Cheap flights from Northern Ireland to Washington, D.C. from $465

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 8/24. 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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Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
9:40 am - 7:40 pm
BHD
-
BWI
15h 00m
1 stop
American Airlines Logo
7:24 pm - 5:35 pm
BWI
-
BHD
17h 11m
2 stops
$938American Airlines
Tue, Jun 23 - Tue, Aug 11
British Airways Logo
10:05 am - 5:41 pm
BHD
-
BWI
36h 36m
2 stops
British Airways Logo
8:17 pm - 12:55 pm
BWI
-
BHD
35h 38m
2 stops
$941British Airways
Wed, Oct 7 - Sun, Oct 11
British Airways Logo
11:35 am - 12:01 am
BHD
-
BWI
17h 26m
2 stops
British Airways Logo
8:17 pm - 12:55 pm
BWI
-
BHD
35h 38m
2 stops
$951British Airways
Wed, Oct 7 - Sun, Oct 11
American Airlines Logo
6:30 am - 7:40 pm
BHD
-
BWI
18h 10m
1 stop
American Airlines Logo
11:59 am - 10:45 am
BWI
-
BHD
17h 46m
2 stops
$953American Airlines
Tue, Jun 23 - Tue, Aug 11
American Airlines Logo
6:30 am - 7:28 pm
BHD
-
BWI
17h 58m
2 stops
American Airlines Logo
11:59 am - 10:45 am
BWI
-
BHD
17h 46m
2 stops
$959American Airlines
Tue, Jun 23 - Tue, Aug 11
American Airlines Logo
9:40 am - 7:40 pm
BHD
-
BWI
15h 00m
1 stop
American Airlines Logo
4:25 pm - 3:20 pm
BWI
-
BHD
17h 55m
2 stops
$962American Airlines
Tue, Jun 23 - Tue, Aug 11
Multiple Airlines Logo
3:35 pm - 5:00 pm
BFS
-
IAD
30h 25m
2 stops
Multiple Airlines Logo
8:20 pm - 11:15 pm
IAD
-
BFS
21h 55m
2 stops
$1,039Multiple Airlines
Thu, Jun 11 - Wed, Jun 17
Multiple Airlines Logo
6:40 am - 7:00 pm
BFS
-
IAD
17h 20m
2 stops
Multiple Airlines Logo
5:15 pm - 6:55 pm
IAD
-
BFS
20h 40m
2 stops
$1,056Multiple Airlines
Thu, Jun 25 - Thu, Jul 2
Virgin Atlantic Logo
5:30 pm - 3:35 pm
BHD
-
IAD
27h 05m
1 stop
Virgin Atlantic Logo
6:10 pm - 9:20 am
IAD
-
BHD
10h 10m
1 stop
$1,408Virgin Atlantic
Sun, May 24 - Mon, Sep 7
Delta Logo
9:50 am - 3:35 pm
BHD
-
IAD
10h 45m
1 stop
Delta Logo
12:29 pm - 9:20 am
IAD
-
BHD
15h 51m
2 stops
$1,512Delta
Tue, Jun 23 - Tue, Aug 11

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
Jun 23
BHD9:40 amBelfast City
15h 00m
1 stop
BWI7:40 pmBaltimore/Washington
Aug 11
BWI7:24 pmBaltimore/Washington
17h 11m
2 stops
BHD5:35 pmBelfast City
$938
American Airlines
Jun 23
BHD6:30 amBelfast City
18h 10m
1 stop
BWI7:40 pmBaltimore/Washington
Aug 11
BWI11:59 amBaltimore/Washington
17h 46m
2 stops
BHD10:45 amBelfast City
$953
American Airlines
Jun 23
BHD6:30 amBelfast City
17h 58m
2 stops
BWI7:28 pmBaltimore/Washington
Aug 11
BWI11:59 amBaltimore/Washington
17h 46m
2 stops
BHD10:45 amBelfast City
$959

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

Our best KLM deals on Northern Ireland to Washington, D.C. flight tickets
KLM
Jun 23
BHD9:50 amBelfast City
14h 45m
2 stops
IAD7:35 pmWashington, D.C. Dulles Intl
Aug 11
IAD12:29 pmWashington, D.C. Dulles Intl
15h 51m
2 stops
BHD9:20 amBelfast City
$1,703
KLM
Jun 23
BHD9:50 amBelfast City
14h 45m
2 stops
IAD7:35 pmWashington, D.C. Dulles Intl
Aug 11
IAD12:29 pmWashington, D.C. Dulles Intl
15h 51m
2 stops
BHD9:20 amBelfast City
$1,707
KLM
Jun 23
BHD9:50 amBelfast City
14h 45m
2 stops
IAD7:35 pmWashington, D.C. Dulles Intl
Aug 11
IAD12:29 pmWashington, D.C. Dulles Intl
15h 51m
2 stops
BHD9:20 amBelfast City
$1,708

momondo Fare Finder

 
Customize 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 832,500 searches. Data last updated May 14, 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 round-trip

BelfastBaltimore

BHD - BWI

BHDBWI

Belfast City

Tue 6/23

9:40 am-7:40 pm

1 stop15h 00m

Baltimore/Washington

Tue 8/11

7:24 pm-5:35 pm

2 stops17h 11m

$938

BelfastBaltimore

BHD - BWI

BHDBWI

Belfast City

Wed 10/7

10:05 am-5:41 pm

2 stops36h 36m

Baltimore/Washington

Sun 10/11

8:17 pm-12:55 pm

2 stops35h 38m

$941

BelfastBaltimore

BHD - BWI

BHDBWI

Belfast City

Wed 10/7

11:35 am-12:01 am

2 stops17h 26m

Baltimore/Washington

Sun 10/11

8:17 pm-12:55 pm

2 stops35h 38m

$951

BelfastBaltimore

BHD - BWI

BHDBWI

Belfast City

Tue 6/23

6:30 am-7:40 pm

1 stop18h 10m

Baltimore/Washington

Tue 8/11

11:59 am-10:45 am

2 stops17h 46m

$953

BelfastBaltimore

BHD - BWI

BHDBWI

Belfast City

Tue 6/23

6:30 am-7:28 pm

2 stops17h 58m

Baltimore/Washington

Tue 8/11

11:59 am-10:45 am

2 stops17h 46m

$959

BelfastBaltimore

BHD - BWI

BHDBWI

Belfast City

Tue 6/23

9:40 am-7:40 pm

1 stop15h 00m

Baltimore/Washington

Tue 8/11

4:25 pm-3:20 pm

2 stops17h 55m

$962

BelfastWashington, D.C.

BFS - IAD

BFSIAD

Belfast Intl

Thu 6/11

3:35 pm-5:00 pm

2 stops30h 25m

Washington, D.C. Dulles Intl

Wed 6/17

8:20 pm-11:15 pm

2 stops21h 55m

$1,039

BelfastWashington, D.C.

BFS - IAD

BFSIAD

Belfast Intl

Thu 6/25

6:40 am-7:00 pm

2 stops17h 20m

Washington, D.C. Dulles Intl

Thu 7/2

5:15 pm-6:55 pm

2 stops20h 40m

$1,056

BelfastWashington, D.C.

BHD - IAD

BHDIAD

Belfast City

Sun 5/24

5:30 pm-3:35 pm

1 stop27h 05m

Washington, D.C. Dulles Intl

Mon 9/7

6:10 pm-9:20 am

1 stop10h 10m

$1,408
Quickest round-trip

BelfastWashington, D.C.

BHD - IAD

BHDIAD

Belfast City

Tue 6/23

9:50 am-3:35 pm

1 stop10h 45m

Washington, D.C. Dulles Intl

Tue 8/11

12:29 pm-9:20 am

2 stops15h 51m

$1,512

Flights are sorted by cheapest round-trip 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

Can stopping save me money on Northern Ireland to Washington, D.C. flights?

You could potentially save up to 16% on your flight if you consider stops on a Northern Ireland to Washington, D.C. flight.

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. refresh daily.

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

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify 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.

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

Book flights to Washington, D.C. if you plan to visit one of these locations
Alexandria
National Harbor
Gettysburg
Arlington
Waldorf
Woodbridge
Laurel
Gaithersburg
Colonial Beach
Fredericksburg
Silver Spring
Towson
Rockville
Manassas
Linthicum Heights
Tysons
Bethesda
Springfield
Fairfax
College Park

Why use momondo?

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

It is quick and easy to find Northern Ireland to Washington, D.C. flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Washington, D.C. that suits you.

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

All flight searches from Northern Ireland to Washington, D.C. on momondo can be filtered to show those which offer flexible booking policies.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Northern Ireland to Washington, D.C..

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

Of course. momondo tracks the price of Northern Ireland to Washington, D.C. flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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1 adult
Sat 6/13
Sat 6/20

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.