$209 Cheap United flights St. Louis (STL) to Philadelphia (PHL)

$209 Cheap United flights St. Louis (STL) to Philadelphia (PHL)

Prices were available within the past 7 days and start at $209 for one-way flights and $417 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Mon, Jul 21 - Fri, Jul 25

STL

St. Louis

PHL

Philadelphia

$417 Roundtrip, found 15 hours ago

$417

Roundtrip

found 15 hours ago

Select United flight, departing Mon, Jul 21 from St. Louis to Philadelphia, returning Fri, Jul 25, priced at $417 found 15 hours ago

Mon, Jul 21 - Fri, Jul 25

STL

St. Louis

PHL

Philadelphia

$438 Roundtrip, found 15 hours ago

$438

Roundtrip

found 15 hours ago

Select United flight, departing Mon, Jul 21 from St. Louis to Philadelphia, returning Fri, Jul 25, priced at $438 found 15 hours ago

Mon, Jul 21 - Fri, Jul 25

STL

St. Louis

PHL

Philadelphia

$460 Roundtrip, found 15 hours ago

$460

Roundtrip

found 15 hours ago

Select United flight, departing Mon, Jul 21 from St. Louis to Philadelphia, returning Fri, Jul 25, priced at $460 found 15 hours ago

Mon, Jul 21 - Fri, Jul 25

STL

St. Louis

PHL

Philadelphia

$477 Roundtrip, found 15 hours ago

$477

Roundtrip

found 15 hours ago

Select United flight, departing Mon, Jul 21 from St. Louis to Philadelphia, returning Fri, Jul 25, priced at $477 found 15 hours ago

Mon, Jul 21 - Fri, Jul 25

STL

St. Louis

PHL

Philadelphia

$486 Roundtrip, found 15 hours ago

$486

Roundtrip

found 15 hours ago

Select United flight, departing Mon, Jul 21 from St. Louis to Philadelphia, returning Fri, Jul 25, priced at $486 found 15 hours ago