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Cheap flights from Northern Ireland to Washington, D.C. from £316

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 31/1. Fares are subject to change and may not be available on all flights or dates of travel.
BFS — WAS
25 Jan — 1 Feb1
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.

Best flights from Northern Ireland to Washington, D.C.
Discover carefully curated flight deals from Northern Ireland to Washington, D.C. that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 26 December 2025.

Wed 4/215:40BHD - IAD
2 stops29h 50mBritish Airways
Sun 8/221:45IAD - BHD
1 stop11h 10mBritish Airways
Deal found 23/12£533
Sat 7/207:00BFS - IAD
2 stops16h 30mMultiple Airlines
Sat 14/219:40IAD - BFS
2 stops12h 50mMultiple Airlines
Deal found 24/12£548
Thu 5/209:05BHD - IAD
1 stop11h 30mBritish Airways
Mon 9/217:46IAD - BHD
2 stops17h 19mBritish Airways
Deal found 23/12£534
Fri 30/106:45BHD - DCA
2 stops17h 09mBritish Airways
Tue 3/213:35DCA - BHD
2 stops15h 55mBritish Airways
Deal found 23/12£538
Sat 7/208:20BFS - BWI
2 stops15h 20mMultiple Airlines
Sat 14/219:40BWI - BFS
2 stops15h 30mMultiple Airlines
Deal found 24/12£631
Wed 4/206:35BHD - DCA
2 stops17h 19mBritish Airways
Sun 8/212:10DCA - BHD
2 stops17h 10mBritish Airways
Deal found 24/12£538
Thu 5/206:35BHD - BWI
1 stop17h 10mBritish Airways
Mon 9/211:13BWI - BHD
2 stops23h 52mBritish Airways
Deal found 23/12£584

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 26 December 2025.

Round-trip from

£531

One-way from

£316
British Airways
  • British Airways
  • 30/1-3/2
  • 2 total stops
  • 25h 00m total
  • Northern Ireland to Washington, D.C.
Search Deals
31/1
  • 31/1
  • 3 total stops
  • 26h 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 26 December 2025.
Use the filters below to find and compare flights from Northern Ireland to Washington, D.C. that are best for you.

Fly from

Northern Ireland

Fly to

Washington, D.C.

Route

Depart

Return

Price

BelfastWashington, D.C.

BHD - IAD

BHDIAD

Belfast City

Wed 4/2

15:40-16:30

2 stops29h 50m

Washington, D.C. Dulles Intl

Sun 8/2

21:45-13:55

1 stop11h 10m

£533

BelfastWashington, D.C.

BHD - IAD

BHDIAD

Belfast City

Thu 5/2

09:05-15:35

1 stop11h 30m

Washington, D.C. Dulles Intl

Mon 9/2

17:46-16:05

2 stops17h 19m

£534

BelfastWashington, D.C.

BHD - DCA

BHDDCA

Belfast City

Fri 30/1

06:45-18:54

2 stops17h 09m

Washington, D.C. Reagan-National

Tue 3/2

13:35-10:30

2 stops15h 55m

£538

BelfastWashington, D.C.

BHD - DCA

BHDDCA

Belfast City

Wed 4/2

06:35-18:54

2 stops17h 19m

Washington, D.C. Reagan-National

Sun 8/2

12:10-10:20

2 stops17h 10m

£538

BelfastWashington, D.C.

BFS - IAD

BFSIAD

Belfast Intl

Sat 7/2

07:00-18:30

2 stops16h 30m

Washington, D.C. Dulles Intl

Sat 14/2

19:40-13:30

2 stops12h 50m

£548

BelfastBaltimore

BHD - BWI

BHDBWI

Belfast City

Thu 5/2

06:35-18:45

1 stop17h 10m

Baltimore/Washington

Mon 9/2

11:13-16:05

2 stops23h 52m

£584

BelfastBaltimore

BFS - BWI

BFSBWI

Belfast Intl

Sat 7/2

08:20-18:40

2 stops15h 20m

Baltimore/Washington

Sat 14/2

19:40-16:10

2 stops15h 30m

£631

BelfastWashington, D.C.

BFS - IAD

BFSIAD

Belfast Intl

Sat 31/1

23:10-21:00

3 stops26h 50m

£316

BelfastWashington, D.C.

BHD - IAD

BHDIAD

Belfast City

Sat 31/1

16:45-18:45

3 stops31h 00m

£360

BelfastBaltimore

BFS - BWI

BFSBWI

Belfast Intl

Sat 31/1

23:10-19:12

3 stops49h 02m

£377

Flights are sorted by cheapest return flights first.

Deals found on 25/12

Showing 1-10 of 22 results
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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.

What is the cheapest time of day to fly from NIR to WAS?

Find hourly flight availability from Northern Ireland to Washington, D.C.. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 26 December 2025.

When flying from Northern Ireland to Washington, D.C., the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 36% versus a flight in the afternoon.

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 29h 50m. 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 Intl - Baltimore/Washington, Belfast Intl - Washington, D.C. Reagan-National 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
Hanover
Oxon Hill
Woodbridge
Arlington
Alexandria
College Park

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Alternative routes for Northern Ireland to Washington, D.C.

See prices for flight routes from nearby airports that may be better suited for you.
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Norwich to Reagan-National flights
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Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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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