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Cheap flights from Belfast to Washington, D.C. from £278

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 5/8. Fares are subject to change and may not be available on all flights or dates of travel.
BHD — WAS
4 Jul — 11 Jul1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Belfast to Washington, D.C.

Enter your travel dates to find the best prices.

Cheapest flights from Belfast to Washington, D.C.
Explore the most affordable flight options available from Belfast to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 4 June 2026.

Wed 2/911:35
BHD
-
IAD
1 stop13h 05m
British Airways
Sun 6/913:23
IAD
-
BHD
2 stops16h 07m
British Airways
Deal found 1/6£682
Wed 2/910:05
BHD
-
DCA
2 stops18h 28m
British Airways
Sun 6/915:17
DCA
-
BHD
2 stops14h 13m
British Airways
Deal found 1/6£686
Tue 23/613:45
BHD
-
BWI
1 stop10h 55m
American Airlines
Tue 11/819:24
BWI
-
BHD
2 stops14h 56m
American Airlines
Deal found 3/6£690
Tue 23/616:25
BHD
-
IAD
1 stop30h 05m
American Airlines
Tue 11/817:34
IAD
-
BHD
2 stops16h 46m
American Airlines
Deal found 2/6£690
Tue 23/613:45
BHD
-
BWI
1 stop10h 55m
British Airways
Tue 11/819:25
BWI
-
BHD
1 stop10h 20m
British Airways
Deal found 2/6£693
Tue 23/609:40
BHD
-
IAD
1 stop11h 10m
British Airways
Tue 11/821:30
IAD
-
BHD
1 stop12h 50m
British Airways
Deal found 3/6£693
Tue 23/609:40
BHD
-
DCA
2 stops15h 30m
American Airlines
Tue 11/819:14
DCA
-
BHD
2 stops15h 06m
American Airlines
Deal found 2/6£693
Mon 29/606:40
BFS
-
DCA
3 stops34h 20m
Multiple Airlines
Mon 6/706:59
DCA
-
BFS
2 stops25h 21m
Multiple Airlines
Deal found 1/6£716
Sat 18/721:05
BFS
-
IAD
3 stops47h 05m
Multiple Airlines
Sat 25/720:30
IAD
-
BFS
2 stops21h 55m
Multiple Airlines
Deal found 3/6£745
Wed 2/1206:35
BHD
-
BWI
2 stops17h 50m
British Airways
Sun 6/1220:18
BWI
-
BHD
2 stops33h 22m
British Airways
Deal found 30/5£795
Wed 2/910:05
BHD
-
BWI
1 stop12h 10m
British Airways
Sun 6/910:30
BWI
-
BHD
2 stops26h 10m
British Airways
Deal found 30/5£821
Mon 29/609:40
BHD
-
IAD
1 stop12h 50m
British Airways
Mon 6/722:25
IAD
-
BHD
1 stop14h 05m
British Airways
Deal found 1/6£832

Find flight deals from Belfast to Washington, D.C.

Discover tips and strategies to find the most affordable flight options for your journey from Belfast (BF1) to Washington, D.C. (WAS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 4 June 2026.

Round-trip from

£682

One-way from

£278
British Airways
  • British Airways
  • 2/9-6/9
  • 3 total stops
  • 29h 12m total
  • Belfast to Washington, D.C.
Search Deals
5/8
  • 5/8
  • 3 total stops
  • 56h 15m total
  • Belfast to Washington, D.C.
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Belfast 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 4 June 2026.
Use the filters below to find and compare flights from Belfast 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

Wed 2/9

11:35-19:40

1 stop13h 05m

Washington, D.C. Dulles Intl

Sun 6/9

13:23-10:30

2 stops16h 07m

£682

BelfastWashington, D.C.

BHD - DCA

BHDDCA

Belfast City

Wed 2/9

10:05-23:33

2 stops18h 28m

Washington, D.C. Reagan-National

Sun 6/9

15:17-10:30

2 stops14h 13m

£686

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

£690

BelfastWashington, D.C.

BHD - IAD

BHDIAD

Belfast City

Tue 23/6

16:25-17:30

1 stop30h 05m

Washington, D.C. Dulles Intl

Tue 11/8

22:25-17:35

1 stop14h 10m

£690
Fastest return journey

BelfastBaltimore

BHD - BWI

BHDBWI

Belfast City

Tue 23/6

13:45-19:40

1 stop10h 55m

Baltimore/Washington

Tue 11/8

19:25-10:45

1 stop10h 20m

£693

BelfastWashington, D.C.

BHD - IAD

BHDIAD

Belfast City

Tue 23/6

09:40-15:50

1 stop11h 10m

Washington, D.C. Dulles Intl

Tue 11/8

21:30-15:20

1 stop12h 50m

£693

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

19:14-15:20

2 stops15h 06m

£693

BelfastWashington, D.C.

BFS - DCA

BFSDCA

Belfast Intl

Mon 29/6

06:40-12:00

3 stops34h 20m

Washington, D.C. Reagan-National

Mon 6/7

06:59-13:20

2 stops25h 21m

£716

BelfastWashington, D.C.

BFS - IAD

BFSIAD

Belfast Intl

Sat 18/7

21:05-15:10

3 stops47h 05m

Washington, D.C. Dulles Intl

Sat 25/7

20:30-23:25

2 stops21h 55m

£745

BelfastBaltimore

BHD - BWI

BHDBWI

Belfast City

Wed 2/9

10:05-17:15

1 stop12h 10m

Baltimore/Washington

Sun 6/9

10:30-17:40

2 stops26h 10m

£821

Flights are sorted by cheapest return flights first.

Deals found on 2/6

Showing 1-10 of 37 resultsSorted by cheapest first
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Best time to book a flight from Belfast to Washington, D.C.

Have a flexible travel schedule? Discover the best time to fly to Washington, D.C. from Belfast 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 Belfast 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 Belfast 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 Belfast to Washington, D.C.?

    Departing from Belfast to Washington, D.C. will take you 13h 05m. Airlines will cover a distance of 3390 mi. Both multi-stop and direct flights can be found to your destination and back.

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

    When deciding which route to take from Belfast to Washington, D.C. consider Belfast City - Washington, D.C. Reagan-National, Belfast Intl - Washington, D.C. Dulles Intl or Belfast City - Washington, D.C. Dulles Intl as they are the most popular.

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

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

  • How can I find direct flights from Belfast 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 Belfast to Washington, D.C..

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

    Yes. Cheapflights offers flight deals from Belfast 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
Alexandria

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Belfast to Washington, D.C.

See prices for flight routes from nearby airports that may be better suited for you.
Belfast Intl to Dulles Intl flights
Belfast City to Reagan-National flights
Belfast City to Dulles Intl flights

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 Belfast to Washington, D.C.?

Cheapflights makes it easy to find Belfast to Washington, D.C. flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

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

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Washington, D.C. from Belfast.

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

Yes, we can. To see specific flights from Belfast to Washington, D.C. with no change fees, users can toggle flexible booking options after using the search form above to find flights.

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

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

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