Take off on cheap flights from St Louis to Philadelphia, your adventure starts now!

Find cheap airline tickets from St Louis to Philadelphia by date

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  • July 2018
  • August 2018
  • September 2018
  • October 2018
  • November 2018
  • December 2018
  • January 2019
  • February 2019
  • March 2019
  • April 2019
  • May 2019
  • June 2019
  • any
  • July 2018
  • August 2018
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  • October 2018
  • November 2018
  • December 2018
  • January 2019
  • February 2019
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  • price
  • month of departure
  • month of return
$252
outward: Oct 3, 2018
11:07p STL » 3:29p PHL
Frontier Airlines 1 stop (16h22m)
inbound: Oct 11, 2018
12:49a PHL » 3:36p STL
Frontier Airlines 1 stop (14h47m)
$252
outward: Oct 3, 2018
11:07p STL » 3:29p PHL
Frontier Airlines 1 stop (16h22m)
inbound: Oct 10, 2018
1:00p PHL » 3:36p STL
Frontier Airlines 1 stop (26h36m)
$252
outward: Oct 3, 2018
11:07p STL » 3:29p PHL
Frontier Airlines 1 stop (16h22m)
inbound: Oct 10, 2018
1:00p PHL » 3:36p STL
Frontier Airlines 1 stop (26h36m)
$272
outward: Oct 3, 2018
11:07p STL » 7:17p PHL
Unknown Company 1 stop (20h10m)
inbound: Oct 10, 2018
10:04p PHL » 3:36p STL
Frontier Airlines 1 stop (17h32m)
$286
outward: Oct 3, 2018
11:09p STL » 7:17p PHL
Unknown Company 1 stop (20h08m)
inbound: Oct 10, 2018
8:11p PHL » 3:35p STL
Unknown Company 1 stop (19h24m)
$289
outward: Oct 3, 2018
11:09p STL » 7:17p PHL
Unknown Company 1 stop (20h08m)
inbound: Oct 10, 2018
8:11p PHL » 3:35p STL
Unknown Company 1 stop (19h24m)
$289
outward: Oct 3, 2018
4:36p STL » 4:25a TTN
Frontier Airlines 1 stop (11h49m)
inbound: Oct 10, 2018
12:00p TTN » 10:07p STL
Frontier Airlines 1 stop (10h07m)
$290
outward: Sep 16, 2018
11:07p STL » 3:14p PHL
Frontier Airlines 1 stop (16h07m)
inbound: Sep 20, 2018
10:14p PHL » 3:35p STL
Frontier Airlines 1 stop (17h21m)
$291
outward: Oct 3, 2018
4:36p STL » 4:25a TTN
Frontier Airlines 1 stop (11h49m)
inbound: Oct 10, 2018
12:00p TTN » 10:07p STL
Frontier Airlines 1 stop (10h07m)
$291
outward: Oct 3, 2018
4:35p STL » 4:29a TTN
Frontier Airlines 1 stop (11h54m)
inbound: Oct 10, 2018
12:00p TTN » 10:52p STL
Frontier Airlines 1 stop (10h52m)
$291
outward: Oct 4, 2018
12:55a STL » 1:30p PHL
Unknown Company 1 stop (12h35m)
inbound: Oct 11, 2018
12:49a PHL » 3:36p STL
Frontier Airlines 1 stop (14h47m)
$291
outward: Oct 4, 2018
12:55a STL » 1:30p PHL
Unknown Company 1 stop (12h35m)
inbound: Oct 11, 2018
12:49a PHL » 3:36p STL
Frontier Airlines 1 stop (14h47m)
$292
outward: Oct 3, 2018
4:36p STL » 4:25a TTN
Frontier Airlines 1 stop (11h49m)
inbound: Oct 10, 2018
12:00p TTN » 10:07p STL
Frontier Airlines 1 stop (10h07m)
$293
outward: Oct 3, 2018
4:36p STL » 4:25a TTN
Frontier Airlines 1 stop (11h49m)
inbound: Oct 10, 2018
12:00p TTN » 10:48p STL
Frontier Airlines 1 stop (10h48m)
$293
outward: Oct 3, 2018
4:36p STL » 4:25a TTN
Frontier Airlines 1 stop (11h49m)
inbound: Oct 10, 2018
12:00p TTN » 10:48p STL
Frontier Airlines 1 stop (10h48m)
$294
outward: Oct 3, 2018
4:35p STL » 4:29a TTN
Frontier Airlines 1 stop (11h54m)
inbound: Oct 10, 2018
12:00p TTN » 10:52p STL
Frontier Airlines 1 stop (10h52m)
$357
outward: Jul 24, 2018
11:00p STL » 6:10a PHL
Frontier Airlines 1 stop (7h10m)
inbound: Jul 31, 2018
7:50p PHL » 3:33p STL
Unknown Company 1 stop (19h43m)
$360
outward: Sep 1, 2018
1:03p STL » 3:18p PHL
American Airlines direct (2h15m)
inbound: Sep 3, 2018
5:01p PHL » 7:29p STL
American Airlines direct (2h28m)
$369
outward: Aug 31, 2018
2:20p STL » 7:18p PHL
Unknown Airline 1 stop (4h58m)
inbound: Sep 4, 2018
1:08a PHL » 6:41a STL
Unknown Airline 1 stop (5h33m)
Return
Departure
Choose when you'd like to depart to Philadelphia (USA):
Find the cheapest St Louis Philadelphia flight by browsing the dates below to find alternative flight prices found in the last days. To launch a flight search for St Louis - Philadelphia with these new dates, click on an offer. Want to depart from another city? Choose: Las Vegas - Philadelphia New York - Philadelphia London - Philadelphia Miami - Philadelphia Chicago - Philadelphia San Francisco - Philadelphia See more routes

Airlines operating flights from St Louis to Philadelphia

  • any
  • July 2018
  • August 2018
  • September 2018
  • October 2018
  • November 2018
  • December 2018
  • January 2019
  • February 2019
  • March 2019
  • April 2019
  • May 2019
  • June 2019
  • all
  • Frontier Airlines
Frontier Airlines
outbound: Sep 16, 2018
Frontier Airlines 1 stop
return: Sep 20, 2018
Frontier Airlines 1 stop

Travel tips for flights St Louis - Philadelphia

Average flight duration: 16h54m (flight with stopovers)

  • Arrival city:
  • Philadelphia, USA
  • Airport(s):
  • Philadelphia International Airport (PHL)
  • Northeast Philadelphia Airport (PNE)
  • Local time:
  • Jul 21, 2018 6:52 PM, GMT-4
  • Weather:
  • min. 72ºF, max. 81ºF
  • Departure city:
  • St Louis, USA
  • Airport(s):
  • St. Louis Downtown Airport (CPS)
  • Lambert–St. Louis International Airport (STL)
  • MidAmerica St. Louis Airport (BLV)
  • Spirit of St. Louis Airport (SUS)
  • Local time:
  • Jul 21, 2018 5:52 PM, GMT-5
  • Weather:
  • min. 77ºF, max. 81ºF