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

Search hundreds of travel sites at once for deals on flights to Chicago O'Hare International

Fri 11/24
Fri 12/1
Any month
Compare vs. KAYAK |

Good to Know

Low Season:
February
Best time to beat the crowds
2%
expected price decrease
High Season:
October
Most popular time to fly
2%
expected price increase
Average Price:
$301
(avg. price over the last 2 weeks)
Good Deal:
$189
or less (round trip)

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

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 $189 or less.
The cheapest flight from Washington Dulles Intl to Chicago O'Hare International was found 47 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 September, October and November. The cheapest month to fly is February.
Morning departure is around 4% 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 Washington Dulles Intl to Chicago O'Hare International Flights

How long does a flight from Washington Dulles Intl to Chicago O'Hare International take?
An average nonstop flight takes 2h 02m, covering a distance of 588 miles.
How many flights are there between Washington Dulles Intl and Chicago O'Hare International?
There are 453 (nonstop) flights between Washington Dulles Intl and Chicago O'Hare International per week, averaging 66 per day.
Which airlines provide the cheapest flights from Washington Dulles Intl to Chicago O'Hare International?
In the past 3 days, the cheapest round-trip tickets were found on Frontier ($141), United ($207) and Multiple Airlines ($213).
Do I need a passport to fly between Washington Dulles Intl and Chicago O'Hare International?
No.
Which airlines fly most frequently between Washington Dulles Intl and Chicago O'Hare International?
Air Canada (15 times daily), United (14 times daily), South African (8 times daily) are the most frequent flyers on this route.
What’s the cheapest day of the week to fly Washington Dulles Intl to Chicago O'Hare International?
For Washington Dulles Intl to Chicago O'Hare International, Tuesday is the cheapest day to fly on average and Monday is the most expensive. Flying from Chicago O'Hare International back to Washington Dulles Intl, the best deals are generally found on Tuesday, with Thursday being the most expensive.

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

Airports
Origin
Washington
$141
only
$141
Destination
Chicago
$141
only
$141
Tue, May 22
IAD
ORD
2h 14m
Wed, May 23
ORD
IAD
1h 55m
Trip: 2 days
5.2OkayShow reviews
Overall 5.2 Okay
Based on 30 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
IAD
ORD
Mediocre 2.0

This flight was canceled months ago and I was not informed until around 2 weeks ago. Had to rebook at a different airline and Airport.!! Not sure why Kayak never informed me!! I would love to speak to someone - my. Elk is 703-731-7994

IAD
ORD
Excellent 8.0

Everything went well -- no frills - but a GREAT price!

IAD
ORD
Mediocre 2.0

Nothing

Everything

IAD
ORD
Mediocre 3.0

Crew did the best they could but I am sure were embarrassed to work for Frontier

Flight was over 31/2hours late and took off at 1:25am. I received a $15 food coupon for my inconvenience and nothing was open to even get water and your airline told me I could use it when I land at 2:30am in Chicago..give me money off charging me for my seat and my luggage for this inconvenience. I arrived in my home at 4:00am and I have work to go to today after 2 hours of sleep!

IAD
ORD
Mediocre 3.6

I received travel updates from other websites before I heard from Frontier. The boarding pass kiosk was broken so I couldn't print my boarding pass when I arrived, and there was no one working the desk.

Wed, Dec 6
IAD
ORD
2h 06m
Sat, Dec 9
ORD
IAD
1h 51m
Trip: 4 days
7.1GoodShow reviews
Overall 7.1 Good
Based on 64 reviews
Overall
7.2
Boarding
7.3
Comfort
6.9
Crew
7.7
Entertainment
6.5
Food
6.4
IAD
ORD
Mediocre 2.6

We have to pay for entertainment The flight wasn't smooth honestly one of the worst ever Even counting the combat flights that I took to Iraq seriously I almost vomited and that never ever happened to me on a flight

IAD
ORD
Mediocre 2.0

Nothing

My connecting flight from Chicago to Madison was cancelled with no explanation and no other alternatives provided, other than to get a hotel in Chicago and try to catch a flight to Madison the next day. United said they would not cover the cost of transportation to a hotel or the cost of the hotel. In addition, my luggage was misplaced and sent to Madison and could not be located. The number United provided to me to check on the whereabouts of my bag no one ever answered, even though I called multiple, multiple times.

IAD
ORD
Mediocre 2.0

Worst shittiest experience! Delayed by 3 hours

IAD
ORD
Good 7.3

Everything for this flight was as expected for my ticket purchase.

I had no problems with this flight.

IAD
ORD
Excellent 9.0

No food

Sun, Dec 17
IAD
ORD
30h 53m
Tue, Dec 19
ORD
IAD
24h 02m
Trip: 3 days
Overall 0.0 Poor
Based on 0 reviews
Tue, Apr 10
IAD
ORD
2h 12m
Sat, Apr 14
ORD
IAD
1h 52m
Trip: 5 days
5.2OkayShow reviews
Overall 5.2 Okay
Based on 30 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
IAD
ORD
Mediocre 3.0

We left on time

You have to buy drinks and snacks nothing is complimentary Seats are not reclinable (well mine wasn't) maybe b/c I paid $13 instead of $20 for it (ridiculous to have to pay for a seat, include it in the flight price)

IAD
ORD
Okay 5.3

cheap flight, but they make up for it with secret fees for your seat and baggage

Our flight kept getting delayed. We would get a text message every 30 minutes or so to update us that the flight would be pushed back even further.

IAD
ORD
Mediocre 2.0

Nothing

Everything

IAD
ORD
Excellent 8.0

It wasn't a full flight. We were able to board with no line.

This was no a good flight but at little fault to the airline. Guest was having a seizure and there were multiple babies crying the length of the flight.

IAD
ORD
Mediocre 3.6

I received travel updates from other websites before I heard from Frontier. The boarding pass kiosk was broken so I couldn't print my boarding pass when I arrived, and there was no one working the desk.

Thu, May 3
IAD
ORD
2h 14m
Tue, May 8
ORD
IAD
1h 55m
Trip: 6 days
5.2OkayShow reviews
Overall 5.2 Okay
Based on 30 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
IAD
ORD
Mediocre 3.0

We left on time

You have to buy drinks and snacks nothing is complimentary Seats are not reclinable (well mine wasn't) maybe b/c I paid $13 instead of $20 for it (ridiculous to have to pay for a seat, include it in the flight price)

IAD
ORD
Good 6.0

The flight attendants were funny.

Thought I was saving money until I discovered that even carry on luggage had a charge ($40)!

IAD
ORD
Mediocre 3.0

Crew did the best they could but I am sure were embarrassed to work for Frontier

Flight was over 31/2hours late and took off at 1:25am. I received a $15 food coupon for my inconvenience and nothing was open to even get water and your airline told me I could use it when I land at 2:30am in Chicago..give me money off charging me for my seat and my luggage for this inconvenience. I arrived in my home at 4:00am and I have work to go to today after 2 hours of sleep!

IAD
ORD
Okay 4.5

That we eventually arrived

That we arrived 3.5 hours after we were supposed to

IAD
ORD
Mediocre 2.0

Nothing

Everything

Sat, Dec 16
IAD
ORD
2h 13m
Mon, Dec 18
ORD
IAD
1h 45m
Trip: 3 days
7.1GoodShow reviews
Overall 7.1 Good
Based on 64 reviews
Overall
7.2
Boarding
7.3
Comfort
6.9
Crew
7.7
Entertainment
6.5
Food
6.4
IAD
ORD
Mediocre 2.6

We have to pay for entertainment The flight wasn't smooth honestly one of the worst ever Even counting the combat flights that I took to Iraq seriously I almost vomited and that never ever happened to me on a flight

IAD
ORD
Okay 4.0

Extended layover by over an hour

IAD
ORD
Good 7.0

Everything was fine but not having the option of personal device entertainment was annoying, really annoying, I don't appreciate that kind of cheapness annoying.

No personal device entertainment and I'm 5'2 and my legs felt cramped, I felt sorry for the two guys sitting next to me

IAD
ORD
Good 6.6

Nice crew and entertainment

3 hrs delay

IAD
ORD
Excellent 9.0

No food

Fri, Apr 27
IAD
ORD
2h 12m
Mon, Apr 30
ORD
IAD
1h 52m
Trip: 4 days
5.2OkayShow reviews
Overall 5.2 Okay
Based on 30 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
IAD
ORD
Okay 4.5

That we eventually arrived

That we arrived 3.5 hours after we were supposed to

IAD
ORD
Mediocre 2.0

Nothing

Everything

IAD
ORD
Mediocre 3.0

Crew did the best they could but I am sure were embarrassed to work for Frontier

Flight was over 31/2hours late and took off at 1:25am. I received a $15 food coupon for my inconvenience and nothing was open to even get water and your airline told me I could use it when I land at 2:30am in Chicago..give me money off charging me for my seat and my luggage for this inconvenience. I arrived in my home at 4:00am and I have work to go to today after 2 hours of sleep!

IAD
ORD
Mediocre 2.0

This flight was canceled months ago and I was not informed until around 2 weeks ago. Had to rebook at a different airline and Airport.!! Not sure why Kayak never informed me!! I would love to speak to someone - my. Elk is 703-731-7994

IAD
ORD
Okay 5.3

cheap flight, but they make up for it with secret fees for your seat and baggage

Our flight kept getting delayed. We would get a text message every 30 minutes or so to update us that the flight would be pushed back even further.

Mon, Dec 18
IAD
ORD
5h 51m
Fri, Dec 22
ORD
IAD
6h 35m
Trip: 5 days
8.1ExcellentShow reviews
Overall 8.1 Excellent
Based on 6916 reviews
Overall
8.2
Boarding
8.2
Comfort
8.3
Crew
8.5
Entertainment
8.0
Food
7.8
LAX
JFK
Excellent 9.3

I arrived 3 hours early and was able to switch to an earlier flight.

CHS
JFK
Excellent 9.0

Didn’t have free WiFi on flight

RDU
JFK
Good 7.0

Good experience. Staff were friendly, efficient, and professional.

N/A

JFK
LAX
Excellent 10.0

Lots of leg room and good entertainment.

FLL
EWR
Okay 4.3

No WiFi and tvs were not working

Tue, Jan 2
IAD
ORD
2h 03m
Sat, Jan 6
ORD
IAD
1h 51m
Trip: 5 days
7.1GoodShow reviews
Overall 7.1 Good
Based on 64 reviews
Overall
7.2
Boarding
7.3
Comfort
6.9
Crew
7.7
Entertainment
6.5
Food
6.4
IAD
ORD
Okay 4.0

Nothing

Having to depart from another airport

IAD
ORD
Good 7.3

Everything for this flight was as expected for my ticket purchase.

I had no problems with this flight.

IAD
ORD
Mediocre 2.0

Worst shittiest experience! Delayed by 3 hours

IAD
ORD
Okay 4.0

Extended layover by over an hour

IAD
ORD
Excellent 10.0

Omg the movie selection was amazing!!!!

Wed, Jan 3
IAD
ORD
2h 10m
Mon, Jan 8
ORD
IAD
1h 50m
Trip: 6 days
7.1GoodShow reviews
Overall 7.1 Good
Based on 64 reviews
Overall
7.2
Boarding
7.3
Comfort
6.9
Crew
7.7
Entertainment
6.5
Food
6.4
IAD
ORD
Okay 5.6

No leg room

IAD
ORD
Okay 4.0

Nothing

Having to depart from another airport

IAD
ORD
Good 7.0

Everything was fine but not having the option of personal device entertainment was annoying, really annoying, I don't appreciate that kind of cheapness annoying.

No personal device entertainment and I'm 5'2 and my legs felt cramped, I felt sorry for the two guys sitting next to me

IAD
ORD
Okay 4.0

Extended layover by over an hour

IAD
ORD
Mediocre 2.6

We have to pay for entertainment The flight wasn't smooth honestly one of the worst ever Even counting the combat flights that I took to Iraq seriously I almost vomited and that never ever happened to me on a flight

Wed, Jan 31
IAD
ORD
2h 11m
Tue, Feb 13
ORD
IAD
1h 51m
Trip: 14 days
7.1GoodShow reviews
Overall 7.1 Good
Based on 64 reviews
Overall
7.2
Boarding
7.3
Comfort
6.9
Crew
7.7
Entertainment
6.5
Food
6.4
IAD
ORD
Excellent 9.0

No food

IAD
ORD
Excellent 10.0

Great fly very attenty personal

IAD
ORD
Excellent 10.0

Omg the movie selection was amazing!!!!

IAD
ORD
Good 6.6

Nice crew and entertainment

3 hrs delay

IAD
ORD
Good 7.0

Everything was fine but not having the option of personal device entertainment was annoying, really annoying, I don't appreciate that kind of cheapness annoying.

No personal device entertainment and I'm 5'2 and my legs felt cramped, I felt sorry for the two guys sitting next to me

Thu, Nov 30
IAD
ORD
16h 39m
Sun, Dec 3
ORD
IAD
30h 50m
Trip: 4 days
Overall 0.0 Poor
Based on 0 reviews
Wed, Feb 14
IAD
ORD
2h 08m
Sat, Feb 17
ORD
IAD
1h 45m
Trip: 4 days
7.1GoodShow reviews
Overall 7.1 Good
Based on 64 reviews
Overall
7.2
Boarding
7.3
Comfort
6.9
Crew
7.7
Entertainment
6.5
Food
6.4
IAD
ORD
Excellent 10.0

Omg the movie selection was amazing!!!!

IAD
ORD
Good 7.0

Everything was fine but not having the option of personal device entertainment was annoying, really annoying, I don't appreciate that kind of cheapness annoying.

No personal device entertainment and I'm 5'2 and my legs felt cramped, I felt sorry for the two guys sitting next to me

IAD
ORD
Mediocre 2.0

Worst shittiest experience! Delayed by 3 hours

IAD
ORD
Mediocre 2.6

We have to pay for entertainment The flight wasn't smooth honestly one of the worst ever Even counting the combat flights that I took to Iraq seriously I almost vomited and that never ever happened to me on a flight

IAD
ORD
Good 6.6

Nice crew and entertainment

3 hrs delay

Thu, Nov 30
IAD
ORD
30h 46m
Sun, Dec 3
ORD
IAD
30h 50m
Trip: 4 days
5.2OkayShow reviews
Overall 5.2 Okay
Based on 30 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
IAD
ORD
Okay 5.3

cheap flight, but they make up for it with secret fees for your seat and baggage

Our flight kept getting delayed. We would get a text message every 30 minutes or so to update us that the flight would be pushed back even further.

IAD
ORD
Excellent 8.0

Everything went well -- no frills - but a GREAT price!

IAD
ORD
Good 6.0

The flight attendants were funny.

Thought I was saving money until I discovered that even carry on luggage had a charge ($40)!

IAD
ORD
Excellent 8.0

It wasn't a full flight. We were able to board with no line.

This was no a good flight but at little fault to the airline. Guest was having a seizure and there were multiple babies crying the length of the flight.

IAD
ORD
Okay 4.3

Sleek new seats. i

Budget friendly parents not controlling their kids that kept screaming and kicking my seat. Very rude and crew didn't do anything about it. The whole plane heard these kids screaming.

Sat, Feb 24
IAD
ORD
2h 13m
Tue, Feb 27
ORD
IAD
1h 52m
Trip: 4 days
7.1GoodShow reviews
Overall 7.1 Good
Based on 64 reviews
Overall
7.2
Boarding
7.3
Comfort
6.9
Crew
7.7
Entertainment
6.5
Food
6.4
IAD
ORD
Okay 4.0

Extended layover by over an hour

IAD
ORD
Mediocre 2.6

We have to pay for entertainment The flight wasn't smooth honestly one of the worst ever Even counting the combat flights that I took to Iraq seriously I almost vomited and that never ever happened to me on a flight

IAD
ORD
Good 6.6

Nice crew and entertainment

3 hrs delay

IAD
ORD
Okay 5.6

No leg room

IAD
ORD
Excellent 9.0

No food

Thu, Mar 1
IAD
ORD
2h 02m
Mon, Mar 5
ORD
IAD
1h 52m
Trip: 5 days
7.1GoodShow reviews
Overall 7.1 Good
Based on 64 reviews
Overall
7.2
Boarding
7.3
Comfort
6.9
Crew
7.7
Entertainment
6.5
Food
6.4
IAD
ORD
Excellent 9.0

No food

IAD
ORD
Good 6.6

Nice crew and entertainment

3 hrs delay

IAD
ORD
Mediocre 2.6

We have to pay for entertainment The flight wasn't smooth honestly one of the worst ever Even counting the combat flights that I took to Iraq seriously I almost vomited and that never ever happened to me on a flight

IAD
ORD
Okay 4.0

Extended layover by over an hour

IAD
ORD
Okay 5.6

No leg room

Sat, Mar 24
IAD
ORD
2h 07m
Mon, Mar 26
ORD
IAD
1h 44m
Trip: 3 days
7.1GoodShow reviews
Overall 7.1 Good
Based on 64 reviews
Overall
7.2
Boarding
7.3
Comfort
6.9
Crew
7.7
Entertainment
6.5
Food
6.4
IAD
ORD
Excellent 10.0

Great fly very attenty personal

IAD
ORD
Excellent 9.0

No food

IAD
ORD
Okay 5.6

No leg room

IAD
ORD
Good 7.3

Everything for this flight was as expected for my ticket purchase.

I had no problems with this flight.

IAD
ORD
Good 6.6

Nice crew and entertainment

3 hrs delay

Fri, Jan 12
IAD
ORD
14h 12m
Sun, Jan 14
ORD
IAD
4h 28m
Trip: 3 days
7.1GoodShow reviews
Overall 7.1 Good
Based on 64 reviews
Overall
7.2
Boarding
7.3
Comfort
6.9
Crew
7.7
Entertainment
6.5
Food
6.4
IAD
ORD
Good 7.3

Everything for this flight was as expected for my ticket purchase.

I had no problems with this flight.

IAD
ORD
Okay 4.0

Nothing

Having to depart from another airport

IAD
ORD
Okay 4.0

Extended layover by over an hour

IAD
ORD
Mediocre 2.0

Worst shittiest experience! Delayed by 3 hours

IAD
ORD
Mediocre 2.6

We have to pay for entertainment The flight wasn't smooth honestly one of the worst ever Even counting the combat flights that I took to Iraq seriously I almost vomited and that never ever happened to me on a flight

Fri, Dec 15
IAD
ORD
9h 53m
Sun, Dec 17
ORD
IAD
4h 40m
Trip: 3 days
7.1GoodShow reviews
Overall 7.1 Good
Based on 64 reviews
Overall
7.2
Boarding
7.3
Comfort
6.9
Crew
7.7
Entertainment
6.5
Food
6.4
IAD
ORD
Excellent 10.0

Great fly very attenty personal

IAD
ORD
Good 7.0

Everything was fine but not having the option of personal device entertainment was annoying, really annoying, I don't appreciate that kind of cheapness annoying.

No personal device entertainment and I'm 5'2 and my legs felt cramped, I felt sorry for the two guys sitting next to me

IAD
ORD
Good 7.3

Everything for this flight was as expected for my ticket purchase.

I had no problems with this flight.

IAD
ORD
Good 6.6

Nice crew and entertainment

3 hrs delay

IAD
ORD
Mediocre 2.6

We have to pay for entertainment The flight wasn't smooth honestly one of the worst ever Even counting the combat flights that I took to Iraq seriously I almost vomited and that never ever happened to me on a flight

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.