$168 Cheap United flights Philadelphia (PHL) to St. Louis (STL)
Prices were available within the past 7 days and start at $168 for one-way flights and $389 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.
Mon, Jun 9 - Thu, Jun 12
PHL
Philadelphia
STL
St. Louis
$389 Roundtrip, found 15 hours ago
$389
Roundtrip
found 15 hours ago
Most Popular United Routes from Philadelphia
Most Popular United Routes from St. Louis
- Tampa to London (TPA - LHR)
- Atlanta to Copenhagen (ATL - CPH)
- Austin to Philadelphia (AUS - PHL)
- Charlotte to Houston (CLT - IAH)
- Tampa to London (TPA - LHR)
- Newark Liberty Intl. Airport to San Juan (EWR - SJU)
- Tampa to Washington (TPA - IAD)
- Denver to Tampa (DEN - TPA)
- Gillette to Springfield (GCC - SGF)
- Washington to Mexico City (DCA - MEX)
Popular Domestic Routes in Lambert-St. Louis Intl.
- Gillette to Springfield (GCC - SGF)
- Atlanta to San Francisco (ATL - SFO)
- Washington to Mexico City (DCA - MEX)
- Gillette to Springfield (GCC - SGF)
- Baton Rouge to Indianapolis (BTR - IND)
- Tulsa to Phoenix (TUL - PHX)
- Charlotte to Houston (CLT - IAH)
- Tampa to Washington (TPA - IAD)
- Jacksonville to Tulsa (JAX - TUL)
- Denver to Tampa (DEN - TPA)
- Flights from Atlantic City
- Flights from Philadelphia
- Flights from Jersey Shore
- Flights from Wilmington
- Flights from Newark
- Flights from New Hope
- Flights from Mount Laurel
- Flights from King of Prussia
- Flights from Cherry Hill
- Flights from Bensalem
- Flights from West Chester
- Flights from Delaware Beaches