$100 Cheap Frontier Airlines flights St. Louis (STL) to Chicago (MDW)

$100 Cheap Frontier Airlines flights St. Louis (STL) to Chicago (MDW)

Prices were available within the past 7 days and start at $100 for one-way flights and $220 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Fri, Aug 7 - Tue, Aug 18

STL

St. Louis

MDW

Chicago

$220 Roundtrip, found 1 day ago

$220

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Fri, Aug 7 from St. Louis to Chicago, returning Tue, Aug 18, priced at $220 found 1 day ago

Fri, Aug 7 - Sun, Aug 16

STL

St. Louis

MDW

Chicago

$240 Roundtrip, found 1 day ago

$240

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Fri, Aug 7 from St. Louis to Chicago, returning Sun, Aug 16, priced at $240 found 1 day ago