For quick check-in, verify your airline’s terminal before arriving. Terminals are spread out, and only B and C, and D and E are linked by indoor hallways.
Round-trip from | $220 (Kiwi.com) |
---|---|
One-way from | $81 (Cheapflightsfares) |
Popular in | May |
Cheapest in | August |
Average price | $355 |
Good round-trip deal | $265 or less |
Good one-way deal | $211 or less |
Fly from
Fly to
Route
Depart
Return
Price
PhiladelphiaSt. Louis
PHL - STL
PHLSTL
Philadelphia
dom. 9/28
10:03 pm-1:02 pm
2 stops15h 59m
Lambert-St Louis
sáb. 10/11
7:15 pm-9:32 am
1 stop13h 17m
PhiladelphiaSt. Louis
PHL - STL
PHLSTL
Philadelphia
jue. 2/5
5:05 pm-6:40 pm
Nonstop2h 35m
Lambert-St Louis
mar. 2/17
6:25 am-12:35 pm
1 stop5h 10m
PhiladelphiaSt. Louis
PHL - STL
PHLSTL
Philadelphia
mar. 10/21
6:30 pm-8:00 pm
Nonstop2h 30m
Lambert-St Louis
mar. 10/28
8:15 am-11:20 am
Nonstop2h 05m
PhiladelphiaSt. Louis
PHL - STL
PHLSTL
Philadelphia
mar. 10/14
7:20 am-4:00 pm
1 stop9h 40m
Lambert-St Louis
mar. 10/21
8:15 am-11:20 am
Nonstop2h 05m
PhiladelphiaSt. Louis
PHL - STL
PHLSTL
Philadelphia
mié. 10/8
6:50 am-10:26 am
1 stop4h 36m
Lambert-St Louis
mié. 10/15
1:40 pm-7:47 pm
1 stop5h 07m
PhiladelphiaSt. Louis
PHL - STL
PHLSTL
Philadelphia
mié. 10/8
9:46 am-1:22 pm
1 stop4h 36m
Lambert-St Louis
mar. 10/14
6:14 pm-11:05 pm
1 stop3h 51m
PhiladelphiaSt. Louis
PHL - STL
PHLSTL
Philadelphia
sáb. 10/11
11:15 am-12:50 pm
Nonstop2h 35m
Lambert-St Louis
lun. 10/13
8:15 pm-11:25 pm
Nonstop2h 10m
PhiladelphiaSt. Louis
PHL - STL
PHLSTL
Philadelphia
jue. 11/13
7:40 am-9:10 am
Nonstop2h 30m
Lambert-St Louis
lun. 11/17
12:00 pm-3:05 pm
Nonstop2h 05m
PhiladelphiaSt. Louis
PHL - STL
PHLSTL
Philadelphia
lun. 9/29
5:15 am-1:02 pm
1 stop8h 47m
PhiladelphiaSt. Louis
PHL - STL
PHLSTL
Philadelphia
jue. 10/16
5:20 am-10:37 am
1 stop6h 17m
Booking 64 days in advance of your planned departure date is, on average, the best time to get cheap flights from Philadelphia to St. Louis. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
Currently, August is the cheapest month in which you can book a flight from Philadelphia to St. Louis (average of $311). Flying from Philadelphia to St. Louis in March is currently the most expensive (average of $356). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
It’s optimal to fly from Philadelphia to St. Louis in the afternoon. By choosing this option you can save up to 11% on the cost of your flight, compared to a flight at noon.
Travelers seeking maximum savings on their Philadelphia to St. Louis flight should consider departing on Saturday afternoons when fares are most often at their lowest. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.
Crew
Food
Comfort
Entertainment
Overall
Boarding
Reviews
Mike,Aug 2025
OKC - AUS
Crew
Food
Comfort
Entertainment
Overall
Boarding
Reviews
Mike,Aug 2025
OKC - AUS
Crew
Food
Comfort
Entertainment
Overall
Boarding
Reviews
Mike,Aug 2025
OKC - AUS
Crew
Food
Comfort
Entertainment
Overall
Boarding
Reviews
Mike,Aug 2025
OKC - AUS
Crew
Food
Comfort
Entertainment
Overall
Boarding
Reviews
Mike,Aug 2025
OKC - AUS
Crew
Food
Comfort
Entertainment
Overall
Boarding
Reviews
Mike,Aug 2025
OKC - AUS
Airline | Cheapest | Average | Flexibility | On-time |
---|---|---|---|---|
Cheapest$95 | Average$178 | FlexibilityNo cancel fee | On-time65% | |
Cheapest$119 | Average$236 | FlexibilityNo cancel fee | On-time62% | |
Cheapest$243 | Average$416 | FlexibilityNo cancel fee | On-time71% | |
Cheapest$259 | Average$442 | FlexibilityNo cancel fee | On-timeN/A | |
Cheapest$266 | Average$418 | FlexibilityNo cancel fee | On-time63% |