$111 Cheap Frontier Airlines flights St. Louis (STL) to Chicago (MDW)

$111 Cheap Frontier Airlines flights St. Louis (STL) to Chicago (MDW)

Prices were available within the past 7 days and start at $111 for one-way flights and $172 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Mon, Dec 15 - Thu, Jan 15

STL

St. Louis

MDW

Chicago

$172 Roundtrip, found 2 days ago

$172

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Mon, Dec 15 from St. Louis to Chicago, returning Thu, Jan 15, priced at $172 found 2 days ago

Thu, Dec 11 - Thu, Jan 15

STL

St. Louis

MDW

Chicago

$193 Roundtrip, found 2 days ago

$193

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Thu, Dec 11 from St. Louis to Chicago, returning Thu, Jan 15, priced at $193 found 2 days ago

Sun, Dec 14 - Thu, Jan 15

STL

St. Louis

MDW

Chicago

$197 Roundtrip, found 2 days ago

$197

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Sun, Dec 14 from St. Louis to Chicago, returning Thu, Jan 15, priced at $197 found 2 days ago

Mon, Feb 2 - Sun, Feb 8

STL

St. Louis

MDW

Chicago

$207 Roundtrip, found 2 days ago

$207

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Mon, Feb 2 from St. Louis to Chicago, returning Sun, Feb 8, priced at $207 found 2 days ago

Thu, Dec 11 - Fri, Dec 12

STL

St. Louis

MDW

Chicago

$218 Roundtrip, found 2 days ago

$218

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Thu, Dec 11 from St. Louis to Chicago, returning Fri, Dec 12, priced at $218 found 2 days ago

Fri, Dec 12 - Sun, Dec 14

STL

St. Louis

MDW

Chicago

$222 Roundtrip, found 2 days ago

$222

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Fri, Dec 12 from St. Louis to Chicago, returning Sun, Dec 14, priced at $222 found 2 days ago

Mon, Dec 15 - Thu, Dec 18

STL

St. Louis

MDW

Chicago

$223 Roundtrip, found 2 days ago

$223

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Mon, Dec 15 from St. Louis to Chicago, returning Thu, Dec 18, priced at $223 found 2 days ago