$211 Cheap Frontier Airlines flights Baltimore (BWI) to St. Louis (STL)

$211 Cheap Frontier Airlines flights Baltimore (BWI) to St. Louis (STL)

Prices were available within the past 7 days and start at $211 for one-way flights and $311 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, Jul 8 - Sat, Jul 12

BWI

Baltimore

STL

St. Louis

$311 Roundtrip, found 14 hours ago

$311

Roundtrip

found 14 hours ago

Select Frontier Airlines flight, departing Tue, Jul 8 from Baltimore to St. Louis, returning Sat, Jul 12, priced at $311 found 14 hours ago

Thu, Jul 10 - Thu, Jul 10

BWI

Baltimore

STL

St. Louis

$410 Roundtrip, found 14 hours ago

$410

Roundtrip

found 14 hours ago

Select Frontier Airlines flight, departing Thu, Jul 10 from Baltimore to St. Louis, returning Thu, Jul 10, priced at $410 found 14 hours ago