Cheap flights from Chicago to Washington Dulles
The lowest fare found is €101. The cheapest month to fly is October.
Search live pricesSearch round-trip pricesLowest price by month
| October | €101 |
| March | €158 |
| April | €140 |
When is the cheapest time to fly from Chicago to Washington Dulles?
Fares are typically lowest in October, starting from €101.
Popular routes
- Chicago → Washington
- Chicago → Nashville
- Chicago → Chicago Midway
- Chicago → Honolulu
- Chicago → Portland
- Chicago → St Louis
- Chicago → Raleigh
- Chicago → Sacramento
- Chicago → New Orleans
- Chicago → San Jose
- Chicago → Santa Ana
- Chicago → Oakland
Prices updated 2026-09-08