Cheap flights from Washington, D.C. to Northern Ireland from £476

This is the cheapest return 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 22/2. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
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.
American Airlines Logo
18:04 - 13:55
BWI
-
BHD
14h 51m
2 stops
American Airlines Logo
14:40 - 19:45
BHD
-
BWI
33h 05m
1 stop
£476American Airlines
Sun, 22 Feb - Mon, 9 Mar
British Airways Logo
18:20 - 09:10
IAD
-
BHD
9h 50m
1 stop
British Airways Logo
10:40 - 20:55
BHD
-
IAD
14h 15m
1 stop
£479British Airways
Wed, 4 Mar - Sun, 8 Mar
British Airways Logo
18:20 - 09:10
IAD
-
BHD
9h 50m
1 stop
British Airways Logo
06:30 - 15:35
BHD
-
IAD
14h 05m
1 stop
£479British Airways
Wed, 4 Mar - Sun, 8 Mar
British Airways Logo
18:20 - 10:15
IAD
-
BHD
10h 55m
1 stop
British Airways Logo
20:25 - 20:55
BHD
-
IAD
28h 30m
1 stop
£480British Airways
Wed, 4 Mar - Sun, 8 Mar
KLM Logo
18:05 - 16:50
IAD
-
BHD
17h 45m
1 stop
KLM Logo
06:30 - 17:05
BHD
-
IAD
14h 35m
1 stop
£481KLM
Sun, 22 Feb - Mon, 9 Mar
British Airways Logo
21:45 - 08:25
IAD
-
BHD
29h 40m
1 stop
British Airways Logo
06:35 - 20:55
BHD
-
IAD
18h 20m
1 stop
£484British Airways
Thu, 5 Mar - Thu, 12 Mar
Delta Logo
06:00 - 21:00
BWI
-
BHD
34h 00m
2 stops
Delta Logo
17:20 - 23:01
BHD
-
BWI
33h 41m
2 stops
£498Delta
Sun, 22 Feb - Mon, 9 Mar
Multiple Airlines Logo
18:05 - 16:50
IAD
-
BHD
17h 45m
1 stop
Multiple Airlines Logo
06:30 - 20:46
BHD
-
IAD
18h 16m
2 stops
£501Multiple Airlines
Thu, 5 Mar - Thu, 12 Mar
Multiple Airlines Logo
18:05 - 16:50
IAD
-
BHD
17h 45m
1 stop
Multiple Airlines Logo
06:30 - 22:59
BHD
-
IAD
20h 29m
2 stops
£502Multiple Airlines
Thu, 5 Mar - Thu, 12 Mar
Delta Logo
12:24 - 16:50
IAD
-
BHD
23h 26m
2 stops
Delta Logo
06:30 - 19:19
BHD
-
IAD
16h 49m
2 stops
£553Delta
Thu, 5 Mar - Thu, 12 Mar

Aer Lingus flights from Washington, D.C. to Northern Ireland

Our best Aer Lingus deals on Washington, D.C. to Northern Ireland flight tickets
Aer Lingus
2 Apr
IAD17:15Washington, D.C. Dulles Intl
16h 40m
2 stops
BHD14:55Belfast City
7 Apr
BHD10:55Belfast City
33h 50m
2 stops
IAD15:45Washington, D.C. Dulles Intl
£639
Aer Lingus
2 Apr
IAD17:15Washington, D.C. Dulles Intl
16h 40m
2 stops
BHD14:55Belfast City
7 Apr
BHD10:55Belfast City
33h 50m
2 stops
IAD15:45Washington, D.C. Dulles Intl
£648
Aer Lingus
5 May
IAD17:15Washington, D.C. Dulles Intl
13h 40m
2 stops
BHD11:55Belfast City
8 May
BHD09:50Belfast City
14h 20m
2 stops
IAD19:10Washington, D.C. Dulles Intl
£728

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
4 Mar
IAD18:20Washington, D.C. Dulles Intl
9h 50m
1 stop
BHD09:10Belfast City
8 Mar
BHD10:40Belfast City
14h 15m
1 stop
IAD20:55Washington, D.C. Dulles Intl
£478
British Airways
4 Mar
IAD18:20Washington, D.C. Dulles Intl
9h 50m
1 stop
BHD09:10Belfast City
8 Mar
BHD06:30Belfast City
14h 05m
1 stop
IAD15:35Washington, D.C. Dulles Intl
£479
British Airways
4 Mar
IAD18:20Washington, D.C. Dulles Intl
10h 55m
1 stop
BHD10:15Belfast City
8 Mar
BHD20:25Belfast City
28h 30m
1 stop
IAD20:55Washington, D.C. Dulles Intl
£480

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 6 February 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

BaltimoreBelfast

BWI - BHD

BWIBHD

Baltimore/Washington

Sun 22/2

18:04-13:55

2 stops14h 51m

Belfast City

Mon 9/3

14:40-19:45

1 stop33h 05m

£476

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Wed 4/3

18:20-09:10

1 stop9h 50m

Belfast City

Sun 8/3

10:40-20:55

1 stop14h 15m

£478

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Wed 4/3

18:20-09:10

1 stop9h 50m

Belfast City

Sun 8/3

06:30-15:35

1 stop14h 05m

£479

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Wed 4/3

18:20-10:15

1 stop10h 55m

Belfast City

Sun 8/3

20:25-20:55

1 stop28h 30m

£480

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Sun 22/2

18:05-16:50

1 stop17h 45m

Belfast City

Mon 9/3

06:30-17:05

1 stop14h 35m

£481

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Thu 5/3

21:45-08:25

1 stop29h 40m

Belfast City

Thu 12/3

06:35-20:55

1 stop18h 20m

£484

BaltimoreBelfast

BWI - BHD

BWIBHD

Baltimore/Washington

Sun 22/2

06:00-21:00

2 stops34h 00m

Belfast City

Mon 9/3

17:20-23:01

2 stops33h 41m

£498

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Thu 5/3

18:05-16:50

1 stop17h 45m

Belfast City

Thu 12/3

06:30-20:46

2 stops18h 16m

£501

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Thu 5/3

18:05-16:50

1 stop17h 45m

Belfast City

Thu 12/3

06:30-22:59

2 stops20h 29m

£502

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Thu 5/3

12:24-16:50

2 stops23h 26m

Belfast City

Thu 12/3

06:30-19:19

2 stops16h 49m

£553

Flights are sorted by cheapest return flights first.

Showing 1-10 of 13 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?

British Airways is the most popular carrier 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

9h 50m

Direct flights

None
The fastest flight from Washington, D.C. to Northern Ireland takes 9h 50m
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
Sun 8/3
Sun 15/3

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