Route Price Intelligence
Cheap Flights From Chicago to Washington Dc - Dulles
Live pricing benchmarks, monthly patterns, and historical lows for this route.
Typical Price
$276
Deals From
$225
Usually Costs
$225 – $299
Lowest We've Seen
$136
Based on 8,534 price pointshigh confidence
Monthly Price Guide
Jan
$289
Feb
$309
Mar
$312
Apr
$216
May
$201
Jun
$230
Jul
$230
Aug
$230
Sep
$289
Oct
$297
Nov
$299
Dec
$297
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 May, when fares average around $201. The most expensive month tends to be March at around $312. For the best deals, consider flying in May, April, June.
Cheapest Fare Found (Last 90 Days)
The lowest round-trip price available on each day we checked
Best: $13790 price checksWorst: $180