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Cheap flights from Northern Ireland to Washington, D.C. from £672

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 30/9. Fares are subject to change and may not be available on all flights or dates of travel.
BFS — WAS
10 Aug — 17 Aug1
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 11 July 2026.

Wed 30/920:35
BHD
-
IAD
2 stops27h 15m
British Airways
Sun 4/1017:45
IAD
-
BHD
1 stop11h 45m
British Airways
Deal found 10/7£672
Fri 4/906:30
BHD
-
IAD
2 stops38h 00m
British Airways
Sun 6/922:25
IAD
-
BHD
1 stop11h 10m
British Airways
Deal found 10/7£680
Wed 30/911:35
BHD
-
DCA
2 stops16h 35m
British Airways
Sun 4/1015:06
DCA
-
BHD
2 stops14h 24m
British Airways
Deal found 8/7£683
Thu 6/821:05
BFS
-
IAD
3 stops28h 19m
Multiple Airlines
Wed 12/817:45
IAD
-
BFS
2 stops23h 35m
Multiple Airlines
Deal found 7/7£724
Sun 23/820:20
BFS
-
IAD
2 stops29h 15m
Multiple Airlines
Sun 30/820:30
IAD
-
BFS
2 stops19h 30m
Multiple Airlines
Deal found 9/7£761
Sat 22/820:15
BFS
-
BWI
3 stops31h 00m
Multiple Airlines
Sat 29/820:30
BWI
-
BFS
2 stops19h 10m
Multiple Airlines
Deal found 8/7£961
Fri 21/821:10
BFS
-
BWI
3 stops27h 15m
Multiple Airlines
Fri 28/820:30
BWI
-
BFS
3 stops21h 50m
Multiple Airlines
Deal found 7/7£1,151

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 11 July 2026.

Round-trip from

£672
British Airways
  • British Airways
  • 30/9-4/10
  • 3 total stops
  • 39h 00m 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 11 July 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

BelfastWashington, D.C.

BHD - IAD

BHDIAD

Belfast City

Fri 4/9

09:35-20:20

1 stop15h 45m

Washington, D.C. Dulles Intl

Sun 6/9

22:25-14:35

1 stop11h 10m

£681
Fastest return journey

BelfastWashington, D.C.

BHD - IAD

BHDIAD

Belfast City

Wed 30/9

11:35-20:20

1 stop13h 45m

Washington, D.C. Dulles Intl

Sun 4/10

22:25-14:35

1 stop11h 10m

£681

BelfastWashington, D.C.

BHD - DCA

BHDDCA

Belfast City

Wed 30/9

11:35-23:10

2 stops16h 35m

Washington, D.C. Reagan-National

Sun 4/10

15:06-10:30

2 stops14h 24m

£683

BelfastWashington, D.C.

BFS - IAD

BFSIAD

Belfast Intl

Thu 6/8

06:40-15:45

2 stops14h 05m

Washington, D.C. Dulles Intl

Wed 12/8

17:15-19:15

2 stops21h 00m

£731

BelfastWashington, D.C.

BFS - IAD

BFSIAD

Belfast Intl

Sun 23/8

20:20-20:35

2 stops29h 15m

Washington, D.C. Dulles Intl

Sun 30/8

20:30-21:00

2 stops19h 30m

£761

BelfastBaltimore

BFS - BWI

BFSBWI

Belfast Intl

Sat 22/8

20:15-22:15

3 stops31h 00m

Baltimore/Washington

Sat 29/8

20:30-20:40

2 stops19h 10m

£961

BelfastBaltimore

BFS - BWI

BFSBWI

Belfast Intl

Fri 21/8

21:10-19:25

3 stops27h 15m

Baltimore/Washington

Fri 28/8

20:30-23:20

3 stops21h 50m

£1,151

Flights are sorted by cheapest return flights first.

Deals found on 10/7

Sorted by cheapest first

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 27h 15m. Fly via British Airways to get the fastest option. Airlines will cover a distance of 3390 mi.

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

    Most travelers choose Belfast City - Washington, D.C. Reagan-National, Belfast Intl - Baltimore/Washington or Belfast City - Baltimore/Washington 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
Gaithersburg
Oxon Hill
Hanover
Woodbridge
Alexandria

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

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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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