Find Cheap Flights from Chicago O'Hare International to Washington Dulles Intl (ORD - IAD)

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Thu 2/22
Thu 3/1
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Good to Know

Low Season:
December
Best time to beat the crowds
3%
expected price decrease
High Season:
July
Most popular time to fly
2%
expected price increase
Average Price:
$244
(avg. price over the last 2 weeks)
Good Deal:
$181
or less (round trip)

When to Book Flights from Chicago O'Hare International to Washington Dulles Intl

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 $181 or less.
The cheapest flight from Chicago O'Hare International to Washington Dulles Intl was found 62 days before departure, on average.
Book at least 3 weeks before departure in order to get a below-average price.
High season is considered to be June, July and August. The cheapest month to fly is December.
Morning departure is around 11% cheaper 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 International to Washington Dulles Intl Flights

How long does a flight from Chicago O'Hare International to Washington Dulles Intl take?
An average nonstop flight takes 8h 31m, covering a distance of 588 miles.
How many flights are there between Chicago O'Hare International and Washington Dulles Intl?
There are 441 (nonstop) flights between Chicago O'Hare International and Washington Dulles Intl per week, averaging 61 per day.
Which airlines provide the cheapest flights from Chicago O'Hare International to Washington Dulles Intl?
In the past 3 days, the cheapest round-trip tickets were found on United ($174) and Frontier ($198)
Do I need a passport to fly between Chicago O'Hare International and Washington Dulles Intl?
No.
Which airlines fly most frequently between Chicago O'Hare International and Washington Dulles Intl?
Air Canada (14 times daily), United (13 times daily), ANA (9 times daily) are the most frequent flyers on this route.
What’s the cheapest day of the week to fly Chicago O'Hare International to Washington Dulles Intl?
For Chicago O'Hare International to Washington Dulles Intl, Tuesday is the cheapest day to fly on average and Monday is the most expensive. Flying from Washington Dulles Intl back to Chicago O'Hare International, the best deals are generally found on Tuesday, with Tuesday being the most expensive.

Book cheap flights from Chicago O'Hare International to Washington Dulles Intl (round-trip)

Airports
Origin
Chicago
$174
only
$174
Destination
Washington
$174
only
$174
Tue, Apr 17
ORD
IAD
8h 45m
Wed, Apr 18
IAD
ORD
1h 57m
Trip: 2 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 69 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.4
ORD
IAD
Mediocre 3.3

Go

ORD
IAD
Excellent 8.0

Everything went pretty well minus the delayed flight from the start

Some older woman yelling at a teenager for "pushing her in the back of her seat" while in flight

ORD
IAD
Good 6.6

Service

Total disaster due to some snow, excessive delays

ORD
IAD
Good 6.0

Had to check a bag I've carried on several other times.

ORD
IAD
Excellent 10.0

The crew was very polite at every moment

I really liked everything

Mon, Apr 30
ORD
IAD
17h 11m
Tue, May 8
IAD
ORD
8h 29m
Trip: 9 days
6.1GoodShow reviews
Overall 6.1 Good
Based on 21 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
ORD
IAD
Excellent 8.0

Easy boarding easy check in

Nothing that bad, chairs are maybe a bit thin but not terribly uncomfortable

PHL
SJU
Good 6.0

boarding and treatment by staff wad excellent

$3 for a cup of coffee is outrageous.... other airlines at least include beverages and a snack (peanuts etc).

ORD
IAD
Mediocre 2.0

wait times kept changing and got totally ridiculous. my uber cost me twice as much and i was delayed 4 hours. never flying with you ever again.

ORD
IAD
Mediocre 2.0

My 10 month old pup had to have emergency gastro surgery 22 hours before we were to leave. Frontier would not waive the $99 re-ticketing fee per ticket. They said we still could have gone on the trip! Even though if my dog coded and they need my instruction and I was 33,000 ft in the air... First time we ever booked with them and it will be the last time! We spent 385.00 and are getting 158.00 back in a credit which we are donating the credit code to our local county charity in case some could use it for an emergency flight. Poor Frontier can't seem to be able to find a write over code to refund me my full value of tickets. My emergency wasn't on their radar. Heartless.

ORD
IAD
Excellent 10.0

This was the first time I have flown Frontier. Even with a checked bag fee ($30 each way), my total fare was still less than half of what it would have been for competitors the same week. The planes were clean, flights were on time, and the crew were extremely friendly and helpful!

There wasn't anything not to like! The experience was seriously better than I imagined it would be.

Mon, Mar 26
ORD
IAD
11h 29m
Tue, Mar 27
IAD
ORD
2h 02m
Trip: 2 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 69 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.4
ORD
IAD
Excellent 8.0

Everything went pretty well minus the delayed flight from the start

Some older woman yelling at a teenager for "pushing her in the back of her seat" while in flight

ORD
IAD
Excellent 10.0

Had fun watching free movies on my device, although the connection didn't work for the first leg. The plane was new/upgraded, a ton of legroom on my second leg Airbus.

ORD
IAD
Good 6.6

Service

Total disaster due to some snow, excessive delays

ORD
IAD
Excellent 10.0

temperature was right not blanket needed

they ignore me never offer me a drink and I was thirsty

ORD
IAD
Excellent 10.0

For the basic economy seat there was plenty of room and the staff was excellent. Honestly the best domestic flight I've taken in a long time.

Tue, May 1
ORD
IAD
8h 31m
Tue, May 8
IAD
ORD
8h 29m
Trip: 8 days
6.1GoodShow reviews
Overall 6.1 Good
Based on 21 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
ORD
IAD
Mediocre 3.3

The price

Both there and back our flight was delayed over an hour. The seats were very uncomfortable and with little leg room. when you check in on line it seems like you you don't have any other option but to pay for your seats. Don't do it-- just have them pick your seats-- you will be with your travel mate most likely. If money is a concern and you don't mind being delayed, then it is worth it. Otherwise don't do it!

PHX
MKE
Okay 4.0

Nothing

Everything

ORD
IAD
Mediocre 2.0

wait times kept changing and got totally ridiculous. my uber cost me twice as much and i was delayed 4 hours. never flying with you ever again.

ORD
IAD
Good 7.3

There wasn't any in flight entertainment and I didn't order food, so that's why my rating is neutral. Our flight back was 30 min early, so that was great.

ORD
IAD
Okay 4.3

All the extra expenses for seats, baggage, ect.

Mon, Apr 9
ORD
IAD
8h 45m
Tue, Apr 10
IAD
ORD
1h 57m
Trip: 2 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 69 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.4
ORD
IAD
Mediocre 3.3

Go

ORD
IAD
Mediocre 2.0

Again- nothing

This flight was canceled for me! Why am I being asked how I would rate it?!

ORD
IAD
Good 6.0

Had to check a bag I've carried on several other times.

ORD
IAD
Excellent 8.0

Everything went pretty well minus the delayed flight from the start

Some older woman yelling at a teenager for "pushing her in the back of her seat" while in flight

ORD
IAD
Excellent 9.0

Had to pay for movies and snacks.

Tue, May 8
ORD
IAD
8h 31m
Tue, May 15
IAD
ORD
23h 03m
Trip: 8 days
6.1GoodShow reviews
Overall 6.1 Good
Based on 21 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
ORD
IAD
Mediocre 2.0

My 10 month old pup had to have emergency gastro surgery 22 hours before we were to leave. Frontier would not waive the $99 re-ticketing fee per ticket. They said we still could have gone on the trip! Even though if my dog coded and they need my instruction and I was 33,000 ft in the air... First time we ever booked with them and it will be the last time! We spent 385.00 and are getting 158.00 back in a credit which we are donating the credit code to our local county charity in case some could use it for an emergency flight. Poor Frontier can't seem to be able to find a write over code to refund me my full value of tickets. My emergency wasn't on their radar. Heartless.

ORD
IAD
Excellent 10.0

This was the first time I have flown Frontier. Even with a checked bag fee ($30 each way), my total fare was still less than half of what it would have been for competitors the same week. The planes were clean, flights were on time, and the crew were extremely friendly and helpful!

There wasn't anything not to like! The experience was seriously better than I imagined it would be.

PHX
MKE
Okay 4.0

Nothing

Everything

ORD
IAD
Mediocre 3.3

The price

Both there and back our flight was delayed over an hour. The seats were very uncomfortable and with little leg room. when you check in on line it seems like you you don't have any other option but to pay for your seats. Don't do it-- just have them pick your seats-- you will be with your travel mate most likely. If money is a concern and you don't mind being delayed, then it is worth it. Otherwise don't do it!

ORD
IAD
Excellent 8.0

to expensive to cary on a bag.

Fri, Apr 13
ORD
IAD
8h 45m
Sat, Apr 14
IAD
ORD
1h 57m
Trip: 2 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 69 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.4
ORD
IAD
Mediocre 2.0

Again- nothing

This flight was canceled for me! Why am I being asked how I would rate it?!

ORD
IAD
Mediocre 3.0

This flight was delayed around 3 hours.

ORD
IAD
Excellent 9.0

Had to pay for movies and snacks.

ORD
IAD
Excellent 10.0

The crew was very polite at every moment

I really liked everything

ORD
IAD
Good 6.0

Had to check a bag I've carried on several other times.

Mon, Apr 16
ORD
IAD
8h 45m
Tue, Apr 17
IAD
ORD
1h 57m
Trip: 2 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 69 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.4
ORD
IAD
Mediocre 2.0

Again- nothing

This flight was canceled for me! Why am I being asked how I would rate it?!

ORD
IAD
Excellent 10.0

The crew was very polite at every moment

I really liked everything

ORD
IAD
Excellent 8.0

Everything went pretty well minus the delayed flight from the start

Some older woman yelling at a teenager for "pushing her in the back of her seat" while in flight

ORD
IAD
Mediocre 3.0

This flight was delayed around 3 hours.

ORD
IAD
Good 6.6

Service

Total disaster due to some snow, excessive delays

Sat, Apr 28
ORD
IAD
16h 05m
Sun, Apr 29
IAD
ORD
1h 57m
Trip: 2 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 69 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.4
ORD
IAD
Excellent 10.0

Had fun watching free movies on my device, although the connection didn't work for the first leg. The plane was new/upgraded, a ton of legroom on my second leg Airbus.

ORD
IAD
Excellent 8.0

Everything went pretty well minus the delayed flight from the start

Some older woman yelling at a teenager for "pushing her in the back of her seat" while in flight

ORD
IAD
Good 6.0

Had to check a bag I've carried on several other times.

ORD
IAD
Mediocre 3.3

Go

ORD
IAD
Good 6.6

Service

Total disaster due to some snow, excessive delays

Mon, Apr 30
ORD
IAD
8h 45m
Tue, May 1
IAD
ORD
1h 57m
Trip: 2 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 69 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.4
ORD
IAD
Mediocre 3.3

Go

ORD
IAD
Excellent 8.0

Everything went pretty well minus the delayed flight from the start

Some older woman yelling at a teenager for "pushing her in the back of her seat" while in flight

ORD
IAD
Good 6.0

Had to check a bag I've carried on several other times.

ORD
IAD
Excellent 10.0

For the basic economy seat there was plenty of room and the staff was excellent. Honestly the best domestic flight I've taken in a long time.

ORD
IAD
Mediocre 2.0

Again- nothing

This flight was canceled for me! Why am I being asked how I would rate it?!

Wed, May 2
ORD
IAD
8h 45m
Thu, May 3
IAD
ORD
1h 57m
Trip: 2 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 69 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.4
ORD
IAD
Excellent 9.0

Had to pay for movies and snacks.

ORD
IAD
Excellent 10.0

For the basic economy seat there was plenty of room and the staff was excellent. Honestly the best domestic flight I've taken in a long time.

ORD
IAD
Excellent 8.0

Everything went pretty well minus the delayed flight from the start

Some older woman yelling at a teenager for "pushing her in the back of her seat" while in flight

ORD
IAD
Mediocre 2.0

Again- nothing

This flight was canceled for me! Why am I being asked how I would rate it?!

ORD
IAD
Mediocre 3.3

Go

Sat, May 5
ORD
IAD
12h 07m
Sun, May 6
IAD
ORD
1h 57m
Trip: 2 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 69 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.4
ORD
IAD
Excellent 10.0

The crew was very polite at every moment

I really liked everything

ORD
IAD
Mediocre 2.0

Again- nothing

This flight was canceled for me! Why am I being asked how I would rate it?!

ORD
IAD
Good 6.6

Service

Total disaster due to some snow, excessive delays

ORD
IAD
Excellent 8.0

Everything went pretty well minus the delayed flight from the start

Some older woman yelling at a teenager for "pushing her in the back of her seat" while in flight

ORD
IAD
Mediocre 3.3

Go

Mon, May 7
ORD
IAD
8h 45m
Tue, May 8
IAD
ORD
1h 57m
Trip: 2 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 69 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.4
ORD
IAD
Good 6.6

Service

Total disaster due to some snow, excessive delays

ORD
IAD
Good 6.0

Had to check a bag I've carried on several other times.

ORD
IAD
Excellent 10.0

temperature was right not blanket needed

they ignore me never offer me a drink and I was thirsty

ORD
IAD
Excellent 8.0

Everything went pretty well minus the delayed flight from the start

Some older woman yelling at a teenager for "pushing her in the back of her seat" while in flight

ORD
IAD
Excellent 9.0

Had to pay for movies and snacks.

Mon, May 7
ORD
IAD
8h 45m
Tue, May 8
IAD
ORD
1h 57m
Trip: 2 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 69 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.4
ORD
IAD
Excellent 10.0

temperature was right not blanket needed

they ignore me never offer me a drink and I was thirsty

ORD
IAD
Mediocre 3.3

Go

ORD
IAD
Excellent 10.0

Had fun watching free movies on my device, although the connection didn't work for the first leg. The plane was new/upgraded, a ton of legroom on my second leg Airbus.

ORD
IAD
Excellent 10.0

For the basic economy seat there was plenty of room and the staff was excellent. Honestly the best domestic flight I've taken in a long time.

ORD
IAD
Excellent 9.0

Had to pay for movies and snacks.

Tue, May 8
ORD
IAD
8h 45m
Wed, May 9
IAD
ORD
1h 57m
Trip: 2 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 69 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.4
ORD
IAD
Excellent 9.0

Had to pay for movies and snacks.

ORD
IAD
Excellent 10.0

For the basic economy seat there was plenty of room and the staff was excellent. Honestly the best domestic flight I've taken in a long time.

ORD
IAD
Excellent 10.0

temperature was right not blanket needed

they ignore me never offer me a drink and I was thirsty

ORD
IAD
Mediocre 3.3

Go

ORD
IAD
Excellent 10.0

Had fun watching free movies on my device, although the connection didn't work for the first leg. The plane was new/upgraded, a ton of legroom on my second leg Airbus.

Sat, May 12
ORD
IAD
8h 45m
Sun, May 13
IAD
ORD
1h 57m
Trip: 2 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 69 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.4
ORD
IAD
Mediocre 2.0

Flight delayed- missed connection. No easy way to get Home to Vermont. Flew to Boston and rented car!

ORD
IAD
Good 6.0

Had to check a bag I've carried on several other times.

ORD
IAD
Excellent 9.0

Had to pay for movies and snacks.

ORD
IAD
Excellent 10.0

For the basic economy seat there was plenty of room and the staff was excellent. Honestly the best domestic flight I've taken in a long time.

ORD
IAD
Good 6.6

Service

Total disaster due to some snow, excessive delays

Sat, May 12
ORD
IAD
8h 45m
Sun, May 13
IAD
ORD
1h 57m
Trip: 2 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 69 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.4
ORD
IAD
Good 6.0

Had to check a bag I've carried on several other times.

ORD
IAD
Mediocre 2.0

Again- nothing

This flight was canceled for me! Why am I being asked how I would rate it?!

ORD
IAD
Excellent 10.0

temperature was right not blanket needed

they ignore me never offer me a drink and I was thirsty

ORD
IAD
Excellent 10.0

Had fun watching free movies on my device, although the connection didn't work for the first leg. The plane was new/upgraded, a ton of legroom on my second leg Airbus.

ORD
IAD
Excellent 10.0

The crew was very polite at every moment

I really liked everything

Mon, May 14
ORD
IAD
8h 45m
Tue, May 15
IAD
ORD
1h 57m
Trip: 2 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 69 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.4
ORD
IAD
Excellent 10.0

temperature was right not blanket needed

they ignore me never offer me a drink and I was thirsty

ORD
IAD
Mediocre 3.0

This flight was delayed around 3 hours.

ORD
IAD
Excellent 10.0

For the basic economy seat there was plenty of room and the staff was excellent. Honestly the best domestic flight I've taken in a long time.

ORD
IAD
Good 6.6

Service

Total disaster due to some snow, excessive delays

ORD
IAD
Excellent 10.0

Had fun watching free movies on my device, although the connection didn't work for the first leg. The plane was new/upgraded, a ton of legroom on my second leg Airbus.

Tue, May 15
ORD
IAD
12h 28m
Wed, May 16
IAD
ORD
1h 57m
Trip: 2 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 69 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.4
ORD
IAD
Excellent 10.0

temperature was right not blanket needed

they ignore me never offer me a drink and I was thirsty

ORD
IAD
Mediocre 3.3

Go

ORD
IAD
Mediocre 2.0

Again- nothing

This flight was canceled for me! Why am I being asked how I would rate it?!

ORD
IAD
Mediocre 3.0

This flight was delayed around 3 hours.

ORD
IAD
Excellent 9.0

Had to pay for movies and snacks.

Sat, May 19
ORD
IAD
8h 45m
Sun, May 20
IAD
ORD
1h 57m
Trip: 2 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 69 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.4
ORD
IAD
Good 6.0

Had to check a bag I've carried on several other times.

ORD
IAD
Excellent 10.0

The crew was very polite at every moment

I really liked everything

ORD
IAD
Excellent 10.0

For the basic economy seat there was plenty of room and the staff was excellent. Honestly the best domestic flight I've taken in a long time.

ORD
IAD
Mediocre 3.0

This flight was delayed around 3 hours.

ORD
IAD
Mediocre 3.3

Go

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Chicago O'Hare International to Washington Dulles Intl Flight Information

Flights Arrive in Washington Dulles Intl
Flights Depart from Chicago O'Hare International
Flight Price $174
Distance 588 miles
Airlines United, Frontier
*
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.