$77 Cheap Frontier Airlines flights St. Louis (STL) to Chicago (MDW)

$77 Cheap Frontier Airlines flights St. Louis (STL) to Chicago (MDW)

Prices were available within the past 7 days and start at $77 for one-way flights and $154 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Fri, Oct 24 - Mon, Nov 3

STL

St. Louis

MDW

Chicago

$154 Roundtrip, found 2 days ago

$154

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Fri, Oct 24 from St. Louis to Chicago, returning Mon, Nov 3, priced at $154 found 2 days ago

Sun, Nov 9 - Wed, Nov 19

STL

St. Louis

MDW

Chicago

$178 Roundtrip, found 2 days ago

$178

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Sun, Nov 9 from St. Louis to Chicago, returning Wed, Nov 19, priced at $178 found 2 days ago

Sun, Oct 26 - Mon, Nov 3

STL

St. Louis

MDW

Chicago

$189 Roundtrip, found 2 days ago

$189

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Sun, Oct 26 from St. Louis to Chicago, returning Mon, Nov 3, priced at $189 found 2 days ago

Sun, Nov 9 - Tue, Nov 18

STL

St. Louis

MDW

Chicago

$230 Roundtrip, found 2 days ago

$230

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Sun, Nov 9 from St. Louis to Chicago, returning Tue, Nov 18, priced at $230 found 2 days ago

Fri, Nov 7 - Sun, Nov 16

STL

St. Louis

MDW

Chicago

$231 Roundtrip, found 2 days ago

$231

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Fri, Nov 7 from St. Louis to Chicago, returning Sun, Nov 16, priced at $231 found 2 days ago

Sun, Nov 9 - Mon, Nov 17

STL

St. Louis

MDW

Chicago

$241 Roundtrip, found 2 days ago

$241

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Sun, Nov 9 from St. Louis to Chicago, returning Mon, Nov 17, priced at $241 found 2 days ago

Fri, Nov 7 - Thu, Nov 20

STL

St. Louis

MDW

Chicago

$244 Roundtrip, found 2 days ago

$244

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Fri, Nov 7 from St. Louis to Chicago, returning Thu, Nov 20, priced at $244 found 2 days ago