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

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

Prices were available within the past 7 days and start at $100 for one-way flights and $196 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Wed, Aug 5 - Sat, Aug 15

STL

St. Louis

ORD

Chicago

$196 Roundtrip, found 1 day ago

$196

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Wed, Aug 5 from St. Louis to Chicago, returning Sat, Aug 15, priced at $196 found 1 day ago

Tue, Aug 4 - Thu, Aug 13

STL

St. Louis

ORD

Chicago

$214 Roundtrip, found 1 day ago

$214

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Tue, Aug 4 from St. Louis to Chicago, returning Thu, Aug 13, priced at $214 found 1 day ago

Sun, Aug 2 - Wed, Aug 12

STL

St. Louis

ORD

Chicago

$220 Roundtrip, found 1 day ago

$220

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Sun, Aug 2 from St. Louis to Chicago, returning Wed, Aug 12, priced at $220 found 1 day ago

Mon, Aug 3 - Thu, Aug 13

STL

St. Louis

ORD

Chicago

$233 Roundtrip, found 1 day ago

$233

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Mon, Aug 3 from St. Louis to Chicago, returning Thu, Aug 13, priced at $233 found 1 day ago

Tue, Aug 4 - Fri, Aug 14

STL

St. Louis

ORD

Chicago

$240 Roundtrip, found 1 day ago

$240

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Tue, Aug 4 from St. Louis to Chicago, returning Fri, Aug 14, priced at $240 found 1 day ago

Wed, Aug 5 - Sat, Aug 15

STL

St. Louis

ORD

Chicago

$250 Roundtrip, found 1 day ago

$250

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Wed, Aug 5 from St. Louis to Chicago, returning Sat, Aug 15, priced at $250 found 1 day ago