Route Price Intelligence
Cheap Flights From Chicago to Washington Dc - Dulles
Live pricing benchmarks, monthly patterns, and historical lows for this route.
Typical Price
$242
Great Deal
Under $177
Typical Range
$177 – $304
Lowest We've Seen
$136
Based on 271 price pointshigh confidence
Monthly Price Guide
Jan
$242
Feb
$242
Mar
$307
Apr
$307
May
—
Jun
—
Jul
$380
Aug
$225
Sep
$177
Oct
$177
Nov
$240
Dec
$242
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 October, when fares average around $177. The most expensive month tends to be July at around $380. For the best deals, consider flying in October, September, August.
Typical Price by Travel Month
Median round-trip fare for each month, with the typical price range, from our ongoing tracking of this route
Cheapest month: August44,484 fares analyzedTypical low: $267