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 $280 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Mon, Sep 29 - Wed, Oct 8

TUS

Tucson

STL

St. Louis

$280 Roundtrip, found 21 hours ago

$280

Roundtrip

found 21 hours ago

Select Frontier Airlines flight, departing Mon, Sep 29 from Tucson to St. Louis, returning Wed, Oct 8, priced at $280 found 21 hours ago

Sun, Sep 28 - Sun, Oct 5

TUS

Tucson

STL

St. Louis

$340 Roundtrip, found 21 hours ago

$340

Roundtrip

found 21 hours ago

Select Frontier Airlines flight, departing Sun, Sep 28 from Tucson to St. Louis, returning Sun, Oct 5, priced at $340 found 21 hours ago