Cheap Frontier Airlines flights Detroit (DTW) to St. Louis (STL)

Cheap Frontier Airlines flights Detroit (DTW) to St. Louis (STL)

Prices were available within the past 7 days and start at for one-way flights and $138 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, Jan 27 - Tue, Feb 10

DTW

Detroit

STL

St. Louis

$138 Roundtrip, found 4 hours ago

$138

Roundtrip

found 4 hours ago

Select Frontier Airlines flight, departing Tue, Jan 27 from Detroit to St. Louis, returning Tue, Feb 10, priced at $138 found 4 hours ago

Sat, Jan 24 - Wed, Jan 28

DTW

Detroit

STL

St. Louis

$155 Roundtrip, found 4 hours ago

$155

Roundtrip

found 4 hours ago

Select Frontier Airlines flight, departing Sat, Jan 24 from Detroit to St. Louis, returning Wed, Jan 28, priced at $155 found 4 hours ago

Sat, Jan 24 - Mon, Jan 26

DTW

Detroit

STL

St. Louis

$172 Roundtrip, found 4 hours ago

$172

Roundtrip

found 4 hours ago

Select Frontier Airlines flight, departing Sat, Jan 24 from Detroit to St. Louis, returning Mon, Jan 26, priced at $172 found 4 hours ago

Tue, Jan 27 - Wed, Feb 4

DTW

Detroit

STL

St. Louis

$176 Roundtrip, found 4 hours ago

$176

Roundtrip

found 4 hours ago

Select Frontier Airlines flight, departing Tue, Jan 27 from Detroit to St. Louis, returning Wed, Feb 4, priced at $176 found 4 hours ago

Sun, Jan 25 - Wed, Jan 28

DTW

Detroit

STL

St. Louis

$190 Roundtrip, found 4 hours ago

$190

Roundtrip

found 4 hours ago

Select Frontier Airlines flight, departing Sun, Jan 25 from Detroit to St. Louis, returning Wed, Jan 28, priced at $190 found 4 hours ago

Sat, Feb 21 - Wed, Mar 11

DTW

Detroit

STL

St. Louis

$191 Roundtrip, found 4 hours ago

$191

Roundtrip

found 4 hours ago

Select Frontier Airlines flight, departing Sat, Feb 21 from Detroit to St. Louis, returning Wed, Mar 11, priced at $191 found 4 hours ago

Sat, Jan 24 - Wed, Feb 4

DTW

Detroit

STL

St. Louis

$193 Roundtrip, found 4 hours ago

$193

Roundtrip

found 4 hours ago

Select Frontier Airlines flight, departing Sat, Jan 24 from Detroit to St. Louis, returning Wed, Feb 4, priced at $193 found 4 hours ago

Thu, Jan 22 - Wed, Jan 28

DTW

Detroit

STL

St. Louis

$206 Roundtrip, found 4 hours ago

$206

Roundtrip

found 4 hours ago

Select Frontier Airlines flight, departing Thu, Jan 22 from Detroit to St. Louis, returning Wed, Jan 28, priced at $206 found 4 hours ago

Tue, Jan 20 - Fri, Jan 23

DTW

Detroit

STL

St. Louis

$207 Roundtrip, found 4 hours ago

$207

Roundtrip

found 4 hours ago

Select Frontier Airlines flight, departing Tue, Jan 20 from Detroit to St. Louis, returning Fri, Jan 23, priced at $207 found 4 hours ago

Tue, Jan 27 - Sun, Feb 1

DTW

Detroit

STL

St. Louis

$210 Roundtrip, found 4 hours ago

$210

Roundtrip

found 4 hours ago

Select Frontier Airlines flight, departing Tue, Jan 27 from Detroit to St. Louis, returning Sun, Feb 1, priced at $210 found 4 hours ago

Thu, Jan 22 - Mon, Jan 26

DTW

Detroit

STL

St. Louis

$223 Roundtrip, found 4 hours ago

$223

Roundtrip

found 4 hours ago

Select Frontier Airlines flight, departing Thu, Jan 22 from Detroit to St. Louis, returning Mon, Jan 26, priced at $223 found 4 hours ago

Wed, Mar 4 - Mon, Mar 16

DTW

Detroit

STL

St. Louis

$224 Roundtrip, found 4 hours ago

$224

Roundtrip

found 4 hours ago

Select Frontier Airlines flight, departing Wed, Mar 4 from Detroit to St. Louis, returning Mon, Mar 16, priced at $224 found 4 hours ago