Route Price Intelligence
Cheap Flights From Chicago to Washington Dc - Dulles
Live pricing benchmarks, monthly patterns, and historical lows for this route.
Typical Price
$289
Deals From
$230
Usually Costs
$230 – $300
Lowest We've Seen
$136
Based on 8,644 price pointshigh confidence
Monthly Price Guide
Jan
$289
Feb
$299
Mar
$350
Apr
$222
May
$205
Jun
$250
Jul
$269
Aug
$250
Sep
$289
Oct
$299
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 $205. The most expensive month tends to be March at around $350. 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: $13688 price checksWorst: $180