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DEN
Denver
CHI
Chicago
Denver → Chicago
Frontier Airlines · Round Trip · Nonstop
Save $40 (21% off)
Compared to the typical price of $191
$159$191
per person · round trip
Flight Details
Cabin
Economy
Departs
Jul 31, 2026
Returns
Aug 6, 2026
Price History
Avg: $155
Low: $151
High: $159
Mar 26Mar 27
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