$217 Cheap United flights Phoenix (PHX) to St. Louis (STL)

$217 Cheap United flights Phoenix (PHX) to St. Louis (STL)

Prices were available within the past 7 days and start at $217 for one-way flights and $600 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Thu, May 15 - Sun, May 18

PHX

Phoenix

STL

St. Louis

$600 Roundtrip, found 11 hours ago

$600

Roundtrip

found 11 hours ago

Select United flight, departing Thu, May 15 from Phoenix to St. Louis, returning Sun, May 18, priced at $600 found 11 hours ago

Thu, May 15 - Sun, May 18

PHX

Phoenix

STL

St. Louis

$609 Roundtrip, found 11 hours ago

$609

Roundtrip

found 11 hours ago

Select United flight, departing Thu, May 15 from Phoenix to St. Louis, returning Sun, May 18, priced at $609 found 11 hours ago

Fri, May 16 - Tue, May 20

PHX

Phoenix

STL

St. Louis

$666 Roundtrip, found 11 hours ago

$666

Roundtrip

found 11 hours ago

Select United flight, departing Fri, May 16 from Phoenix to St. Louis, returning Tue, May 20, priced at $666 found 11 hours ago