$110 Cheap Frontier Airlines flights St. Louis (STL) to Chicago (ORD)

$110 Cheap Frontier Airlines flights St. Louis (STL) to Chicago (ORD)

Prices were available within the past 7 days and start at $110 for one-way flights and $154 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Mon, Oct 6 - Thu, Oct 16

STL

St. Louis

ORD

Chicago

$154 Roundtrip, found 2 days ago

$154

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Mon, Oct 6 from St. Louis to Chicago, returning Thu, Oct 16, priced at $154 found 2 days ago

Mon, Oct 6 - Fri, Oct 17

STL

St. Louis

ORD

Chicago

$187 Roundtrip, found 2 days ago

$187

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Mon, Oct 6 from St. Louis to Chicago, returning Fri, Oct 17, priced at $187 found 2 days ago

Thu, Oct 9 - Thu, Oct 16

STL

St. Louis

ORD

Chicago

$214 Roundtrip, found 2 days ago

$214

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Thu, Oct 9 from St. Louis to Chicago, returning Thu, Oct 16, priced at $214 found 2 days ago

Sun, Oct 5 - Thu, Oct 16

STL

St. Louis

ORD

Chicago

$235 Roundtrip, found 2 days ago

$235

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Sun, Oct 5 from St. Louis to Chicago, returning Thu, Oct 16, priced at $235 found 2 days ago