Cheap Flights From O'Hare Intl. (ORD) To Washington Dulles Intl. (IAD)

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Cheapest Flights from Chicago (ORD) to Washington (IAD)

The cheapest flights to Washington Dulles Intl. found within the past 7 days were CA $1,035 round trip and CA $217 one way. Prices and availability subject to change. Additional terms may apply.

Wed, Mar 11 - Wed, Mar 11
ORD
Chicago
IAD
Washington
CA $1,035 Roundtrip, found 5 days ago
CA $1,035
Roundtrip
found 5 days ago
Select United flight, departing Wed, Mar 11 from Chicago to Washington, returning Wed, Mar 11, priced at CA $1,035 found 5 days ago
Wed, Mar 11 - Wed, Mar 11
ORD
Chicago
IAD
Washington
CA $1,084 Roundtrip, found 5 days ago
CA $1,084
Roundtrip
found 5 days ago
Select United flight, departing Wed, Mar 11 from Chicago to Washington, returning Wed, Mar 11, priced at CA $1,084 found 5 days ago
Wed, Mar 11 - Wed, Mar 11
ORD
Chicago
IAD
Washington
CA $1,227 Roundtrip, found 5 days ago
CA $1,227
Roundtrip
found 5 days ago
Select United flight, departing Wed, Mar 11 from Chicago to Washington, returning Wed, Mar 11, priced at CA $1,227 found 5 days ago
Wed, Mar 11 - Wed, Mar 11
ORD
Chicago
IAD
Washington
CA $1,276 Roundtrip, found 5 days ago
CA $1,276
Roundtrip
found 5 days ago
Select United flight, departing Wed, Mar 11 from Chicago to Washington, returning Wed, Mar 11, priced at CA $1,276 found 5 days ago

Frequently asked questions

Are there direct flights from ORD to IAD?
Wander wisely and opt for a direct flight from O'Hare Intl. Airport (ORD) to IAD with United Airlines. This carrier is the smart choice if you're hoping to get to Sterling as speedily as possible.
What airlines fly from O'Hare Intl. Airport (ORD) to Washington Dulles Intl. Airport (IAD)?
Locked in the dates for your big adventure? Want to fly nonstop from Chicago to Sterling? With United Airlines offering up to 156 flights per month, you'll be cruising the skies soon enough.
What is the best day to buy a plane ticket?
Airfares offered on Friday tend to be the cheapest, according to flight demand on Travelocity.ca in 2021. Purchasing your airfares on a Thursday or Saturday can also provide better value, however our advice if you're looking to save money is to avoid booking on a Wednesday or Sunday. Our data shows that those two days have the highest ticket values on average, so keep this in mind if you're browsing flight deals.
What are the cheapest days to fly?
Frequent travellers may already know this, but earlier in the week is often the cheapest time to fly. Flights departing on a Monday are the cheapest of the week. Since flights towards the middle of the week tend to be more popular, this causes the prices to rise. This is why, on average, airfares booked on Travelocity.ca in 2021 were most expensive for Wednesday departures.
How far in advance can you book a flight?
Here's the deal: It is typically possible to start comparing international airfares on Travelocity.ca up to 12 months in advance. However, it does depend on the carrier as not all airlines release their prices that far out. According to our 2021 flight demand trends, last minute planners can still bag a bargain with some of the cheapest fares appearing 2-4 weeks prior to their travel dates.*According to flight demand on Travelocity.ca from January to December 2021. Savings are subject to change and may vary depending on selections made.
*Price based on the lowest price found within past 24 hours and based upon one night stay for two adults over the next thirty days. Prices and availability subject to change. Additional terms may apply.