Find Deals on Flights from Chicago to Washington Dulles Intl (CHI - IAD)

Depart
Return
1 adult
Adults
18-64
Seniors
65+
Youths
12-17
Children
2-11
Seat Infants
under 2
Lap Infants
under 2
The price shown for each flight will be the average for all passengers including any infants.
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Book cheap flights from Chicago to Washington Dulles Intl

(Round-trip)
Depart: Fri Nov 4 2016 Return: Sat Nov 5 2016 Trip spans 2 days
Depart: Thu Oct 27 2016 Return: Tue Nov 1 2016 Trip spans 6 days
Depart: Thu Sep 15 2016 Return: Mon Sep 19 2016 Trip spans 5 days
Depart: Sun Oct 9 2016 Return: Wed Oct 12 2016 Trip spans 4 days
Depart: Wed Nov 30 2016 Return: Tue Dec 13 2016 Trip spans 14 days
Depart: Sat Sep 17 2016 Return: Thu Sep 22 2016 Trip spans 6 days
Depart: Thu Dec 1 2016 Return: Wed Dec 7 2016 Trip spans 7 days
Depart: Sat Sep 17 2016 Return: Wed Sep 21 2016 Trip spans 5 days
Depart: Wed Aug 31 2016 Return: Thu Sep 1 2016 Trip spans 2 days
Depart: Wed Dec 28 2016 Return: Tue Jan 3 2017 Trip spans 7 days
Depart: Tue Sep 20 2016 Return: Thu Sep 22 2016 Trip spans 3 days
Depart: Tue Sep 13 2016 Return: Wed Sep 28 2016 Trip spans 16 days
Depart: Wed Jan 18 2017 Return: Sat Jan 21 2017 Trip spans 4 days
Depart: Sat Oct 1 2016 Return: Sat Oct 8 2016 Trip spans 8 days
Depart: Thu Sep 22 2016 Return: Tue Sep 27 2016 Trip spans 6 days
Depart: Thu Feb 2 2017 Return: Thu Feb 9 2017 Trip spans 8 days
Depart: Wed Oct 5 2016 Return: Sat Oct 8 2016 Trip spans 4 days
Depart: Sat Oct 22 2016 Return: Wed Oct 26 2016 Trip spans 5 days
Depart: Thu Feb 23 2017 Return: Tue Feb 28 2017 Trip spans 6 days
Depart: Wed Nov 2 2016 Return: Sat Nov 5 2016 Trip spans 4 days
Direct flights CHI to IAD on United
Flight # Depart ORD Arrive IAD Sun Mon Tue Wed Thu Fri Sat Valid Between
4529 7:30 am 10:23 am Sep 1 - Sep 6
4627 7:30 am 10:23 am Sep 7 - Oct 4
632 8:24 am 11:16 am Aug 27 - Sep 3
632 8:35 am 11:27 am Oct 2 - Oct 2
632 8:55 am 11:46 am Sep 6 - Sep 6
632 8:55 am 11:47 am Sep 7 - Oct 5
632 8:55 am 11:47 am Sep 9 - Sep 13
632 8:55 am 11:47 am Sep 11 - Sep 18
632 8:55 am 11:47 am Sep 16 - Sep 16
632 8:55 am 11:46 am Sep 17 - Sep 17
632 8:55 am 11:47 am Sep 19 - Oct 4
632 8:55 am 11:47 am Sep 24 - Oct 1
632 8:55 am 11:47 am Sep 25 - Sep 25
632 8:55 am 11:47 am Sep 10 - Sep 10
632 8:55 am 11:46 am Aug 23 - Sep 2
632 8:55 am 11:46 am Sep 5 - Sep 5
632 8:55 am 11:47 am Sep 4 - Sep 4
795 10:30 am 1:22 pm Oct 2 - Oct 2
795 10:30 am 1:22 pm Sep 11 - Sep 25
795 10:50 am 1:42 pm Sep 6 - Sep 6
795 10:50 am 1:42 pm Aug 23 - Sep 2
795 10:50 am 1:42 pm Sep 4 - Sep 5
795 10:55 am 1:47 pm Sep 7 - Oct 4
912 1:00 pm 4:02 pm Sep 7 - Sep 7
912 1:00 pm 4:03 pm Sep 19 - Sep 30
912 1:00 pm 4:02 pm Sep 18 - Sep 18
912 1:00 pm 4:03 pm Sep 10 - Oct 1
912 1:00 pm 4:03 pm Oct 3 - Oct 3
912 1:00 pm 4:03 pm Sep 8 - Sep 16
498 1:05 pm 4:08 pm Aug 23 - Sep 6
498 1:05 pm 4:08 pm Sep 4 - Sep 4
498 1:05 pm 4:08 pm Sep 2 - Sep 5
1566 1:09 pm 4:12 pm Aug 27 - Sep 3
912 1:14 pm 4:17 pm Oct 2 - Oct 2
4700 3:50 pm 6:54 pm Sep 10 - Oct 1
225 5:55 pm 8:54 pm Sep 5 - Sep 5
225 5:55 pm 8:54 pm Aug 27 - Sep 3
225 5:55 pm 8:54 pm Sep 6 - Sep 6
225 5:55 pm 8:53 pm Sep 4 - Sep 4
225 5:55 pm 8:54 pm Sep 2 - Sep 2
225 6:05 pm 9:07 pm Sep 24 - Oct 1
225 6:05 pm 9:07 pm Sep 7 - Sep 8
225 6:05 pm 9:07 pm Sep 27 - Oct 4
225 6:05 pm 9:07 pm Sep 13 - Sep 13
225 6:05 pm 9:07 pm Sep 14 - Sep 21
225 6:05 pm 9:07 pm Sep 10 - Sep 17
225 6:05 pm 9:07 pm Sep 12 - Oct 3
225 6:05 pm 9:07 pm Sep 15 - Sep 15
225 6:05 pm 9:07 pm Sep 22 - Sep 30
225 6:05 pm 9:07 pm Sep 20 - Sep 20
225 6:09 pm 9:11 pm Sep 9 - Sep 9
225 6:14 pm 9:16 pm Sep 16 - Sep 16
225 6:18 pm 9:19 pm Sep 25 - Sep 25
225 6:18 pm 9:20 pm Sep 11 - Sep 18
225 6:18 pm 9:20 pm Oct 2 - Oct 2
2000 8:50 pm 11:40 pm Sep 5 - Sep 5
2000 8:50 pm 11:40 pm Sep 3 - Sep 3
2000 8:50 pm 11:40 pm Sep 2 - Sep 6
2000 8:55 pm 11:45 pm Sep 7 - Sep 15
2000 8:55 pm 11:45 pm Oct 1 - Oct 4
2000 8:55 pm 11:44 pm Sep 29 - Sep 29
2000 8:55 pm 11:45 pm Sep 17 - Sep 28
2000 8:55 pm 11:45 pm Sep 16 - Sep 30
2000 8:55 pm 11:45 pm Sep 10 - Sep 10
2000 8:55 pm 11:44 pm Sep 9 - Sep 9
* Prices are per person and are for e–tickets and include all taxes & fees in USD.

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

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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,
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Airports
Origin

Chicago
only $145
only $224
Destination

Washington
$145