$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 18 hours ago
$389
Roundtrip
found 18 hours ago
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Most Popular United Routes from Philadelphia
Most Popular United Routes from St. Louis
- Vancouver to Los Angeles (YVR - LAX)
- Atlanta to Copenhagen (ATL - CPH)
- Tulsa to Phoenix (TUL - PHX)
- Tampa to London (TPA - LHR)
- Charlotte to Houston (CLT - IAH)
- Washington to San José del Cabo (DCA - SJD)
- Jacksonville to Tulsa (JAX - TUL)
- Tampa to London (TPA - LHR)
- Boston to London (BOS - LHR)
- Washington to Mexico City (IAD - MEX)
Popular Domestic Routes in Lambert-St. Louis Intl.
- Baton Rouge to Indianapolis (BTR - IND)
- Tampa to Washington (TPA - IAD)
- Newark Liberty Intl. Airport to San Juan (EWR - SJU)
- Charlotte to Houston (CLT - IAH)
- Vancouver to Los Angeles (YVR - LAX)
- Mexico City to Fayetteville (MEX - XNA)
- Denver to Tampa (DEN - TPA)
- Denver to Tampa (DEN - TPA)
- Atlanta to Copenhagen (ATL - CPH)
- Jacksonville to Tulsa (JAX - TUL)
- Flights from Atlantic City
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