Cheap flights from Washington, D.C. to Northern Ireland from £202

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 15/9. 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

 Logo
18:50 - 13:30BWI-BFS
13h 40m2 stops
 Logo
06:05 - 17:40BFS-BWI
16h 35m2 stops
Fri, 19 Sep - Fri, 26 Sep
 Logo
18:50 - 23:05BWI-BFS
23h 15m2 stops
 Logo
21:30 - 17:40BFS-BWI
25h 10m2 stops
Sat, 4 Oct - Sat, 11 Oct
British Airways Logo
19:20 - 11:10IAD-BHD
11h 50m1 stop
British Airways Logo
06:30 - 15:35BHD-IAD
14h 05m1 stop
£465British Airways
Find Deal
Sat, 1 Nov - Sun, 9 Nov
British Airways Logo
18:20 - 09:10IAD-BHD
9h 50m1 stop
British Airways Logo
09:10 - 19:55BHD-IAD
15h 45m1 stop
£469British Airways
Find Deal
Wed, 12 Nov - Sun, 16 Nov
American Airlines Logo
22:40 - 20:45IAD-BHD
17h 05m1 stop
American Airlines Logo
06:35 - 20:10BHD-IAD
18h 35m1 stop
£474American Airlines
Find Deal
Fri, 19 Sep - Fri, 26 Sep
American Airlines Logo
19:20 - 09:10IAD-BHD
9h 50m1 stop
American Airlines Logo
06:30 - 19:21BHD-IAD
17h 51m2 stops
£565American Airlines
Find Deal
Sat, 1 Nov - Sun, 9 Nov
KLM Logo
19:22 - 16:55IAD-BHD
16h 33m2 stops
KLM Logo
06:30 - 15:35BHD-IAD
14h 05m1 stop
£570KLM
Find Deal
Mon, 15 Sep - Thu, 25 Sep
KLM Logo
19:22 - 16:55IAD-BHD
16h 33m2 stops
KLM Logo
06:30 - 18:24BHD-IAD
16h 54m2 stops
£577KLM
Find Deal
Mon, 15 Sep - Thu, 25 Sep
Delta Logo
20:17 - 16:55IAD-BHD
15h 38m2 stops
Delta Logo
06:30 - 19:37BHD-IAD
18h 07m2 stops
£617Delta
Find Deal
Fri, 26 Sep - Mon, 29 Sep
Delta Logo
20:17 - 16:55IAD-BHD
15h 38m2 stops
Delta Logo
06:30 - 19:37BHD-IAD
18h 07m2 stops
£617Delta
Find Deal
Fri, 26 Sep - Mon, 29 Sep

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
1 Nov
IAD19:20Washington, D.C. Dulles Intl
11h 50m
1 stop
BHD11:10Belfast City
9 Nov
BHD06:30Belfast City
14h 05m
1 stop
IAD15:35Washington, D.C. Dulles Intl
British Airways
12 Nov
IAD18:20Washington, D.C. Dulles Intl
9h 50m
1 stop
BHD09:10Belfast City
16 Nov
BHD09:10Belfast City
15h 45m
1 stop
IAD19:55Washington, D.C. Dulles Intl
British Airways
14 Sept
IAD17:50Washington, D.C. Dulles Intl
10h 15m
1 stop
BHD09:05Belfast City
21 Sept
BHD20:05Belfast City
27h 46m
2 stops
IAD18:51Washington, D.C. Dulles Intl

Delta flights from Washington, D.C. to Northern Ireland

Our best Delta deals on Washington, D.C. to Northern Ireland flight tickets
Delta
26 Sept
IAD20:17Washington, D.C. Dulles Intl
15h 38m
2 stops
BHD16:55Belfast City
29 Sept
BHD06:30Belfast City
18h 07m
2 stops
IAD19:37Washington, D.C. Dulles Intl
Delta
26 Sept
IAD20:17Washington, D.C. Dulles Intl
15h 38m
2 stops
BHD16:55Belfast City
29 Sept
BHD06:30Belfast City
18h 07m
2 stops
IAD19:37Washington, D.C. Dulles Intl
Delta
6 Sept
IAD14:15Washington, D.C. Dulles Intl
21h 40m
2 stops
BHD16:55Belfast City
20 Dec
BHD06:30Belfast City
14h 35m
1 stop
IAD16:05Washington, D.C. Dulles Intl

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 21 August 2025.
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

BaltimoreBelfast

BWI - BFS

BWIBFS

Baltimore/Washington

Fri 19/9

18:50-13:30

2 stops13h 40m

Belfast Intl

Fri 26/9

06:05-17:40

2 stops16h 35m

£436

BaltimoreBelfast

BWI - BFS

BWIBFS

Baltimore/Washington

Sat 4/10

18:50-23:05

2 stops23h 15m

Belfast Intl

Sat 11/10

21:30-17:40

2 stops25h 10m

£446

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Sat 1/11

19:20-11:10

1 stop11h 50m

Belfast City

Sun 9/11

06:30-15:35

1 stop14h 05m

£465

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Wed 12/11

18:20-09:10

1 stop9h 50m

Belfast City

Sun 16/11

09:10-19:55

1 stop15h 45m

£469

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Fri 19/9

22:40-20:45

1 stop17h 05m

Belfast City

Fri 26/9

06:35-20:10

1 stop18h 35m

£474

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Sat 1/11

19:20-09:10

1 stop9h 50m

Belfast City

Sun 9/11

06:30-19:21

2 stops17h 51m

£565

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Mon 15/9

19:22-16:55

2 stops16h 33m

Belfast City

Thu 25/9

06:30-15:35

1 stop14h 05m

£570

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Mon 15/9

19:22-16:55

2 stops16h 33m

Belfast City

Thu 25/9

06:30-18:24

2 stops16h 54m

£577

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Fri 26/9

20:17-16:55

2 stops15h 38m

Belfast City

Mon 29/9

06:30-19:37

2 stops18h 07m

£617

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Fri 26/9

20:17-16:55

2 stops15h 38m

Belfast City

Mon 29/9

06:30-19:37

2 stops18h 07m

£617

Flights are sorted by cheapest return flights first.

Showing 1-10 of 14 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 month to fly to Northern Ireland?

In general, February is the cheapest month to fly from Washington, D.C. to Northern Ireland. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £459. If you’re not able to fly to Northern Ireland in February, then August is your next best option. Flight prices from Washington, D.C. to Northern Ireland during August average around £459.

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

Direct flights

None
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.
  • 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
Tue 26/8
Tue 2/9

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Popular Cities in Northern Ireland

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