
$267 Cheap United flights St. Louis (STL) to Philadelphia (PHL)
Prices were available within the past 7 days and start at $267 for one-way flights and $445 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Fri, Mar 6 - Sat, Mar 14
STL
St. Louis
PHL
Philadelphia
$445 Roundtrip, found 3 days ago
$445
Roundtrip
found 3 days ago

Fri, Mar 6 - Sat, Mar 14
STL
St. Louis
PHL
Philadelphia
$463 Roundtrip, found 3 days ago
$463
Roundtrip
found 3 days ago

Fri, Mar 6 - Sat, Mar 14
STL
St. Louis
PHL
Philadelphia
$472 Roundtrip, found 3 days ago
$472
Roundtrip
found 3 days ago

Fri, Mar 6 - Sat, Mar 14
STL
St. Louis
PHL
Philadelphia
$494 Roundtrip, found 3 days ago
$494
Roundtrip
found 3 days ago
Find the cheapest month to fly from St. Louis (STL) to Philadelphia (PHL)
January is typically the cheapest month to fly
From $120 - $414 per traveler.
Origin airport | Lambert-St. Louis Intl. |
|---|---|
Destination airport | Philadelphia Intl. |
Distance | 1298 km |
Average flight time | 3 hours 16 mins |
Most Popular United Routes from St. Louis
Most Popular United Routes from Philadelphia
- Dallas to Philadelphia (DFW - PHL)
- Newark Liberty Intl. Airport to Los Angeles (EWR - LAX)
- Detroit to Las Vegas (DTW - LAS)
- San Juan to Houston (SJU - IAH)
- Newark Liberty Intl. Airport to Miami (EWR - MIA)
- Grand Rapids to Tampa (GRR - TPA)
- Charlotte to Newark Liberty Intl. Airport (CLT - EWR)
- Chicago to Las Vegas (ORD - LAS)
- Detroit to Miami (DTW - MIA)
- Detroit to Chicago (DTW - ORD)
Popular Domestic Routes in Philadelphia Intl.
- Newark Liberty Intl. Airport to Los Angeles (EWR - LAX)
- San Juan to Houston (SJU - IAH)
- Detroit to Miami (DTW - MIA)
- Bozeman to Philadelphia (BZN - PHL)
- Detroit to Las Vegas (DTW - LAS)
- Cincinnati to Boston (CVG - BOS)
- Newark Liberty Intl. Airport to Los Angeles (EWR - LAX)
- Detroit to Las Vegas (DTW - LAS)
- Grand Rapids to Tampa (GRR - TPA)
- Detroit to Phoenix (DTW - PHX)