$94 Cheap Frontier Airlines flights Denver (DEN) to St. Louis (STL)

$94 Cheap Frontier Airlines flights Denver (DEN) to St. Louis (STL)

Prices were available within the past 7 days and start at $94 for one-way flights and $171 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, Dec 16 - Sat, Dec 20

DEN

Denver

STL

St. Louis

$171 Roundtrip, found 3 days ago

$171

Roundtrip

found 3 days ago

Select Frontier Airlines flight, departing Tue, Dec 16 from Denver to St. Louis, returning Sat, Dec 20, priced at $171 found 3 days ago

Wed, Dec 17 - Sat, Dec 20

DEN

Denver

STL

St. Louis

$179 Roundtrip, found 3 days ago

$179

Roundtrip

found 3 days ago

Select Frontier Airlines flight, departing Wed, Dec 17 from Denver to St. Louis, returning Sat, Dec 20, priced at $179 found 3 days ago

Tue, Dec 16 - Mon, Dec 22

DEN

Denver

STL

St. Louis

$193 Roundtrip, found 3 days ago

$193

Roundtrip

found 3 days ago

Select Frontier Airlines flight, departing Tue, Dec 16 from Denver to St. Louis, returning Mon, Dec 22, priced at $193 found 3 days ago

Tue, Dec 16 - Sun, Dec 21

DEN

Denver

STL

St. Louis

$197 Roundtrip, found 3 days ago

$197

Roundtrip

found 3 days ago

Select Frontier Airlines flight, departing Tue, Dec 16 from Denver to St. Louis, returning Sun, Dec 21, priced at $197 found 3 days ago

Wed, Dec 17 - Mon, Dec 22

DEN

Denver

STL

St. Louis

$201 Roundtrip, found 3 days ago

$201

Roundtrip

found 3 days ago

Select Frontier Airlines flight, departing Wed, Dec 17 from Denver to St. Louis, returning Mon, Dec 22, priced at $201 found 3 days ago

Wed, Dec 17 - Sun, Dec 21

DEN

Denver

STL

St. Louis

$205 Roundtrip, found 3 days ago

$205

Roundtrip

found 3 days ago

Select Frontier Airlines flight, departing Wed, Dec 17 from Denver to St. Louis, returning Sun, Dec 21, priced at $205 found 3 days ago