
$315 Cheap United flights Philadelphia (PHL) to St. Louis (STL)
Prices were available within the past 7 days and start at $315 for one-way flights and $674 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, Sep 30 - Sat, Oct 4
PHL
Philadelphia
STL
St. Louis
$674 Roundtrip, found 1 day ago
$674
Roundtrip
found 1 day ago
Origin airport | Philadelphia Intl. |
Destination airport | Lambert-St. Louis Intl. |
Airlines serving | American Airlines, Delta, Frontier Airlines, Spirit Airlines, United |
Popular airline | American Airlines |
Distance | 1298 km |
Average flight time | 1 hour 32 mins |
Most Popular United Routes from Philadelphia
Most Popular United Routes from St. Louis
- Syracuse to Austin (SYR - AUS)
- Richmond to Tokyo (RIC - HND)
- Chicago to Austin (ORD - AUS)
- Chicago to Puerto Vallarta (ORD - PVR)
- Phoenix to Seattle (PHX - SEA)
- Hartford to Pensacola (BDL - PNS)
- Chicago to Puerto Vallarta (ORD - PVR)
- Tucson to New York (TUS - LGA)
- Portland to Newark Liberty Intl. Airport (PDX - EWR)
- Cincinnati to Osaka (CVG - ITM)
Popular Domestic Routes in Lambert-St. Louis Intl.
- Phoenix to Seattle (PHX - SEA)
- Chicago to Austin (ORD - AUS)
- Chicago to Jackson Hole (ORD - JAC)
- Tucson to Newark Liberty Intl. Airport (TUS - EWR)
- Rapid City to San Antonio (RAP - SAT)
- New York to Atlanta (LGA - ATL)
- Chicago to Vail (ORD - EGE)
- Chicago to Austin (ORD - AUS)
- Richmond to Tokyo (RIC - HND)
- Phoenix to Seattle (PHX - SEA)