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

Popular airlines from Chicago to Washington, DC (IAD-Washington Dulles Intl.)

  • notification illustration

    Be in the know

    Get alerts if flight prices drop or rise*
  • deals illustration

    Book smarter

    Save up to 55% on select hotels after you book a flight*
  • trophy illustration

    Earn twice

    Earn your airline miles on top of our rewards
    Sign in

Frequently asked questions

How much is a flight from Chicago, IL (CHI-All Airports) to Washington Dulles Intl. Airport (IAD)?
The lowest price advertised for a round-trip flight between Chicago, IL (CHI-All Airports) and Dulles Intl. Airport is . But you better act quick. This figure is based on fares offered within the last 7 days on Expedia for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Chicago, IL (CHI-All Airports) to IAD?
Most flights can be conveniently cancelled online, but whether you incur a fee depends on your airline. If you do have to cancel your holiday, follow the instructions in the Customer Service Portal.
How do I find cheap flights from Chicago, IL (CHI-All Airports) to Washington Dulles Intl. Airport (IAD) 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 Chicago, IL (CHI-All Airports) to IAD flights, you'll see a "no change fees" filter for you to select.
How far is the flight from Chicago, IL (CHI-All Airports) to IAD?
It's only 1,000 kilometres from Chicago, IL (CHI-All Airports) to IAD. Chances are you'll spend more time travelling to and from the airport than actually flying!
Which airlines fly direct from Chicago, IL (CHI-All Airports) to IAD?
United Airlines (UA) is one of the preferred choices for many travellers flying between Chicago, IL (CHI-All Airports) and Washington Dulles Intl. Airport (IAD). Choose from the 152 flights it offers on this route each month. You could also take a look at ticket prices with Southwest Airlines (WN). This airline operates 86 monthly flights between Illinois and Chantilly.
Are Chicago, IL (CHI-All Airports) to Washington Dulles Intl. Airport (IAD) flight tickets cheaper when they're purchased at the last minute?
Booking last minute from Chicago, IL (CHI-All Airports) to Washington Dulles Intl. Airport (IAD) can be hit-or-miss. You may be able to score a bargain, but you could also miss out entirely! If you'd rather play it safe and start planning your trip ahead of time, Expedia compares flight deals up to a year in advance. Just bear in mind that not all airlines advertise their prices that far in advance. Our advice? Check back often as prices are updated frequently.

Travel information

Origin airport
CHI-All Airports
Destination airport
Washington Dulles Intl.
Distance
1002 km

Book with confidence

Illinois to Chantilly Flights

Sometimes you just need to get out of town or maybe you’re looking for a change of scenery. Regardless of the reason, a flight from Illinois to Chantilly will do just the trick! Go on, plan to see all the famous landmarks and eat your weight in the local cuisine. Your trip is beckoning, so answer the call by packing your suitcase and filling your travel itinerary with exploring Chantilly.

Whether you’re flying for business or jet-setting on your personal time, you’ve come to the right place. Here at Expedia.com, we’ll pair you up with CHI to IAD flights that won’t make your bank account wince. Ready to temporarily leave behind Illinois for new horizons? Browse through our cheap airfare, and filter by flight times and dates until you find just what you had in mind. From flights without layovers to ones that arrive early in the morning, you’ll come across plane tickets that suit your travel preferences. You can even bundle your flight to IAD with hotels and car rentals to score even bigger savings.

All set to hit the clouds? Book your travel arrangements with us today and have left-over money to put toward your travel outings and adventures.

Illinois to Chantilly Flights
*Available to Expedia members.