Find Deals on Flights from Washington Dulles Intl to Belfast

Depart
Return
1 adult
Adults
18-64
Seniors
65+
Youths
12-17
Children
2-11
Seat Infants
under 2
Lap Infants
under 2
Students
under 26
The price shown for each flight will be the average for all passengers including any infants.
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Dates flexible? Here are the best fares found in the past 48 hours...

Book cheap flights from Washington Dulles Intl to Belfast

(Round-trip)
Depart: Mon Dec 26 2016 Return: Thu Jan 5 2017 Trip spans 11 days
United
United
IAD
5:00p
BFS
11:30p
30h 30m
1 stop
BFS
6:10a
IAD
9:00p
14h 50m
1 stop
Depart: Mon Jan 9 2017 Return: Sat Jan 14 2017 Trip spans 6 days
American Airlines
American Airlines
IAD
5:30p
BHD
4:20a
10h 50m
1 stop
BHD
10:05a
IAD
2:20p
28h 15m
1 stop
Depart: Wed May 24 2017 Return: Mon May 29 2017 Trip spans 6 days
Brussels Airlines
Brussels Airlines
IAD
1:40p
BHD
7:05a
17h 25m
1 stop
BHD
12:45p
IAD
1:55p
25h 10m
1 stop
Depart: Tue Dec 27 2016 Return: Sun Jan 1 2017 Trip spans 6 days
Major Airline
Major Airline
IAD
8:55a
BFS
6:30p
9h 35m
2 stops
BFS
1:10a
IAD
4:15p
15h 05m
2 stops
Depart: Thu Jan 19 2017 Return: Mon Jan 23 2017 Trip spans 5 days
United
United
IAD
1:40p
BHD
1:10a
11h 30m
1 stop
BHD
8:05a
IAD
3:50p
31h 45m
1 stop
Depart: Wed Dec 28 2016 Return: Sun Jan 1 2017 Trip spans 5 days
$1149
Select
United
United
IAD
12:25p
BFS
11:30p
11h 05m
1 stop
BFS
6:10a
IAD
4:25p
10h 15m
1 stop
Depart: Mon Jan 2 2017 Return: Sun Jan 8 2017 Trip spans 7 days
$1353
Select
United
United
IAD
1:55p
BFS
11:30p
9h 35m
1 stop
BFS
6:10a
IAD
7:24a
25h 14m
1 stop
* 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.

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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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^ The fares displayed in KAYAK ads found on other sites include all taxes and fees for economy class travel and were found by KAYAK users 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.
Airports
Origin

Washington
$638
Destination

Belfast
only $774
only $638