SEARCH ONE AND DONE. - Compare hundreds of travel sites at once.
Choose where to book.
Find deals from over 400 airlines worldwide.

Cheap Flights from Philadelphia to St Louis (PHL - STL)

DepartReturn
1 adult
Note: some airlines charge for infants in laps.
The price shown for each flight will be the average for all passengers including any infants.
Choose Sites to Compare vs. KAYAK

Best fares from PHL to STL (Found by others)

Sun Mon Tue Wed Thu Fri Sat
          1 $340 2 $370
3 $360 4 $379 5 $337 6 $330 7 $304 8 $304 9 $372
10 $369 11 $388 12 $277 13 $277 14 $287 15 $345 16 $337
17 $287 18 $277 19 $277 20 $277 21 $277 22 $277 23 $277
24 $284 25
$284
26 $327 27 $277 28 $277 29 $277 30 $277
31 $277            
KAYAK searches hundreds of sites to find the best rate for your next flight from Philadelphia to St Louis. Get the best flight deal for your St Louis trip!
Here's how it works. Search KAYAK for a flight ticket from Philadelphia to St Louis. Sort, filter and compare results on one web page. Then book your plane ticket direct on the airline or travel agent site of your choice!
Direct flights PHL to STL on American Airlines
Flight # Depart PHL Arrive STL Sun Mon Tue Wed Thu Fri Sat Valid Between
4085 7:40 am 9:11 am Sep 2 - Oct 17
4085 7:40 am 9:07 am Jul 31 - Aug 18
4085 7:40 am 9:07 am Aug 3 - Aug 17
4085 7:40 am 9:11 am Aug 24 - Aug 24
4085 7:40 am 9:11 am Sep 7 - Oct 19
4085 7:40 am 9:11 am Aug 19 - Aug 29
4437 9:34 am 11:00 am Jul 31 - Aug 18
4604 9:34 am 11:01 am Sep 1 - Oct 1
4604 9:34 am 11:01 am Aug 31 - Sep 6
4604 9:34 am 11:01 am Aug 23 - Aug 30
4604 9:34 am 11:01 am Aug 19 - Aug 29
4077 12:00 pm 1:25 pm Aug 19 - Oct 31
4077 12:00 pm 1:21 pm Jul 31 - Aug 18
4084 12:00 pm 1:25 pm Sep 6 - Nov 1
4372 1:55 pm 3:21 pm Jul 31 - Aug 18
4602 1:55 pm 3:21 pm Aug 19 - Oct 31
4602 1:55 pm 3:21 pm Aug 31 - Aug 31
4602 1:55 pm 3:21 pm Aug 24 - Aug 24
4602 1:55 pm 3:21 pm Sep 7 - Sep 28
4602 1:55 pm 3:21 pm Aug 2 - Aug 16
4602 1:55 pm 3:21 pm Aug 23 - Nov 1
4575 4:05 pm 5:40 pm Aug 3 - Aug 17
4386 6:45 pm 8:29 pm Jul 31 - Aug 18
4391 6:45 pm 8:26 pm Aug 19 - Oct 30