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Cheap flights from Northern Ireland to Washington, D.C. from £468

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/8. Fares are subject to change and may not be available on all flights or dates of travel.
BFS — WAS
18 May — 25 May1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Northern Ireland to Washington, D.C.

Enter your travel dates to find the best prices.

Cheapest flights from Northern Ireland to Washington, D.C.
Explore the most affordable flight options available from Northern Ireland to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 April 2026.

Tue 23/609:40
BHD
-
BWI
1 stop15h 00m
American Airlines
Tue 11/816:25
BWI
-
BHD
2 stops17h 55m
American Airlines
Deal found 18/4£689
Tue 23/613:45
BHD
-
IAD
1 stop11h 35m
American Airlines
Tue 11/822:25
IAD
-
BHD
1 stop11h 55m
American Airlines
Deal found 16/4£717
Tue 23/609:40
BHD
-
DCA
2 stops15h 30m
American Airlines
Tue 11/815:11
DCA
-
BHD
2 stops14h 34m
American Airlines
Deal found 17/4£720
Thu 1/1009:35
BHD
-
BWI
1 stop15h 05m
British Airways
Mon 5/1021:30
BWI
-
BHD
1 stop10h 25m
British Airways
Deal found 16/4£734
Thu 3/1220:00
BHD
-
BWI
1 stop27h 45m
British Airways
Mon 7/1217:47
BWI
-
BHD
2 stops17h 18m
British Airways
Deal found 17/4£737
Fri 28/809:35
BHD
-
DCA
2 stops16h 24m
British Airways
Tue 1/917:22
DCA
-
BHD
2 stops16h 58m
British Airways
Deal found 16/4£746
Thu 3/1206:35
BHD
-
IAD
1 stop18h 20m
British Airways
Mon 7/1221:45
IAD
-
BHD
1 stop13h 20m
British Airways
Deal found 16/4£748
Thu 3/1211:05
BHD
-
DCA
2 stops17h 51m
British Airways
Mon 7/1215:54
DCA
-
BHD
2 stops13h 46m
British Airways
Deal found 16/4£753
Tue 30/607:35
BFS
-
DCA
3 stops33h 25m
Multiple Airlines
Tue 21/709:40
DCA
-
BFS
3 stops24h 35m
Multiple Airlines
Deal found 14/4£768
Mon 11/506:30
BHD
-
IAD
2 stops22h 29m
Multiple Airlines
Mon 18/515:26
IAD
-
BHD
2 stops16h 29m
Multiple Airlines
Deal found 13/4£781
Tue 30/607:00
BHD
-
DCA
3 stops34h 00m
Multiple Airlines
Tue 21/712:40
DCA
-
BHD
3 stops22h 35m
Multiple Airlines
Deal found 14/4£791
Mon 11/506:30
BHD
-
BWI
2 stops32h 35m
Multiple Airlines
Mon 18/515:31
BWI
-
BHD
2 stops20h 59m
Multiple Airlines
Deal found 13/4£791

Find flight deals from Northern Ireland to Washington, D.C.

Keep the following information in mind while searching for Northern Ireland to Washington, D.C. flight deals. Data was last updated 18 April 2026.

Round-trip from

£689

One-way from

£468
American Airlines
  • American Airlines
  • 23/6-11/8
  • 3 total stops
  • 32h 55m total
  • Northern Ireland to Washington, D.C.
Search Deals
8/8
  • 8/8
  • 3 total stops
  • 46h 50m total
  • Northern Ireland to Washington, D.C.
Search Deals

Cheapflights 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, Cheapflights users made 858,174 searches. Data last updated 18 April 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

16:25-19:40

1 stop32h 15m

Baltimore/Washington

Tue 11/8

19:25-10:45

1 stop10h 20m

£689

BelfastWashington, D.C.

BHD - IAD

BHDIAD

Belfast City

Tue 23/6

09:40-20:20

1 stop15h 40m

Washington, D.C. Dulles Intl

Tue 11/8

13:23-10:45

2 stops16h 22m

£717

BelfastWashington, D.C.

BHD - DCA

BHDDCA

Belfast City

Tue 23/6

09:40-20:10

2 stops15h 30m

Washington, D.C. Reagan-National

Tue 11/8

15:11-10:45

2 stops14h 34m

£720

BelfastBaltimore

BHD - BWI

BHDBWI

Belfast City

Fri 2/10

11:00-19:40

1 stop13h 40m

Baltimore/Washington

Mon 5/10

14:07-12:55

2 stops17h 48m

£734

BelfastBaltimore

BHD - BWI

BHDBWI

Belfast City

Thu 1/10

20:35-19:40

1 stop28h 05m

Baltimore/Washington

Mon 5/10

10:50-15:30

2 stops23h 40m

£734

BelfastWashington, D.C.

BHD - DCA

BHDDCA

Belfast City

Fri 28/8

09:35-20:59

2 stops16h 24m

Washington, D.C. Reagan-National

Tue 1/9

17:22-15:20

2 stops16h 58m

£746
Fastest return journey

BelfastWashington, D.C.

BHD - IAD

BHDIAD

Belfast City

Thu 8/10

12:45-20:20

1 stop12h 35m

Washington, D.C. Dulles Intl

Mon 12/10

17:45-12:55

1 stop14h 10m

£753

BelfastWashington, D.C.

BFS - DCA

BFSDCA

Belfast Intl

Tue 30/6

07:35-12:00

3 stops33h 25m

Washington, D.C. Reagan-National

Tue 21/7

09:40-15:15

3 stops24h 35m

£768

BelfastWashington, D.C.

BHD - IAD

BHDIAD

Belfast City

Mon 11/5

06:30-23:59

2 stops22h 29m

Washington, D.C. Dulles Intl

Mon 18/5

15:26-12:55

2 stops16h 29m

£781

BelfastWashington, D.C.

BHD - IAD

BHDIAD

Belfast City

Mon 11/5

06:30-15:45

1 stop14h 15m

Washington, D.C. Dulles Intl

Mon 18/5

19:15-12:55

1 stop12h 40m

£781

Flights are sorted by cheapest return flights first.

Deals found on 16/4

Showing 1-10 of 27 resultsSorted by cheapest first
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Best time to book a flight from Northern Ireland to Washington, D.C.

Have a flexible travel schedule? Discover the best time to fly to Washington, D.C. from Northern Ireland with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Northern Ireland to Washington, D.C.
No data available for this route at this time. Please check back soon.

Related info for your journey

Find useful and relevant information for your journey from Northern Ireland to Washington, D.C.. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Northern Ireland to Washington, D.C.?

    There are many flights that can get you from Northern Ireland to Washington, D.C. in 13h 40m. Fly via American Airlines or British Airways to get the fastest option. Airlines will cover a distance of 3348 mi. This flight may include one or multiple stops.

  • What are the most popular routes from Northern Ireland to Washington, D.C.?

    Most travelers choose Belfast Intl - Baltimore/Washington, Belfast Intl - Washington, D.C. Dulles Intl or Belfast City - Washington, D.C. Dulles Intl when deciding on the best route from Northern Ireland to Washington, D.C..

  • Can I find deals for flights from Northern Ireland to Washington, D.C. that include hotel bookings?

    Yes. In addition to deals on Northern Ireland to Washington, D.C. flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Northern Ireland to Washington, D.C.?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Northern Ireland to Washington, D.C..

  • Can I find deals for business class flights from Northern Ireland to Washington, D.C.?

    Yes. Cheapflights offers flight deals from Northern Ireland to Washington, D.C. by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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

Book flights to Washington, D.C. if you plan to visit one of these locations
Silver Spring
Hanover
Oxon Hill
Gaithersburg
Woodbridge
Arlington
Alexandria

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How does Cheapflights help users find flights from Northern Ireland to Washington, D.C.?

Deals for Northern Ireland to Washington, D.C. flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from Northern Ireland to Washington, D.C.?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Northern Ireland to Washington, D.C..

Can Cheapflights find flights from Northern Ireland to Washington, D.C. with no change fees?

Need flexible booking options for your flight to Washington, D.C. from Northern Ireland? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Northern Ireland to Washington, D.C. become cheaper?

Not ready to book yet? You can track prices for flights from Northern Ireland to Washington, D.C. on Cheapflights with our Price Alert feature and get notified when better prices are available.

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