St Louis to Philadelphia
STLPHL
Fly from St Louis to Philadelphia starting at USD 97 with F9.
Best fare available on May 14, 2026.
Limited seats. Better plans. Book before it's gone.
St Louis to Philadelphia cheapest flights this week
12 May
AA
12:59STL
15:19PHL
Direct$194VIEW DEAL
14 May
F9
18:55STL
06:12PHL
1 Stop$97VIEW DEAL
St Louis to Philadelphia monthly flight fare trend
May
from USD 97
Jun
No flights
Jul
No flights
Aug
No flights
Sep
No flights
Oct
No flights
Airport Details
Origin
St Louis
St. Louis Lambert International Airport (STL)
St Louis, STL
Zone
Chicago
Elev
618 ft
Destination
Philadelphia
Philadelphia International Airport (PHL)
Philadelphia, PHL
Zone
New York
Elev
36 ft
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