IAD
Washington
CHI
Chicago
Washington → Chicago
Frontier Airlines · Round Trip · Nonstop
Save $66 (29% off)
Compared to the typical price of $230
$254
per person · round trip
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Flight Details
Cabin
Economy
Departs
May 15, 2026
Returns
May 17, 2026
Price History
Avg: $210
Low: $164
High: $254
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