Flights to Southwest Illinois from Colorado Springs - $54

Cheap Flights from Colorado Springs to Southwest Illinois (DEN-STL)

Prices were available within the past 7 days and start at $54 for one-way flights and $108 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Wed, May 28 - Sat, Jun 7

DEN

Denver

STL

St. Louis

$108 Roundtrip, found 1 hour ago

$108

Roundtrip

found 1 hour ago

Select Frontier Airlines flight, departing Wed, May 28 from Denver to St. Louis, returning Sat, Jun 7, priced at $108 found 1 hour ago

Wed, Jun 4 - Sat, Jun 14

DEN

Denver

STL

St. Louis

$197 Roundtrip, found 1 hour ago

$197

Roundtrip

found 1 hour ago

Select Southwest Airlines flight, departing Wed, Jun 4 from Denver to St. Louis, returning Sat, Jun 14, priced at $197 found 1 hour ago

Wed, Jul 23 - Sat, Aug 2

DEN

Denver

STL

St. Louis

$197 Roundtrip, found 1 hour ago

$197

Roundtrip

found 1 hour ago

Select United flight, departing Wed, Jul 23 from Denver to St. Louis, returning Sat, Aug 2, priced at $197 found 1 hour ago

Wed, Jul 16 - Sat, Jul 26

DEN

Denver

STL

St. Louis

$217 Roundtrip, found 1 hour ago

$217

Roundtrip

found 1 hour ago

Select Delta flight, departing Wed, Jul 16 from Denver to St. Louis, returning Sat, Jul 26, priced at $217 found 1 hour ago

Fri, Jul 25 - Mon, Aug 4

DEN

Denver

STL

St. Louis

$217 Roundtrip, found 1 hour ago

$217

Roundtrip

found 1 hour ago

Select American Airlines flight, departing Fri, Jul 25 from Denver to St. Louis, returning Mon, Aug 4, priced at $217 found 1 hour ago

Wed, Jul 16 - Tue, Jul 22

COS

Colorado Springs

STL

St. Louis

$243 Roundtrip, found 8 hours ago

$243

Roundtrip

found 8 hours ago

Select Delta flight, departing Wed, Jul 16 from Colorado Springs to St. Louis, returning Tue, Jul 22, priced at $243 found 8 hours ago