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

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

The cheapest flights to O'Hare Intl. found within the past 7 days were round trip and CA $356 one way. Prices and availability subject to change. Additional terms may apply.

Frequently asked questions

Are there direct flights from Washington Dulles Intl. Airport (IAD) to O'Hare Intl. Airport (ORD)?
The only thing separating you and your next extraordinary adventure is just one flight. United Airlines is the only carrier that operates nonstop services from Washington Dulles Intl. Airport (IAD) to ORD, so it's a wise idea to book in advance.
What airlines fly from Washington Dulles Intl. Airport (IAD) to O'Hare Intl. Airport (ORD)?
Sorted out the dates for your trip? Looking to fly nonstop from Sterling to Chicago? With United Airlines offering as many as 156 flights per month, you'll be on your way before you know it.
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.

Popular Flight Routes from Washington (IAD)

Travelers at IAD love to visit these top cities. Roam to the top destinations from Washington (IAD) today with the cheap prices from Travelocity!

Popular Flight Routes from Chicago (ORD)

Travelers at ORD love to visit these top cities. Roam to the top destinations from Chicago(ORD) today with the cheap prices from Travelocity!

*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.