$159 Cheap United flights Phoenix (PHX) to St. Louis (STL)

$159 Cheap United flights Phoenix (PHX) to St. Louis (STL)

Prices were available within the past 7 days and start at $159 for one-way flights and $317 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Fri, Sep 5 - Mon, Sep 8

PHX

Phoenix

STL

St. Louis

$317 Roundtrip, found 12 hours ago

$317

Roundtrip

found 12 hours ago

Select United flight, departing Fri, Sep 5 from Phoenix to St. Louis, returning Mon, Sep 8, priced at $317 found 12 hours ago

Fri, Sep 5 - Mon, Sep 8

PHX

Phoenix

STL

St. Louis

$319 Roundtrip, found 12 hours ago

$319

Roundtrip

found 12 hours ago

Select United flight, departing Fri, Sep 5 from Phoenix to St. Louis, returning Mon, Sep 8, priced at $319 found 12 hours ago

Fri, Sep 5 - Mon, Sep 8

PHX

Phoenix

STL

St. Louis

$338 Roundtrip, found 12 hours ago

$338

Roundtrip

found 12 hours ago

Select United flight, departing Fri, Sep 5 from Phoenix to St. Louis, returning Mon, Sep 8, priced at $338 found 12 hours ago

Fri, Sep 5 - Mon, Sep 8

PHX

Phoenix

STL

St. Louis

$345 Roundtrip, found 12 hours ago

$345

Roundtrip

found 12 hours ago

Select United flight, departing Fri, Sep 5 from Phoenix to St. Louis, returning Mon, Sep 8, priced at $345 found 12 hours ago

Fri, Sep 5 - Mon, Sep 8

PHX

Phoenix

STL

St. Louis

$347 Roundtrip, found 12 hours ago

$347

Roundtrip

found 12 hours ago

Select United flight, departing Fri, Sep 5 from Phoenix to St. Louis, returning Mon, Sep 8, priced at $347 found 12 hours ago

Fri, Sep 5 - Mon, Sep 8

PHX

Phoenix

STL

St. Louis

$350 Roundtrip, found 12 hours ago

$350

Roundtrip

found 12 hours ago

Select United flight, departing Fri, Sep 5 from Phoenix to St. Louis, returning Mon, Sep 8, priced at $350 found 12 hours ago