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CA $151 Cheap Flights from Chicago (ORD) to Washington (IAD)

View CA $151 flight on Tue, Oct 27, 2026Opens in a new window

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

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

Prices were available within the past 7 days and start at CA $151 for one-way flights and CA $365 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Wed, Oct 14 - Tue, Oct 20
ORD
Chicago
IAD
Washington
CA $365 Roundtrip, found 6 days ago
CA $365
Roundtrip
found 6 days ago
Select American Airlines flight, departing Wed, Oct 14 from Chicago to Washington, returning Tue, Oct 20, priced at CA $365 found 6 days ago
Delta
Sat, Dec 12 - Fri, Jan 1
ORD
Chicago
IAD
Washington
CA $367 Roundtrip, found 6 days ago
CA $367
Roundtrip
found 6 days ago
Select Delta flight, departing Sat, Dec 12 from Chicago to Washington, returning Fri, Jan 1, priced at CA $367 found 6 days ago
American Airlines
Fri, Oct 23 - Thu, Oct 29
ORD
Chicago
IAD
Washington
CA $382 Roundtrip, found 4 days ago
CA $382
Roundtrip
found 4 days ago
Select American Airlines flight, departing Fri, Oct 23 from Chicago to Washington, returning Thu, Oct 29, priced at CA $382 found 4 days ago
American Airlines
Wed, Oct 14 - Tue, Oct 20
ORD
Chicago
IAD
Washington
CA $387 Roundtrip, found 6 days ago
CA $387
Roundtrip
found 6 days ago
Select American Airlines flight, departing Wed, Oct 14 from Chicago to Washington, returning Tue, Oct 20, priced at CA $387 found 6 days ago
United
Wed, Oct 14 - Tue, Oct 20
ORD
Chicago
IAD
Washington
CA $407 Roundtrip, found 6 days ago
CA $407
Roundtrip
found 6 days ago
Select United flight, departing Wed, Oct 14 from Chicago to Washington, returning Tue, Oct 20, priced at CA $407 found 6 days ago
Delta
Sat, Dec 12 - Fri, Jan 1
ORD
Chicago
IAD
Washington
CA $424 Roundtrip, found 6 days ago
CA $424
Roundtrip
found 6 days ago
Select Delta flight, departing Sat, Dec 12 from Chicago to Washington, returning Fri, Jan 1, priced at CA $424 found 6 days ago
Delta
Wed, Oct 14 - Tue, Oct 20
ORD
Chicago
IAD
Washington
CA $431 Roundtrip, found 6 days ago
CA $431
Roundtrip
found 6 days ago
Select Delta flight, departing Wed, Oct 14 from Chicago to Washington, returning Tue, Oct 20, priced at CA $431 found 6 days ago
United
Wed, Oct 14 - Tue, Oct 20
ORD
Chicago
IAD
Washington
CA $432 Roundtrip, found 6 days ago
CA $432
Roundtrip
found 6 days ago
Select United flight, departing Wed, Oct 14 from Chicago to Washington, returning Tue, Oct 20, priced at CA $432 found 6 days ago
United
Wed, Oct 14 - Tue, Oct 20
ORD
Chicago
IAD
Washington
CA $436 Roundtrip, found 6 days ago
CA $436
Roundtrip
found 6 days ago
Select United flight, departing Wed, Oct 14 from Chicago to Washington, returning Tue, Oct 20, priced at CA $436 found 6 days ago
Alaska Airlines
Thu, Oct 22 - Sun, Oct 25
ORD
Chicago
IAD
Washington
CA $888 Roundtrip, found 3 days ago
CA $888
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Thu, Oct 22 from Chicago to Washington, returning Sun, Oct 25, priced at CA $888 found 3 days ago

Frequently asked questions

How much does a flight from Chicago, IL (ORD-O'Hare Intl.) to Washington, DC (IAD-Washington Dulles Intl.) cost?
You can find cheap one-way flights from CA $151 and cheap return flights from CA $365 ORD to IAD with Expedia. One-way flights typically cost between CA$544 and CA$1158. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when ORD to IAD ticket fares go up or down.
What is the cheapest month to fly from Chicago, IL (ORD-O'Hare Intl.) to Washington, DC (IAD-Washington Dulles Intl.)?
The cheapest months to fly from ORD to IAD are typically during off-peak season when demand is low. Traveling in off-peak or shoulder months is usually a good way to secure cheap tickets, just remember to avoid flying during holidays if you are able to. Use the calendar view in your search to see which months have low fares on this route.
Which airlines fly direct from Chicago, IL (ORD-O'Hare Intl.) to Washington, DC (IAD-Washington Dulles Intl.)?
Only one airline offers direct flights from Chicago, IL (ORD-O'Hare Intl.) to Washington, DC (IAD-Washington Dulles Intl.). United operates 64 direct flights from ORD to IAD every week.
How do I find cheap flights from Chicago, IL (ORD-O'Hare Intl.) to Washington, DC (IAD-Washington Dulles Intl.)?
To find a cheap flight from Chicago, IL (ORD-O'Hare Intl.) to Washington, DC (IAD-Washington Dulles Intl.), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best airline to fly with from Chicago, IL (ORD-O'Hare Intl.) to Washington, DC (IAD-Washington Dulles Intl.)?
The best airline to fly with from Chicago, IL (ORD-O'Hare Intl.) to Washington, DC (IAD-Washington Dulles Intl.) will differ from traveler to traveler. If you like to fly early, United offers early morning flights. If price is the most important factor, United typically offers the lowest fares. United offers the most daily flights from Chicago, IL (ORD-O'Hare Intl.) to Washington, DC (IAD-Washington Dulles Intl.), which is great if flexibility is what you value most. The best carrier for this journey could also be the one you have a loyalty membership with, as flying with that airline or another airline within the same alliance could help you collect points or enjoy lounge access.
What is the best time to fly from Chicago, IL (ORD-O'Hare Intl.) to Washington, DC (IAD-Washington Dulles Intl.)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
How many flights per day from Chicago, IL (ORD-O'Hare Intl.) to Washington, DC (IAD-Washington Dulles Intl.)?
You'll find approximately 9 nonstop flights per day from Chicago O'Hare International (ORD) to Washington Dulles International (IAD). For even more choices, look at flights that include layovers, as there are around 115 connecting flights per day. Some common connection points include Hartsfield-Jackson Atlanta International (ATL), Charlotte-Douglas International (CLT), and Detroit Metropolitan Wayne County (DTW).
What is the earliest flight from Chicago, IL (ORD-O'Hare Intl.) to Washington, DC (IAD-Washington Dulles Intl.)?
The earliest flight from Chicago O'Hare International Airport (ORD) to Washington Dulles International Airport (IAD) typically departs around 12:00 AM local time, operated by American Airlines. This is a seasonal service, active only in December. An early departure like this can help you make the most of your time at your destination. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What day of the week has the most flights from Chicago, IL (ORD-O'Hare Intl.) to Washington, DC (IAD-Washington Dulles Intl.)?
You'll generally find the most flights from Chicago O'Hare International Airport (ORD) to Washington Dulles International Airport (IAD) on a Friday, with around 57 flights available. This gives you a good selection of options for your travel plans. Major airlines on this route include United, Delta, and American Airlines. Fridays offer notably more flight options compared to other days of the week, making it a popular choice for travellers.
What are the most popular departure times for flights from Chicago, IL (ORD-O'Hare Intl.) to Washington, DC (IAD-Washington Dulles Intl.)?
The most popular departure times for flights from Chicago, IL (ORD-O'Hare Intl.) to Washington, DC (IAD-Washington Dulles Intl.) are in the morning, from 6am to 9am. Many major carriers, including United, Delta and American Airlines, offer flights during this window. Many travellers prefer these times as they allow for an early start to their day in Washington, DC.
How long does it take to fly from Chicago, IL (ORD-O'Hare Intl.) to Washington, DC (IAD-Washington Dulles Intl.)?
When flying from Chicago, IL (ORD-O'Hare Intl.) to Washington, DC (IAD-Washington Dulles Intl.), you're looking at a distance of about 946 kilometres. A nonstop flight typically takes around 2 hours. If you opt for a one-stop flight, your travel time will be longer, usually around 4 hours 30 minutes. Flights with two or more stops generally take even longer, averaging about 9 hours 30 minutes. Keep in mind that actual flight times can vary due to factors like wind patterns and air traffic.
Can you fly business or first class from Chicago, IL (ORD-O'Hare Intl.) to Washington, DC (IAD-Washington Dulles Intl.)?
Yes, you can fly business class or first class between ORD and IAD. Airlines that offer business class service on this route include:
  • Frontier Airlines
  • Delta
First class cabins are available on:
  • Alaska Airlines
  • Delta
  • United
  • American Airlines
How do I earn miles on a Chicago, IL (ORD-O'Hare Intl.) to Washington, DC (IAD-Washington Dulles Intl.) flight with Expedia?
It's easy to earn miles on a Chicago, IL (ORD-O'Hare Intl.) to Washington, DC (IAD-Washington Dulles Intl.) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Washington, DC (IAD) from Chicago, IL (ORD)?
If you're planning to travel to Washington from O'Hare Intl. (ORD), you can fly directly into Washington Dulles Intl. (IAD). Some flights may connect through major hubs like LaGuardia (LGA), Indianapolis Intl. (IND), or Pittsburgh Intl. (PIT) before reaching Washington. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Chicago, IL (ORD-O'Hare Intl.) to Washington, DC (IAD-Washington Dulles Intl.) at the last minute?
Typically, booking a last minute flight from Chicago, IL (ORD-O'Hare Intl.) to Washington, DC (IAD-Washington Dulles Intl.) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Chicago, IL (ORD-O'Hare Intl.) to Washington, DC (IAD-Washington Dulles Intl.) flight and hotel package?
Securing a Chicago, IL (ORD-O'Hare Intl.) to Washington, DC (IAD-Washington Dulles Intl.) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Chicago, IL (ORD) to Washington, DC (IAD)?
If you booked your Chicago, IL (ORD) to Washington, DC (IAD) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
O'Hare Intl.
Destination airport
Washington Dulles Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, United
Roundtrip price
CA $365
Distance
940 km
Average flight time
3 hours 4 mins

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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 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 $365 rising to CA $888.  

Here are more money-saving tips: 

  • Fly in October 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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