Photo by Krystyna Fedrizzi
Popular airlines from Denver to St. Charles
Frontier AirlinesFrontier Airlines
UnitedUnited
American AirlinesAmerican Airlines
Southwest AirlinesSouthwest Airlines
DeltaDelta
Denver Air ConnectionDenver Air Connection
Alaska AirlinesAlaska Airlines
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Today's featured flight deals from Denver to St. Charles
Nonstop
Carry-on included
Lower price than typical
- Denver (DEN) to Chicago (ORD).Frontier Airlines, nonstop.Departing on Fri, Jul 18 at 8:31pm from Denver, arriving on Sat, Jul 19 at 12:10am in Chicago.Returning on Sun, Jul 27 at 5:40am from Chicago, arriving at 7:30am in Denver.Select Frontier Airlines flight departing on Fri, Jul 18 at 8:31pm from Denver, returning on Sun, Jul 27 at 5:40am from Chicago priced at $17055% less than typical$170
- Denver (DEN) to Chicago (ORD).Frontier Airlines, nonstop.Departing on Sat, Jul 26 at 8:31pm from Denver, arriving on Sun, Jul 27 at 12:10am in Chicago.Returning on Sat, Aug 2 at 2:44pm from Chicago, arriving at 4:33pm in Denver.Select Frontier Airlines flight departing on Sat, Jul 26 at 8:31pm from Denver, returning on Sat, Aug 2 at 2:44pm from Chicago priced at $12260% less than typical$122
- Denver (DEN) to Chicago (ORD).Frontier Airlines, nonstop.Departing on Sun, Jul 20 at 8:31pm from Denver, arriving on Mon, Jul 21 at 12:10am in Chicago.Returning on Sun, Jul 27 at 5:40am from Chicago, arriving at 7:30am in Denver.Select Frontier Airlines flight departing on Sun, Jul 20 at 8:31pm from Denver, returning on Sun, Jul 27 at 5:40am from Chicago priced at $18350% less than typical$183
- Denver (DEN) to Chicago (ORD).Frontier Airlines, nonstop.Departing on Sat, Jul 26 at 8:31pm from Denver, arriving on Sun, Jul 27 at 12:10am in Chicago.Returning on Sat, Aug 2 at 7:00am from Chicago, arriving at 8:53am in Denver.Select Frontier Airlines flight departing on Sat, Jul 26 at 8:31pm from Denver, returning on Sat, Aug 2 at 7:00am from Chicago priced at $12560% less than typical$125
- Denver (DEN) to Chicago (ORD).Frontier Airlines, nonstop.Departing on Thu, Jul 24 at 8:31pm from Denver, arriving on Fri, Jul 25 at 12:10am in Chicago.Returning on Mon, Jul 28 at 5:40am from Chicago, arriving at 7:30am in Denver.Select Frontier Airlines flight departing on Thu, Jul 24 at 8:31pm from Denver, returning on Mon, Jul 28 at 5:40am from Chicago priced at $14555% less than typical$145
- Denver (DEN) to Chicago (ORD).Frontier Airlines, nonstop.Departing on Sun, Jul 20 at 8:31pm from Denver, arriving on Mon, Jul 21 at 12:10am in Chicago.Returning on Fri, Jul 25 at 5:40am from Chicago, arriving at 7:30am in Denver.Select Frontier Airlines flight departing on Sun, Jul 20 at 8:31pm from Denver, returning on Fri, Jul 25 at 5:40am from Chicago priced at $18850% less than typical$188
- Denver (DEN) to Chicago (ORD).Frontier Airlines, nonstop.Departing on Fri, Jul 18 at 8:31pm from Denver, arriving on Sat, Jul 19 at 12:10am in Chicago.Returning on Tue, Jul 22 at 7:00am from Chicago, arriving at 8:53am in Denver.Select Frontier Airlines flight departing on Fri, Jul 18 at 8:31pm from Denver, returning on Tue, Jul 22 at 7:00am from Chicago priced at $17550% less than typical$175
- Denver (DEN) to Chicago (ORD).Frontier Airlines, nonstop.Departing on Wed, Jul 30 at 8:31pm from Denver, arriving on Thu, Jul 31 at 12:10am in Chicago.Returning on Sun, Aug 3 at 5:40am from Chicago, arriving at 7:30am in Denver.Select Frontier Airlines flight departing on Wed, Jul 30 at 8:31pm from Denver, returning on Sun, Aug 3 at 5:40am from Chicago priced at $14055% less than typical$140
- Denver (DEN) to Chicago (ORD).Frontier Airlines, nonstop.Departing on Tue, Jul 22 at 8:31pm from Denver, arriving on Wed, Jul 23 at 12:10am in Chicago.Returning on Sat, Aug 2 at 2:44pm from Chicago, arriving at 4:33pm in Denver.Select Frontier Airlines flight departing on Tue, Jul 22 at 8:31pm from Denver, returning on Sat, Aug 2 at 2:44pm from Chicago priced at $17445% less than typical$174
Cheap Flights from Denver to St. Charles (DEN-CHI)
Prices were available within the past 7 days and start at $53 for one-way flights and $93 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.
Wed, Aug 27 - Sat, Aug 30
DEN
Denver
ORD
Chicago
$93 Roundtrip, found 16 hours ago
$93
Roundtrip
found 16 hours ago
Tue, Sep 2 - Sat, Sep 6
DEN
Denver
ORD
Chicago
$103 Roundtrip, found 11 hours ago
$103
Roundtrip
found 11 hours ago
Wed, Sep 3 - Sat, Sep 6
COS
Colorado Springs
MDW
Chicago
$105 Roundtrip, found 2 days ago
$105
Roundtrip
found 2 days ago
Tue, Aug 19 - Wed, Aug 27
COS
Colorado Springs
ORD
Chicago
$105 Roundtrip, found 4 days ago
$105
Roundtrip
found 4 days ago
Sat, Oct 11 - Tue, Oct 14
DEN
Denver
MDW
Chicago
$197 Roundtrip, found 2 days ago
$197
Roundtrip
found 2 days ago
Mon, Oct 20 - Wed, Oct 22
DEN
Denver
ORD
Chicago
$257 Roundtrip, found 2 days ago
$257
Roundtrip
found 2 days ago
Find the cheapest month to fly from Denver (DEN) to Chicago (ORD)
September is typically the cheapest month to fly
From $48 - $123 per traveler.
Graph displaying average flight prices per month
Alternative airports near St. Charles
Prices were available within the past 7 days. Prices and availability are subject to change.
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