$90 Cheap Frontier Airlines flights St. Louis (STL) to Phoenix (PHX)

$90 Cheap Frontier Airlines flights St. Louis (STL) to Phoenix (PHX)

Prices were available within the past 7 days and start at $90 for one-way flights and $178 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Fri, Oct 10 - Mon, Oct 13

STL

St. Louis

PHX

Phoenix

$178 Roundtrip, found 22 hours ago

$178

Roundtrip

found 22 hours ago

Select Frontier Airlines flight, departing Fri, Oct 10 from St. Louis to Phoenix, returning Mon, Oct 13, priced at $178 found 22 hours ago

Fri, Oct 10 - Wed, Oct 15

STL

St. Louis

PHX

Phoenix

$200 Roundtrip, found 22 hours ago

$200

Roundtrip

found 22 hours ago

Select Frontier Airlines flight, departing Fri, Oct 10 from St. Louis to Phoenix, returning Wed, Oct 15, priced at $200 found 22 hours ago

Fri, Oct 10 - Fri, Oct 17

STL

St. Louis

PHX

Phoenix

$208 Roundtrip, found 22 hours ago

$208

Roundtrip

found 22 hours ago

Select Frontier Airlines flight, departing Fri, Oct 10 from St. Louis to Phoenix, returning Fri, Oct 17, priced at $208 found 22 hours ago

Fri, Oct 10 - Wed, Oct 15

STL

St. Louis

PHX

Phoenix

$237 Roundtrip, found 22 hours ago

$237

Roundtrip

found 22 hours ago

Select Frontier Airlines flight, departing Fri, Oct 10 from St. Louis to Phoenix, returning Wed, Oct 15, priced at $237 found 22 hours ago

Wed, Oct 8 - Mon, Oct 13

STL

St. Louis

PHX

Phoenix

$240 Roundtrip, found 22 hours ago

$240

Roundtrip

found 22 hours ago

Select Frontier Airlines flight, departing Wed, Oct 8 from St. Louis to Phoenix, returning Mon, Oct 13, priced at $240 found 22 hours ago

Fri, Oct 10 - Wed, Oct 15

STL

St. Louis

PHX

Phoenix

$242 Roundtrip, found 22 hours ago

$242

Roundtrip

found 22 hours ago

Select Frontier Airlines flight, departing Fri, Oct 10 from St. Louis to Phoenix, returning Wed, Oct 15, priced at $242 found 22 hours ago