1
2h 43m
Seasonal
Airbus A319
WN 3079
Southwest Airlines
17:35 Philadelphia International, terminal E
19:10 Lambert-St. Louis International, terminal 2
2h 35m
Seasonal
Boeing 737
WN 334
Southwest Airlines
06:20 Philadelphia International, terminal E
07:50 Lambert-St. Louis International, terminal 2
2h 30m
Seasonal
Boeing 737-800
WN 3310
Southwest Airlines
19:15 Philadelphia International, terminal E
20:55 Lambert-St. Louis International, terminal 2
2h 40m
Seasonal
Boeing 737
WN 334
Southwest Airlines
05:50 Philadelphia International, terminal E
07:20 Lambert-St. Louis International, terminal 2
2h 30m
Seasonal
Boeing 737-800
WN 3280
Southwest Airlines
05:50 Philadelphia International, terminal E
07:20 Lambert-St. Louis International, terminal 2
2h 30m
Seasonal
WN 1195
Southwest Airlines
19:15 Philadelphia International, terminal E
20:55 Lambert-St. Louis International, terminal 2
2h 40m
Seasonal
Boeing 737
WN 582
Southwest Airlines
05:25 Philadelphia International, terminal E
06:55 Lambert-St. Louis International, terminal 2
2h 30m
Seasonal
Boeing 737
WN 725
Southwest Airlines
13:55 Philadelphia International, terminal E
15:25 Lambert-St. Louis International, terminal 2
2h 30m
Seasonal
WN 3286
Southwest Airlines
05:40 Philadelphia International, terminal E
07:05 Lambert-St. Louis International, terminal 2
2h 25m
Seasonal
Boeing 737
AA 3130
American Airlines
11:06 Philadelphia International
12:48 Lambert-St. Louis International, terminal 1
2h 42m
Seasonal
Airbus A319
WN 2900
Southwest Airlines
13:00 Philadelphia International, terminal E
14:30 Lambert-St. Louis International, terminal 2
2h 30m
Seasonal
Boeing 737
AA 1368
American Airlines
17:40 Philadelphia International
19:27 Lambert-St. Louis International, terminal 1
2h 47m
Seasonal
Airbus A319
WN 3286
Southwest Airlines
06:00 Philadelphia International, terminal E
07:25 Lambert-St. Louis International, terminal 2
2h 25m
Seasonal
Boeing 737
WN 2744
Southwest Airlines
19:25 Philadelphia International, terminal E
20:55 Lambert-St. Louis International, terminal 2
2h 30m
Seasonal
Boeing 737
WN 3557
Southwest Airlines
07:55 Philadelphia International, terminal E
09:20 Lambert-St. Louis International, terminal 2
2h 25m
Seasonal
WN 3356
Southwest Airlines
13:50 Philadelphia International, terminal E
15:15 Lambert-St. Louis International, terminal 2
2h 25m
Seasonal
Boeing 737-800
WN 3550
Southwest Airlines
19:20 Philadelphia International, terminal E
20:50 Lambert-St. Louis International, terminal 2
2h 30m
Seasonal
AA 1981
American Airlines
09:01 Philadelphia International
10:37 Lambert-St. Louis International, terminal 1
2h 36m
Seasonal
Airbus A319
AA 2196
American Airlines
15:27 Philadelphia International
17:05 Lambert-St. Louis International, terminal 1
2h 38m
Seasonal
Airbus A319
AA 1368
American Airlines
21:59 Philadelphia International
23:34 Lambert-St. Louis International, terminal 1
2h 35m
Seasonal
Airbus A319
WN 3122
Southwest Airlines
05:15 Philadelphia International, terminal E
06:35 Lambert-St. Louis International, terminal 2
2h 20m
Seasonal
Boeing 737
WN 3123
Southwest Airlines
19:25 Philadelphia International, terminal E
20:55 Lambert-St. Louis International, terminal 2
2h 30m
Seasonal
Boeing 737
WN 2860
Southwest Airlines
14:10 Philadelphia International, terminal E
15:35 Lambert-St. Louis International, terminal 2
2h 25m
Seasonal
Boeing 737
WN 3122
Southwest Airlines
05:45 Philadelphia International, terminal E
07:05 Lambert-St. Louis International, terminal 2
2h 20m
Seasonal
Boeing 737
WN 3122
Southwest Airlines
05:40 Philadelphia International, terminal E
07:00 Lambert-St. Louis International, terminal 2
2h 20m
Seasonal
WN 3123
Southwest Airlines
17:00 Philadelphia International, terminal E
18:30 Lambert-St. Louis International, terminal 2
2h 30m
Seasonal
AA 2352
American Airlines
09:03 Philadelphia International
10:38 Lambert-St. Louis International, terminal 1
2h 35m
Seasonal
Airbus A319
AA 2196
American Airlines
15:30 Philadelphia International
17:08 Lambert-St. Louis International, terminal 1
2h 38m
Seasonal
Airbus A319
AA 5082
American Airlines
09:18 Philadelphia International, terminal F
10:52 Lambert-St. Louis International, terminal 1
2h 34m
Seasonal
Canadair Regional Jet 900
AA 4411
American Airlines
15:30 Philadelphia International
17:05 Lambert-St. Louis International, terminal 1
2h 35m
Seasonal
Embraer EMB 175
AA 4498
American Airlines
22:01 Philadelphia International
23:37 Lambert-St. Louis International, terminal 1
2h 36m
Seasonal
Embraer EMB 175

Days of the week are taken from the schedule for the next 14 days; schedules change by season. St Louis is 1 hour behind Philadelphia. The search shows seat availability and the price for your date.

Airlines flying Philadelphia to St Louis

Flights a week by schedule and the cheapest nonstop fare of each airline found by recent searches

American Airlines24 a week Southwest Airlines17 a week United Airlinesfrom 1 December

Airports

Where flights from Philadelphia to St Louis depart and land

Departure from Philadelphia

Philadelphia International PHL

41 flights a week, terminals D, E, F, 7 mi (11 km) from the city centre

About the airport

Arrival in St Louis

Lambert-St. Louis International STL

41 flights a week, terminals 1, 2, 12 mi (19 km) from the city centre

About the airport

Frequently asked questions

How long is the flight from Philadelphia to St Louis?
A nonstop flight takes 2 hours 36 minutes on average, from 2h 20m to 5h 3m depending on the flight.
How far is St Louis from Philadelphia?
808 mi (1,301 km) in a straight line between the cities.
Which airlines fly nonstop from Philadelphia to St Louis?
American Airlines (24 a week), Southwest Airlines (17 a week) and United Airlines.
How many flights a day are there from Philadelphia to St Louis?
4 flights today and 41 a week, about 5.9 a day on average.
When are the first and last flights from Philadelphia to St Louis?
The first departure is at 05:00 (WN3375), the last at 19:30 (WN1900). Local time.
What is the time difference between Philadelphia and St Louis?
St Louis is 1 hour behind Philadelphia. Schedule times on this page are local to each airport.
Which Philadelphia airport do flights to St Louis leave from?
Philadelphia International (41 a week).