Find cheap flights from Chicago O'Hare Airport to Washington Dulles Airport

ORD - IAD

Find cheap flights from Chicago O'Hare Airport to Washington Dulles Airport

Round-trip
Economy
Chicago (ORD)
Washington Dulles Intl
Fri 8/7
Fri 8/14
Any month
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Good to know

Low season

October Best time to beat the crowds with an average 7% drop in price.

High season

March Most popular time to fly with an average 7% increase in price.

Average price of a round-trip

$315 (avg. price over the last 2 weeks)

Good deal for a round-trip

$298 or less

When to book flights from Chicago O'Hare Intl to Washington Dulles Intl

Estimated round-trip price
Average price per month
Flight prices as travel date approaches
-1 day
-2 days

Top tips for finding a cheap flight

  • Looking for a cheap flight? 25% of our users found flights on this route for $237 or less.
  • The cheapest flight from Chicago O'Hare Airport to Washington Dulles Airport was found 54 days before departure, on average.
  • Book at least 2 weeks before departure in order to get a below-average price.
  • High season is considered to be February, March and April. The cheapest month to fly is October.
  • Morning departure is around 24% more expensive than an evening flight, on average*.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

FAQs for booking Chicago O'Hare Airport to Washington Dulles Airport flights

Which airlines have a flexible cancellation policy for flights from Chicago O'Hare Intl to Washington Dulles Intl due to COVID-19?

How long does a flight from Chicago O'Hare Airport to Washington Dulles Airport take?

How many flights are there between Chicago O'Hare Airport and Washington Dulles Airport?

Which airlines provide the cheapest flights from Chicago O'Hare Airport to Washington Dulles Airport?

Do I need a passport to fly between Chicago O'Hare Airport and Washington Dulles Airport?

Which airlines fly most frequently between Chicago O'Hare Airport and Washington Dulles Airport?

What’s the cheapest day of the week to fly Chicago O'Hare Airport to Washington Dulles Airport?

How does KAYAK find such low prices on flights from Chicago O'Hare Airport to Washington Dulles Airport?

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Chicago O'Hare Airport to Washington Dulles Airport?

What is the Hacker Fare option on flights from Chicago O'Hare Airport to Washington Dulles Airport?

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Chicago O'Hare Airport to Washington Dulles Airport?

Top 5 airlines serving Chicago O'Hare Intl to Washington Dulles Intl

Scores according to KAYAK customer reviews

8.0
Delta
Overall score based on 28,502 reviews
8.2
Boarding
7.8
Comfort
8.5
Crew
7.8
Entertainment
7.5
Food
Airline reviews
Read more about Delta

Book cheap flights from Chicago O'Hare Airport to Washington Dulles Airport

Recent round-trip flight deals

8/1
Sat
1 stop
Delta
3h 53m
ORD - IAD
8/8
Sat
1 stop
Delta
5h 57m
IAD - ORD
8/2
Sun
nonstop
Sun Country Air
1h 56m
ORD - IAD
8/6
Thu
nonstop
Sun Country Air
2h 06m
IAD - ORD
8/2
Sun
nonstop
Spirit Airlines
1h 55m
ORD - IAD
8/6
Thu
1 stop
Spirit Airlines
7h 10m
IAD - ORD
7/24
Fri
nonstop
Cape Air
1h 50m
ORD - IAD
7/26
Sun
nonstop
Cape Air
2h 16m
IAD - ORD
8/27
Thu
1 stop
Delta
6h 05m
ORD - IAD
8/30
Sun
2 stops
Delta
9h 45m
IAD - ORD
7/31
Fri
1 stop
Delta
4h 56m
ORD - IAD
8/2
Sun
1 stop
Delta
5h 15m
IAD - ORD
10/22
Thu
1 stop
Delta
4h 08m
ORD - IAD
10/26
Mon
1 stop
Delta
3h 57m
IAD - ORD
7/30
Thu
1 stop
Delta
5h 40m
ORD - IAD
8/3
Mon
1 stop
Delta
5h 09m
IAD - ORD
7/27
Mon
1 stop
Delta
6h 25m
ORD - IAD
8/2
Sun
1 stop
Delta
5h 03m
IAD - ORD
10/23
Fri
1 stop
Delta
4h 08m
ORD - IAD
10/25
Sun
1 stop
Delta
3h 57m
IAD - ORD
Show more results

Recent one-way flight deals

9/8
Tue
nonstop
Cape Air
1h 44m
ORD - IAD
8/4
Tue
1 stop
Delta
7h 00m
ORD - IAD
9/5
Sat
nonstop
Austrian Airlines
1h 48m
ORD - IAD
9/5
Sat
1 stop
Multiple Airlines
4h 12m
ORD - IAD
8/4
Tue
nonstop
Sun Country Air
1h 48m
ORD - IAD
8/7
Fri
1 stop
Delta
4h 19m
ORD - IAD
7/30
Thu
2 stops
Delta
7h 01m
ORD - IAD
7/28
Tue
2 stops
Delta
7h 39m
ORD - IAD
8/20
Thu
3 stops
Multiple Airlines
26h 36m
ORD - IAD
7/28
Tue
2 stops
Sun Country Air
13h 40m
ORD - IAD
8/5
Wed
3 stops
Multiple Airlines
58h 30m
ORD - IAD
8/3
Mon
1 stop
Delta
5h 56m
ORD - IAD
9/4
Fri
1 stop
Delta
5h 20m
ORD - IAD
8/2
Sun
2 stops
Multiple Airlines
15h 05m
ORD - IAD
8/3
Mon
2 stops
Multiple Airlines
16h 40m
ORD - IAD
8/1
Sat
3 stops
Multiple Airlines
27h 52m
ORD - IAD
8/4
Tue
3 stops
Multiple Airlines
27h 52m
ORD - IAD
8/4
Tue
3 stops
Multiple Airlines
27h 52m
ORD - IAD
8/15
Sat
3 stops
Multiple Airlines
29h 43m
ORD - IAD
7/31
Fri
3 stops
Multiple Airlines
27h 52m
ORD - IAD
Show more results
*
Prices are per person and are for e–tickets and include all taxes & fees in USD.

We attempt to get accurate prices, however, prices are not guaranteed.

Here's why:

We’re not the seller.
At KAYAK we don’t set the prices, so it’s not possible for us to guarantee what other companies are selling.

We compile tonnes of data for you
Our service lets you quickly and easily compare results from hundreds of travel sites at once. In this sense, KAYAK is a search engine and we can't guarantee prices we find.

Why aren’t prices accurate 100% of the time?
Prices on airline seats, hotel rooms and car rentals can change frequently. Several people may also be trying to buy the same travel option simultaneously. As a result, you may find, on occasion, that certain prices are no longer available.

If you have more questions or if you have a bad price to report to us,
please send us an and someone from our team will get back to you promptly.

^
The fares displayed include all taxes and fees for economy class travel and were found by the provider in the last 72 hours. Seats are limited and may not be available on all flights and days. Fares are subject to change and may not be available on all flights or dates of travel. Some carriers charge additional fees for extra checked bags. Please check the carriers' sites.
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