Cheap flights from Northern Ireland to Washington, D.C. from £344

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Northern Ireland to Washington, D.C. departing on 24/8. 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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Cheap return flights

Enter your travel dates to find the best prices.
American Airlines Logo
09:40 - 19:40
BHD
-
BWI
15h 00m
1 stop
American Airlines Logo
16:25 - 15:20
BWI
-
BHD
17h 55m
2 stops
£685American Airlines
Tue, 23 Jun - Tue, 11 Aug
American Airlines Logo
09:40 - 19:40
BHD
-
BWI
15h 00m
1 stop
American Airlines Logo
19:24 - 17:35
BWI
-
BHD
17h 11m
2 stops
£694American Airlines
Tue, 23 Jun - Tue, 11 Aug
British Airways Logo
10:05 - 17:41
BHD
-
BWI
36h 36m
2 stops
British Airways Logo
20:17 - 12:55
BWI
-
BHD
35h 38m
2 stops
£696British Airways
Wed, 7 Oct - Sun, 11 Oct
American Airlines Logo
06:30 - 19:40
BHD
-
BWI
18h 10m
1 stop
American Airlines Logo
11:59 - 10:45
BWI
-
BHD
17h 46m
2 stops
£705American Airlines
Tue, 23 Jun - Tue, 11 Aug
American Airlines Logo
06:30 - 19:28
BHD
-
BWI
17h 58m
2 stops
American Airlines Logo
11:59 - 10:45
BWI
-
BHD
17h 46m
2 stops
£709American Airlines
Tue, 23 Jun - Tue, 11 Aug
British Airways Logo
09:35 - 19:40
BHD
-
BWI
15h 05m
1 stop
British Airways Logo
15:54 - 19:25
BWI
-
BHD
22h 31m
2 stops
£722British Airways
Thu, 1 Oct - Mon, 5 Oct
Multiple Airlines Logo
15:35 - 17:00
BFS
-
IAD
30h 25m
2 stops
Multiple Airlines Logo
20:20 - 23:15
IAD
-
BFS
21h 55m
2 stops
£768Multiple Airlines
Thu, 11 Jun - Wed, 17 Jun
Multiple Airlines Logo
06:40 - 19:00
BFS
-
IAD
17h 20m
2 stops
Multiple Airlines Logo
17:15 - 18:55
IAD
-
BFS
20h 40m
2 stops
£781Multiple Airlines
Thu, 25 Jun - Thu, 2 Jul
Virgin Atlantic Logo
17:30 - 15:35
BHD
-
IAD
27h 05m
1 stop
Virgin Atlantic Logo
18:10 - 09:20
IAD
-
BHD
10h 10m
1 stop
£1,041Virgin Atlantic
Sun, 24 May - Mon, 7 Sep
Delta Logo
09:50 - 15:35
BHD
-
IAD
10h 45m
1 stop
Delta Logo
12:29 - 09:20
IAD
-
BHD
15h 51m
2 stops
£1,118Delta
Tue, 23 Jun - Tue, 11 Aug

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

Our best American Airlines deals on Northern Ireland to Washington, D.C. flight tickets
American Airlines
23 Jun
BHD09:40Belfast City
15h 00m
1 stop
BWI19:40Baltimore/Washington
11 Aug
BWI16:25Baltimore/Washington
17h 55m
2 stops
BHD15:20Belfast City
£685
American Airlines
23 Jun
BHD09:40Belfast City
15h 00m
1 stop
BWI19:40Baltimore/Washington
11 Aug
BWI19:24Baltimore/Washington
17h 11m
2 stops
BHD17:35Belfast City
£694
American Airlines
23 Jun
BHD06:30Belfast City
18h 10m
1 stop
BWI19:40Baltimore/Washington
11 Aug
BWI11:59Baltimore/Washington
17h 46m
2 stops
BHD10:45Belfast City
£705

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

Our best KLM deals on Northern Ireland to Washington, D.C. flight tickets
KLM
23 Jun
BHD09:50Belfast City
14h 45m
2 stops
IAD19:35Washington, D.C. Dulles Intl
11 Aug
IAD12:29Washington, D.C. Dulles Intl
15h 51m
2 stops
BHD09:20Belfast City
£1,253
KLM
23 Jun
BHD09:50Belfast City
14h 45m
2 stops
IAD19:35Washington, D.C. Dulles Intl
11 Aug
IAD12:29Washington, D.C. Dulles Intl
15h 51m
2 stops
BHD09:20Belfast City
£1,259
KLM
23 Jun
BHD09:50Belfast City
14h 45m
2 stops
IAD19:35Washington, D.C. Dulles Intl
11 Aug
IAD12:29Washington, D.C. Dulles Intl
15h 51m
2 stops
BHD09:20Belfast City
£1,263

momondo Fare Finder

 
Customise your flight search to find flights from Northern Ireland to Washington, D.C. 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 14 May 2026.
Use the filters below to find and compare flights from Northern Ireland to Washington, D.C. that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

BelfastBaltimore

BHD - BWI

BHDBWI

Belfast City

Tue 23/6

09:40-19:40

1 stop15h 00m

Baltimore/Washington

Tue 11/8

16:25-15:20

2 stops17h 55m

£685

BelfastBaltimore

BHD - BWI

BHDBWI

Belfast City

Tue 23/6

09:40-19:40

1 stop15h 00m

Baltimore/Washington

Tue 11/8

19:24-17:35

2 stops17h 11m

£694

BelfastBaltimore

BHD - BWI

BHDBWI

Belfast City

Wed 7/10

10:05-17:41

2 stops36h 36m

Baltimore/Washington

Sun 11/10

20:17-12:55

2 stops35h 38m

£696

BelfastBaltimore

BHD - BWI

BHDBWI

Belfast City

Tue 23/6

06:30-19:40

1 stop18h 10m

Baltimore/Washington

Tue 11/8

11:59-10:45

2 stops17h 46m

£705

BelfastBaltimore

BHD - BWI

BHDBWI

Belfast City

Tue 23/6

06:30-19:28

2 stops17h 58m

Baltimore/Washington

Tue 11/8

11:59-10:45

2 stops17h 46m

£709

BelfastBaltimore

BHD - BWI

BHDBWI

Belfast City

Thu 1/10

09:35-19:40

1 stop15h 05m

Baltimore/Washington

Mon 5/10

15:54-19:25

2 stops22h 31m

£722

BelfastWashington, D.C.

BFS - IAD

BFSIAD

Belfast Intl

Thu 11/6

15:35-17:00

2 stops30h 25m

Washington, D.C. Dulles Intl

Wed 17/6

20:20-23:15

2 stops21h 55m

£768

BelfastWashington, D.C.

BFS - IAD

BFSIAD

Belfast Intl

Thu 25/6

06:40-19:00

2 stops17h 20m

Washington, D.C. Dulles Intl

Thu 2/7

17:15-18:55

2 stops20h 40m

£781

BelfastWashington, D.C.

BHD - IAD

BHDIAD

Belfast City

Sun 24/5

17:30-15:35

1 stop27h 05m

Washington, D.C. Dulles Intl

Mon 7/9

18:10-09:20

1 stop10h 10m

£1,041
Fastest return journey

BelfastWashington, D.C.

BHD - IAD

BHDIAD

Belfast City

Tue 23/6

09:50-15:35

1 stop10h 45m

Washington, D.C. Dulles Intl

Tue 11/8

12:29-09:20

2 stops15h 51m

£1,118

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 Washington, D.C. from

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

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 Northern Ireland to Washington, D.C.?

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

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

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

Fastest flight time

14h 20m

Direct flights

None
The fastest flight from Northern Ireland to Washington, D.C. takes 14h 20m
There are no direct flights from Northern Ireland to Washington, D.C.. There are no popular flight routes from Northern Ireland to Washington, D.C..

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

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

    Prices for flights from Northern Ireland to Washington, D.C. are refreshed on a daily basis.

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

    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 Northern Ireland to Washington, D.C..

  • What documentation or ID do you need to fly to Washington, D.C.?

    The necessary travel and health documents for your Washington, D.C. trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Travelling to a place near Washington, D.C.?

Book flights to Washington, D.C. if you plan to visit one of these locations
Alexandria
College Park
Springfield
Fairfax
Arlington
Gettysburg
Linthicum Heights
Glen Burnie
Laurel
Ellicott City
Lutherville Timonium
Cambridge
Westminster
Lexington Park
Woodbridge
Bethesda
Owings Mills
Silver Spring
Rockville
Landover

Why use momondo?

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

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 Northern Ireland to Washington, D.C. for you.

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

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

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

momondo provides multiple filters to help you find the best flight to Washington, D.C. from Northern Ireland. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

If you are not ready to book a flight from Northern Ireland to Washington, D.C. now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Washington, D.C. and let you know when they change.

An easier way to manage your Washington, D.C. trip

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1 adult
Sat 13/6
Sat 20/6

Find better results for your trip to the United States

Fly into one of these airports located in Washington, D.C.

Airports listed have a maximum distance of 22.4 mi from Washington, D.C.