Cheap flights from Washington, D.C. to Northern Ireland from £262

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. to Northern Ireland departing on 4/8. 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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0 bags
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Find the cheapest flights from Washington, D.C. to Northern Ireland

Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
12:45 - 14:55
DCA
-
BHD
21h 10m
3 stops
Multiple Airlines Logo
07:00 - 18:13
BHD
-
DCA
40h 13m
3 stops
£684Multiple Airlines
Sun, 7 Jun - Thu, 11 Jun
Multiple Airlines Logo
20:30 - 21:30
IAD
-
BFS
20h 00m
2 stops
Multiple Airlines Logo
06:20 - 15:45
BFS
-
IAD
38h 25m
3 stops
£692Multiple Airlines
Sun, 19 Jul - Thu, 23 Jul
British Airways Logo
22:25 - 15:30
IAD
-
BHD
12h 05m
1 stop
British Airways Logo
09:35 - 17:25
BHD
-
IAD
12h 50m
1 stop
£718British Airways
Mon, 7 Sep - Fri, 11 Sep
British Airways Logo
21:35 - 14:35
BWI
-
BHD
12h 00m
1 stop
British Airways Logo
16:35 - 19:40
BHD
-
BWI
32h 05m
1 stop
£718British Airways
Sun, 27 Sep - Thu, 1 Oct
Multiple Airlines Logo
20:30 - 21:30
IAD
-
BFS
20h 00m
2 stops
Multiple Airlines Logo
06:40 - 20:24
BFS
-
IAD
18h 44m
2 stops
£718Multiple Airlines
Sun, 19 Jul - Thu, 23 Jul
Multiple Airlines Logo
06:59 - 18:55
DCA
-
BFS
30h 56m
3 stops
Multiple Airlines Logo
21:10 - 18:13
BFS
-
DCA
26h 03m
2 stops
£718Multiple Airlines
Sat, 6 Jun - Fri, 12 Jun
British Airways Logo
19:15 - 12:55
IAD
-
BHD
12h 40m
1 stop
British Airways Logo
09:35 - 17:25
BHD
-
IAD
12h 50m
1 stop
£719British Airways
Mon, 7 Sep - Fri, 11 Sep
British Airways Logo
21:35 - 14:35
BWI
-
BHD
12h 00m
1 stop
British Airways Logo
09:35 - 19:40
BHD
-
BWI
15h 05m
1 stop
£719British Airways
Sun, 27 Sep - Thu, 1 Oct
KLM Logo
13:29 - 09:20
BWI
-
BHD
14h 51m
2 stops
KLM Logo
17:30 - 17:19
BHD
-
BWI
28h 49m
2 stops
£895KLM
Mon, 8 Jun - Mon, 15 Jun
American Airlines Logo
17:00 - 10:45
DCA
-
BHD
12h 45m
2 stops
American Airlines Logo
06:30 - 19:14
BHD
-
DCA
17h 44m
2 stops
£975American Airlines
Tue, 2 Jun - Mon, 8 Jun

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

Our best British Airways deals on Washington, D.C. to Northern Ireland flight tickets
British Airways
7 Sept
IAD22:25Washington, D.C. Dulles Intl
12h 05m
1 stop
BHD15:30Belfast City
11 Sept
BHD09:35Belfast City
12h 50m
1 stop
IAD17:25Washington, D.C. Dulles Intl
£718
British Airways
7 Sept
IAD19:15Washington, D.C. Dulles Intl
12h 40m
1 stop
BHD12:55Belfast City
11 Sept
BHD09:35Belfast City
12h 50m
1 stop
IAD17:25Washington, D.C. Dulles Intl
£719
British Airways
11 May
BWI21:30Baltimore/Washington
13h 00m
1 stop
BHD15:30Belfast City
25 May
BHD18:30Belfast City
30h 10m
1 stop
BWI19:40Baltimore/Washington
£805

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

Our best American Airlines deals on Washington, D.C. to Northern Ireland flight tickets
American Airlines
13 May
DCA17:54Washington, D.C. Reagan-National
13h 06m
2 stops
BHD12:00Belfast City
17 May
BHD13:10Belfast City
15h 51m
2 stops
DCA00:01Washington, D.C. Reagan-National
£856
American Airlines
13 May
IAD22:25Washington, D.C. Dulles Intl
12h 15m
1 stop
BHD15:40Belfast City
17 May
BHD06:30Belfast City
15h 55m
1 stop
IAD17:25Washington, D.C. Dulles Intl
£899
American Airlines
13 May
BWI21:30Baltimore/Washington
13h 10m
1 stop
BHD15:40Belfast City
17 May
BHD13:10Belfast City
15h 46m
2 stops
BWI23:56Baltimore/Washington
£910

momondo Fare Finder

 
Customise your flight search to find flights from Washington, D.C. 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 9 May 2026.
Use the filters below to find and compare flights from Washington, D.C. to Northern Ireland that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

Washington, D.C.Belfast

DCA - BHD

DCABHD

Washington, D.C. Reagan-National

Sun 7/6

12:45-14:55

3 stops21h 10m

Belfast City

Thu 11/6

07:00-18:13

3 stops40h 13m

£684

Washington, D.C.Belfast

IAD - BFS

IADBFS

Washington, D.C. Dulles Intl

Sun 19/7

20:30-21:30

2 stops20h 00m

Belfast Intl

Thu 23/7

06:20-15:45

3 stops38h 25m

£692
Fastest return journey

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Mon 7/9

22:25-15:30

1 stop12h 05m

Belfast City

Fri 11/9

09:35-17:25

1 stop12h 50m

£718

BaltimoreBelfast

BWI - BHD

BWIBHD

Baltimore/Washington

Sun 27/9

21:35-14:35

1 stop12h 00m

Belfast City

Thu 1/10

16:35-19:40

1 stop32h 05m

£718

Washington, D.C.Belfast

IAD - BFS

IADBFS

Washington, D.C. Dulles Intl

Sun 19/7

20:30-21:30

2 stops20h 00m

Belfast Intl

Thu 23/7

06:40-20:24

2 stops18h 44m

£718

Washington, D.C.Belfast

DCA - BFS

DCABFS

Washington, D.C. Reagan-National

Sat 6/6

06:59-18:55

3 stops30h 56m

Belfast Intl

Fri 12/6

21:10-18:13

2 stops26h 03m

£718

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Mon 7/9

19:15-12:55

1 stop12h 40m

Belfast City

Fri 11/9

09:35-17:25

1 stop12h 50m

£719

BaltimoreBelfast

BWI - BHD

BWIBHD

Baltimore/Washington

Sun 27/9

21:35-14:35

1 stop12h 00m

Belfast City

Thu 1/10

09:35-19:40

1 stop15h 05m

£719

BaltimoreBelfast

BWI - BHD

BWIBHD

Baltimore/Washington

Mon 8/6

13:29-09:20

2 stops14h 51m

Belfast City

Mon 15/6

17:30-17:19

2 stops28h 49m

£895

Washington, D.C.Belfast

DCA - BHD

DCABHD

Washington, D.C. Reagan-National

Tue 2/6

17:00-10:45

2 stops12h 45m

Belfast City

Mon 8/6

06:30-19:14

2 stops17h 44m

£975

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 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. 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. to Northern Ireland?

Delta, KLM, and British Airways are the most popular carriers operating from Washington, D.C. to Northern Ireland

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

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

Fastest flight time

10h 40m

Direct flights

None
The fastest flight from Washington, D.C. to Northern Ireland takes 10h 40m
There are no direct flights from Washington, D.C. to Northern Ireland. There are no popular flight routes from Washington, D.C. to Northern Ireland.

Frequently asked questions about flying from Washington, D.C. to Northern Ireland

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

    Prices for flights from Washington, D.C. to Northern Ireland were last updated today.

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

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Washington, D.C. to Northern Ireland.

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

    The required travel and health documents for your Northern Ireland trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Northern Ireland. We recommend that you seek guidance from your airline or a reliable 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?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Washington, D.C. to Northern Ireland for you.

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

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.

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1 adult
Mon 8/6
Mon 15/6

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Popular Cities in Northern Ireland

Popular flights according to clicks in the last 7 days on momondo