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Cheap flights from Washington, D.C. Dulles Intl Airport to Northern Ireland from £182

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington, D.C. Dulles Intl Airport to Northern Ireland departing on 15/4. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Washington, D.C. Dulles Intl Airport to Northern Ireland

Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
20:30 - 23:20
IAD
-
BFS
21h 50m
3 stops
Multiple Airlines Logo
23:30 - 15:10
BFS
-
IAD
44h 40m
3 stops
£479Multiple Airlines
Tue, 14 Apr - Tue, 21 Apr
American Airlines Logo
16:46 - 10:20
IAD
-
BHD
13h 34m
2 stops
American Airlines Logo
06:35 - 20:55
BHD
-
IAD
18h 20m
1 stop
£482American Airlines
Thu, 19 Mar - Thu, 26 Mar
Multiple Airlines Logo
20:30 - 20:35
IAD
-
BFS
19h 05m
2 stops
Multiple Airlines Logo
06:10 - 19:20
BFS
-
IAD
42h 10m
2 stops
£490Multiple Airlines
Thu, 16 Apr - Thu, 23 Apr
Multiple Airlines Logo
20:30 - 20:55
IAD
-
BFS
19h 25m
2 stops
Multiple Airlines Logo
06:15 - 19:20
BFS
-
IAD
42h 05m
2 stops
£492Multiple Airlines
Tue, 14 Apr - Tue, 21 Apr
Multiple Airlines Logo
19:05 - 16:40
IAD
-
BHD
17h 35m
1 stop
Multiple Airlines Logo
06:30 - 17:05
BHD
-
IAD
14h 35m
1 stop
£496Multiple Airlines
Thu, 19 Mar - Thu, 26 Mar
British Airways Logo
22:25 - 15:30
IAD
-
BHD
12h 05m
1 stop
British Airways Logo
19:35 - 17:25
BHD
-
IAD
26h 50m
1 stop
£503British Airways
Mon, 13 Apr - Mon, 27 Apr
British Airways Logo
17:40 - 20:35
IAD
-
BHD
21h 55m
1 stop
British Airways Logo
09:40 - 17:25
BHD
-
IAD
12h 45m
1 stop
£515British Airways
Fri, 24 Apr - Tue, 28 Apr
Delta Logo
18:10 - 09:20
IAD
-
BHD
10h 10m
1 stop
Delta Logo
17:30 - 15:35
BHD
-
IAD
27h 05m
1 stop
£522Delta
Mon, 30 Mar - Wed, 8 Apr
KLM Logo
18:10 - 09:20
IAD
-
BHD
10h 10m
1 stop
KLM Logo
09:50 - 00:42
BHD
-
IAD
19h 52m
2 stops
£529KLM
Mon, 13 Apr - Mon, 27 Apr
British Airways Logo
19:15 - 19:25
IAD
-
BHD
19h 10m
1 stop
British Airways Logo
20:25 - 17:25
BHD
-
IAD
26h 00m
1 stop
£554British Airways
Thu, 2 Apr - Tue, 7 Apr

American Airlines flights from Washington, D.C. Dulles Intl Airport to Northern Ireland

Our best American Airlines deals on Washington, D.C. Dulles Intl Airport to Northern Ireland flight tickets
American Airlines
19 Mar
IAD16:46Washington, D.C. Dulles Intl
13h 34m
2 stops
BHD10:20Belfast City
26 Mar
BHD06:35Belfast City
18h 20m
1 stop
IAD20:55Washington, D.C. Dulles Intl
£482
American Airlines
29 Mar
IAD22:15Washington, D.C. Dulles Intl
14h 25m
1 stop
BHD17:40Belfast City
8 Apr
BHD06:30Belfast City
17h 55m
2 stops
IAD19:25Washington, D.C. Dulles Intl
£658

British Airways flights from Washington, D.C. Dulles Intl Airport to Northern Ireland

Our best British Airways deals on Washington, D.C. Dulles Intl Airport to Northern Ireland flight tickets
British Airways
13 Apr
IAD22:25Washington, D.C. Dulles Intl
12h 05m
1 stop
BHD15:30Belfast City
27 Apr
BHD19:35Belfast City
26h 50m
1 stop
IAD17:25Washington, D.C. Dulles Intl
£503
British Airways
24 Apr
IAD17:40Washington, D.C. Dulles Intl
21h 55m
1 stop
BHD20:35Belfast City
28 Apr
BHD09:40Belfast City
12h 45m
1 stop
IAD17:25Washington, D.C. Dulles Intl
£515
British Airways
2 Apr
IAD19:15Washington, D.C. Dulles Intl
19h 10m
1 stop
BHD19:25Belfast City
7 Apr
BHD20:25Belfast City
26h 00m
1 stop
IAD17:25Washington, D.C. Dulles Intl
£554

momondo Fare Finder

 
Customise your flight search to find flights from Washington, D.C. Dulles Intl Airport to Northern Ireland that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 279,928 searches. Data last updated 2 March 2026.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Northern Ireland that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Belfast

IAD - BFS

IADBFS

Washington, D.C. Dulles Intl

Tue 14/4

20:30-23:20

3 stops21h 50m

Belfast Intl

Tue 21/4

23:30-15:10

3 stops44h 40m

£479

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Thu 19/3

16:46-10:20

2 stops13h 34m

Belfast City

Thu 26/3

06:35-20:55

1 stop18h 20m

£482

Washington, D.C.Belfast

IAD - BFS

IADBFS

Washington, D.C. Dulles Intl

Thu 16/4

20:30-20:35

2 stops19h 05m

Belfast Intl

Thu 23/4

06:10-19:20

2 stops42h 10m

£490

Washington, D.C.Belfast

IAD - BFS

IADBFS

Washington, D.C. Dulles Intl

Tue 14/4

20:30-20:55

2 stops19h 25m

Belfast Intl

Tue 21/4

06:15-19:20

2 stops42h 05m

£492

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Thu 19/3

19:05-16:40

1 stop17h 35m

Belfast City

Thu 26/3

06:30-17:05

1 stop14h 35m

£496

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Mon 13/4

22:25-15:30

1 stop12h 05m

Belfast City

Mon 27/4

19:35-17:25

1 stop26h 50m

£503

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Fri 24/4

17:40-20:35

1 stop21h 55m

Belfast City

Tue 28/4

09:40-17:25

1 stop12h 45m

£515

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Mon 30/3

18:10-09:20

1 stop10h 10m

Belfast City

Wed 8/4

17:30-15:35

1 stop27h 05m

£522

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Mon 13/4

18:10-09:20

1 stop10h 10m

Belfast City

Mon 27/4

09:50-00:42

2 stops19h 52m

£529

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Thu 2/4

19:15-19:25

1 stop19h 10m

Belfast City

Tue 7/4

20:25-17:25

1 stop26h 00m

£554

Flights are sorted by cheapest return flights first.

Showing 1-10 of 17 resultsSorted by cheapest first
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See travel insights to Northern Ireland from

How to get the cheapest flight ticket from Washington, D.C. Dulles Intl Airport to Northern Ireland

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from Washington, D.C. Dulles Intl to Northern Ireland?

British Airways is the most popular carrier operating from Washington, D.C. Dulles Intl to Northern Ireland

Cheap Washington, D.C. Dulles Intl Airport to Northern Ireland flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. Dulles Intl Airport to Northern Ireland

Fastest flight time

10h 30m

Direct flights

None
The fastest flight from Washington, D.C. Dulles Intl Airport to Northern Ireland takes 10h 30m
There are no direct flights from Washington, D.C. Dulles Intl Airport to Northern Ireland. There are no popular flight routes from Washington, D.C. Dulles Intl Airport to Northern Ireland.
Search flight deals

  • When did momondo last update prices for flights from Washington, D.C. Dulles Intl Airport to Northern Ireland?

    Prices for flights from Washington, D.C. Dulles Intl Airport to Northern Ireland are updated daily.

  • How old do you have to be to fly from Washington, D.C. Dulles Intl Airport to Northern Ireland?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Washington, D.C. Dulles Intl Airport to Northern Ireland.

  • What documentation or ID do you need to fly to Northern Ireland?

    The travel and health documents you'll need for your trip to Northern Ireland may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Northern Ireland. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Why use momondo?

Why should I use momondo to find a flight deal from Washington, D.C. to Northern Ireland?

Finding the right flight to Northern Ireland from Washington, D.C. is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Northern Ireland quick and easy, saving you time and money.

Can I find flights from Washington, D.C. to Northern Ireland with flexible booking policies on momondo?

momondo does allow users to show only those flights to Northern Ireland from Washington, D.C. which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Washington, D.C. to Northern Ireland?

momondo helps you find the best flight between Washington, D.C. and Northern Ireland by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Washington, D.C. to Northern Ireland right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Northern Ireland, momondo offers a useful price alert feature which will track prices for flights to Northern Ireland from Washington, D.C. and alert you when they change.

An easier way to manage your Northern Ireland trip

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