Route Price Intelligence
Cheap Flights From Chicago to Washington Dc - Dulles
Live pricing benchmarks, monthly patterns, and historical lows for this route.
Typical Price
$270
Deals From
$230
Usually Costs
$230 – $299
Lowest We've Seen
$136
Based on 8,032 price pointshigh confidence
Monthly Price Guide
Jan
$271
Feb
$237
Mar
$238
Apr
$221
May
$267
Jun
$269
Jul
$277
Aug
$269
Sep
$277
Oct
$277
Nov
$277
Dec
$279
Cheapest Average Expensive
Best Time to Fly from Chicago to Washington Dc - Dulles
The cheapest time to fly from Chicago to Washington Dc - Dulles is typically April, when fares average around $221. The most expensive month tends to be December at around $279. For the best deals, consider flying in April, February, March.
Cheapest Fare Found (Last 90 Days)
The lowest round-trip price available on each day we checked
Best: $13683 price checksWorst: $180