
Popular airlines from Chicago O'Hare International Airport (ORD) to Washington Dulles International Airport (IAD)
- American Airlines
American Airlines
- Delta
Delta
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Cheap flights from Chicago (ORD) to Washington (IAD)
Prices were available within the past 7 days and start at CA $161 for one-way flights and CA $322 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.










Find the cheapest month to fly from Chicago (ORD) to Washington (IAD)
February is typically the cheapest month to fly
Graph displaying average flight prices per month
Origin airport | O'Hare Intl. |
Destination airport | Washington Dulles Intl. |
Airlines serving | American Airlines, Delta |
Roundtrip price | CA $322 |
Distance | 940 km |
Average flight time | 3 hours 1 min |
Chicago to Chantilly Flights
The easy way to book your flights from Chicago to Washington
With Expedia, it’s simple to find and book flights to Washington from Chicago whether you’re traveling for business or pleasure. Enter your travel dates, hit search, and choose your flight from 20 airlines that cover this route. There are Air Canada, Austrian, Avianca, Copa Airlines, ANA, Air New Zealand, United Airlines, Ethiopian Airlines nonstop flights to Washington Dulles Intl., too.
Choose your preferred carrier and cabin class with the advanced search tool and select your ideal departure time. Then, if you want, you can see just nonstop or refundable flights. And if you’re traveling last minute, just enter the date to check out flights from Chicago to Washington today, tomorrow, or this week.
Save dollars with cheap flights from O'Hare Intl., ORD to Washington Dulles Intl., IAD
Sort your search results by price to find great deals on your flight from Chicago to Washington—you get all your cheapest options first. Grab yourself a bargain now—the lowest price on flights to Washington from Chicago currently is just CA $322 rising to CA $552.
Here are more money-saving tips:
- Fly in September when flight prices are normally at their lowest
- Book about a month to 6 weeks before you travel for the best prices to Washington
- Avoid peak season and weekends when flights can cost more
- Early morning and late-night flights are sometimes cheaper, so try varying your travel times
- One surefire way to save money on your flight is to book your flight and hotel together with Expedia. Sometimes, the savings are so large that the flight is basically free!
Reasons to choose Expedia for your flight to Washington from Chicago
Whatever your destination, budget, or reason to travel, in just one quick search, you can choose from loads of flights, airlines, and cabin classes. The filters make it quick and easy to find your ideal flights, and if you choose one of the flexible options, you won’t be charged to change your flight. So book your flight to Washington with Expedia today.
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Top Routes from Chicago
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Top Routes to Washington
- Ottawa to Washington (YOW - IAD)
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- Halifax to Washington (YHZ - IAD)
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- Seattle to Washington (SEA - IAD)
- Montreal to Washington (YUL - IAD)
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- Kitchener to Washington (YKF - IAD)
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