£119 Cheap Flights from Washington (IAD) to Chicago (ORD)

View £119 flight on Wed, 13 May 2026Opens in a new window

Popular airlines from Washington Dulles International Airport (IAD) to Chicago O'Hare International Airport (ORD)

  • Plan, book, fly with confidence

  • trending down icon

    Be in the know

    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon

    Book smarter

    Save up to 25% on select hotels after you book a flight*
  • payments icon

    Earn twice

    Earn your airline miles on top of our rewards
    Sign in

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

Prices were available within the past 7 days and start at £119 for one-way flights and £237 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Wed, 13 May - Sat, 16 May
IAD
Washington
ORD
Chicago
£237 Return, found 3 hours ago
£237
Return
found 3 hours ago
Select Delta flight, departing Wed, 13 May from Washington to Chicago, returning Sat, 16 May, priced at £237 found 3 hours ago
Delta
Wed, 13 May - Sat, 16 May
IAD
Washington
ORD
Chicago
£238 Return, found 3 hours ago
£238
Return
found 3 hours ago
Select Delta flight, departing Wed, 13 May from Washington to Chicago, returning Sat, 16 May, priced at £238 found 3 hours ago
American Airlines
Wed, 13 May - Sat, 16 May
IAD
Washington
ORD
Chicago
£253 Return, found 3 hours ago
£253
Return
found 3 hours ago
Select American Airlines flight, departing Wed, 13 May from Washington to Chicago, returning Sat, 16 May, priced at £253 found 3 hours ago
United
Wed, 13 May - Sat, 16 May
IAD
Washington
ORD
Chicago
£255 Return, found 3 hours ago
£255
Return
found 3 hours ago
Select United flight, departing Wed, 13 May from Washington to Chicago, returning Sat, 16 May, priced at £255 found 3 hours ago
Delta
Wed, 13 May - Sat, 16 May
IAD
Washington
ORD
Chicago
£261 Return, found 3 hours ago
£261
Return
found 3 hours ago
Select Delta flight, departing Wed, 13 May from Washington to Chicago, returning Sat, 16 May, priced at £261 found 3 hours ago
Delta
Wed, 13 May - Sat, 16 May
IAD
Washington
ORD
Chicago
£263 Return, found 3 hours ago
£263
Return
found 3 hours ago
Select Delta flight, departing Wed, 13 May from Washington to Chicago, returning Sat, 16 May, priced at £263 found 3 hours ago
American Airlines
Wed, 13 May - Sat, 16 May
IAD
Washington
ORD
Chicago
£270 Return, found 3 hours ago
£270
Return
found 3 hours ago
Select American Airlines flight, departing Wed, 13 May from Washington to Chicago, returning Sat, 16 May, priced at £270 found 3 hours ago
United
Wed, 13 May - Sat, 16 May
IAD
Washington
ORD
Chicago
£275 Return, found 3 hours ago
£275
Return
found 3 hours ago
Select United flight, departing Wed, 13 May from Washington to Chicago, returning Sat, 16 May, priced at £275 found 3 hours ago
American Airlines
Wed, 13 May - Sat, 16 May
IAD
Washington
ORD
Chicago
£280 Return, found 3 hours ago
£280
Return
found 3 hours ago
Select American Airlines flight, departing Wed, 13 May from Washington to Chicago, returning Sat, 16 May, priced at £280 found 3 hours ago
Alaska Airlines
Wed, 13 May - Sat, 16 May
IAD
Washington
ORD
Chicago
£330 Return, found 3 hours ago
£330
Return
found 3 hours ago
Select Alaska Airlines flight, departing Wed, 13 May from Washington to Chicago, returning Sat, 16 May, priced at £330 found 3 hours ago

Find the cheapest month to fly from Washington (IAD) to Chicago (ORD)

September is typically the cheapest month to fly

From £69 - £164 per traveller.

Graph displaying average flight prices per month

Flight from Washington to Chicago route information
Origin airport
Washington Dulles Intl.
Destination airport
O'Hare Intl.
Airlines serving
Alaska Airlines
Return price
£236
Distance
940 km
Average flight time
2 hours 28 mins

Compare flights from Washington to Chicago easily and book with confidence

For travelling on business or for pleasure, Expedia makes it easy to book your flights from Washington to Chicago. Operating between them flights per day, 20 airlines cover the route. And fly direct, getting you to O'Hare Intl. in just hours. If you have a preferred carrier, use our advanced search tool to find the right flight from Washington Dulles Intl. to O'Hare Intl..  

To make things even better, in the advanced search, you can also choose to fly economy, premium economy, business or first class, select your maximum number of stops, and pick your preferred departure and arrival time. You can also opt for refundable and direct flights. 

Grab a great deal on your flight from Washington Dulles Intl. (IAD) to O'Hare Intl. (ORD)

The easiest way to view the best deals on flights from Washington to Chicago today is to enter your travel dates and hit search. From here, you can sort your results by price to see the cheapest flights first. Right now, return flights from Washington Dulles Intl. to O'Hare Intl. start at just £237 and range up to £330.  

To find an even better deal, try  

  • being flexible on your dates – midweek flights can be cheaper
  • looking for other airports near Washington and Chicago
  • booking your flight during May, the cheapest month on this route
  • varying your flight times – early morning and late at night are sometimes cheaper 

Why you should book your Washington to Chicago flight with Expedia!

We cater for all flight types, cabin classes and airlines. So whether you’re booking flights from Washington Dulles Intl. to O'Hare Intl. for a budget break or a business trip with a bit of pleasure thrown in, we make it easy to secure the seat that’s right for you.  

Thanks to our supersized inventory that offers great choice all in one place, you know you’ll get a great deal with Expedia. Especially if you bundle your flight together with your hotel, you will unlock amazing savings. For added peace of mind, you can choose flexible bookings or filter to find refundable options, so you won’t pay a fee to change your flight.  

Frequently asked questions

How much is a flight from Dulles Intl. Airport to O'Hare Airport?
Round-trip flights from Washington Dulles Intl. Airport (IAD) to ORD start from £237. This is based on fares advertised within the last 7 days on Expedia for flights departing within the next year — book ASAP so you don't miss out. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Washington Dulles Intl. Airport (IAD) to O'Hare Airport?
Each air carrier has its own terms and conditions. If you do decide to cancel, follow the instructions on our Customer Service Portal.
How do I find cheap flights from IAD to ORD that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for Dulles Intl. Airport to O'Hare Intl. Airport (ORD) flights, you'll see a "no change fees" filter for you to select.
How far is the flight from Washington Dulles Intl. Airport (IAD) to O'Hare Intl. Airport (ORD)?
With a flight distance of 950 kilometres, it's just a hop from IAD to O'Hare Airport. It might be a quick journey, but it's still worth bringing something to read.
Which airlines fly direct from IAD to O'Hare Airport?
Offering 152 monthly flights, United Airlines (UA) is a great choice when flying straight from Washington Dulles Intl. Airport (IAD) to ORD.
Are Dulles Intl. Airport to O'Hare Intl. Airport (ORD) flight tickets cheaper when they're purchased at the last minute?
Flight prices go up and down like a yo-yo, so there are no guarantees. While last-minute flight deals between Washington Dulles Intl. Airport (IAD) and O'Hare Intl. Airport (ORD) are possible, it also makes sense to keep track of prices well before you fly. In fact, some air carriers publicize their prices up to a year ahead of the departure date. Expedia is constantly updating the best bargains around, so keep checking and be ready to lock in your seat when the price is low.

Explore a world of travel with Expedia

*Available to Expedia members.