Cheap Frontier Airlines flights Tucson (TUS) to St. Louis (STL)

Cheap Frontier Airlines flights Tucson (TUS) to St. Louis (STL)

Prices were available within the past 7 days and start at for one-way flights and $315 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Sun, Jul 27 - Wed, Aug 6

TUS

Tucson

STL

St. Louis

$315 Roundtrip, found 1 day ago

$315

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Sun, Jul 27 from Tucson to St. Louis, returning Wed, Aug 6, priced at $315 found 1 day ago

Sun, Jul 27 - Sat, Aug 9

TUS

Tucson

STL

St. Louis

$326 Roundtrip, found 1 day ago

$326

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Sun, Jul 27 from Tucson to St. Louis, returning Sat, Aug 9, priced at $326 found 1 day ago