Cheap Frontier Airlines flights Baltimore (BWI) to St. Louis (STL)

Cheap Frontier Airlines flights Baltimore (BWI) to St. Louis (STL)

Prices were available within the past 7 days and start at for one-way flights and $188 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Wed, May 14 - Tue, May 20

BWI

Baltimore

STL

St. Louis

$188 Roundtrip, found 11 hours ago

$188

Roundtrip

found 11 hours ago

Select Frontier Airlines flight, departing Wed, May 14 from Baltimore to St. Louis, returning Tue, May 20, priced at $188 found 11 hours ago

Tue, May 20 - Wed, May 21

BWI

Baltimore

STL

St. Louis

$210 Roundtrip, found 11 hours ago

$210

Roundtrip

found 11 hours ago

Select Frontier Airlines flight, departing Tue, May 20 from Baltimore to St. Louis, returning Wed, May 21, priced at $210 found 11 hours ago

Tue, May 20 - Fri, May 23

BWI

Baltimore

STL

St. Louis

$230 Roundtrip, found 11 hours ago

$230

Roundtrip

found 11 hours ago

Select Frontier Airlines flight, departing Tue, May 20 from Baltimore to St. Louis, returning Fri, May 23, priced at $230 found 11 hours ago

Sun, May 18 - Wed, May 21

BWI

Baltimore

STL

St. Louis

$250 Roundtrip, found 11 hours ago

$250

Roundtrip

found 11 hours ago

Select Frontier Airlines flight, departing Sun, May 18 from Baltimore to St. Louis, returning Wed, May 21, priced at $250 found 11 hours ago

Tue, May 20 - Thu, May 22

BWI

Baltimore

STL

St. Louis

$260 Roundtrip, found 11 hours ago

$260

Roundtrip

found 11 hours ago

Select Frontier Airlines flight, departing Tue, May 20 from Baltimore to St. Louis, returning Thu, May 22, priced at $260 found 11 hours ago

Sun, May 18 - Fri, May 23

BWI

Baltimore

STL

St. Louis

$271 Roundtrip, found 11 hours ago

$271

Roundtrip

found 11 hours ago

Select Frontier Airlines flight, departing Sun, May 18 from Baltimore to St. Louis, returning Fri, May 23, priced at $271 found 11 hours ago

Sat, May 17 - Thu, May 22

BWI

Baltimore

STL

St. Louis

$280 Roundtrip, found 11 hours ago

$280

Roundtrip

found 11 hours ago

Select Frontier Airlines flight, departing Sat, May 17 from Baltimore to St. Louis, returning Thu, May 22, priced at $280 found 11 hours ago

Sun, May 18 - Thu, May 22

BWI

Baltimore

STL

St. Louis

$300 Roundtrip, found 11 hours ago

$300

Roundtrip

found 11 hours ago

Select Frontier Airlines flight, departing Sun, May 18 from Baltimore to St. Louis, returning Thu, May 22, priced at $300 found 11 hours ago