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

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

Prices were available within the past 7 days and start at for one-way flights and $288 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Fri, Jul 11 - Mon, Jul 21

STL

St. Louis

BWI

Baltimore

$288 Roundtrip, found 4 hours ago

$288

Roundtrip

found 4 hours ago

Select Frontier Airlines flight, departing Fri, Jul 11 from St. Louis to Baltimore, returning Mon, Jul 21, priced at $288 found 4 hours ago

Sun, Jul 13 - Tue, Jul 15

STL

St. Louis

BWI

Baltimore

$298 Roundtrip, found 4 hours ago

$298

Roundtrip

found 4 hours ago

Select Frontier Airlines flight, departing Sun, Jul 13 from St. Louis to Baltimore, returning Tue, Jul 15, priced at $298 found 4 hours ago

Sun, Jul 13 - Sat, Jul 19

STL

St. Louis

BWI

Baltimore

$301 Roundtrip, found 4 hours ago

$301

Roundtrip

found 4 hours ago

Select Frontier Airlines flight, departing Sun, Jul 13 from St. Louis to Baltimore, returning Sat, Jul 19, priced at $301 found 4 hours ago

Sun, Jul 13 - Mon, Jul 21

STL

St. Louis

BWI

Baltimore

$318 Roundtrip, found 4 hours ago

$318

Roundtrip

found 4 hours ago

Select Frontier Airlines flight, departing Sun, Jul 13 from St. Louis to Baltimore, returning Mon, Jul 21, priced at $318 found 4 hours ago

Sun, Jul 13 - Wed, Jul 16

STL

St. Louis

BWI

Baltimore

$328 Roundtrip, found 4 hours ago

$328

Roundtrip

found 4 hours ago

Select Frontier Airlines flight, departing Sun, Jul 13 from St. Louis to Baltimore, returning Wed, Jul 16, priced at $328 found 4 hours ago