Washington to Chicago
IADORD
Fly from Washington to Chicago starting at USD 82 with Frontier Airlines.
Best fare available on Oct 5, 2026.
Limited seats. Better plans. Book before it's gone.
Washington to Chicago cheapest flights this week
Washington to Chicago monthly flight fare trend
Sep
from USD 125
Oct
from USD 61
Nov
from USD 121
Dec
from USD 118
Jan
from USD 166
Feb
from USD 115
Airport Details
Origin
Washington
Washington Dulles International Airport (IAD)
Dulles, IAD
Zone
New York
Elev
312 ft
Destination
Chicago
Chicago O'Hare International Airport (ORD)
Chicago, ORD
Zone
Chicago
Elev
680 ft
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