Find flights
When to book
FAQs

Cheap flights from Belfast to Washington, D.C. from £244

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 26/5. Fares are subject to change and may not be available on all flights or dates of travel.
BHD — WAS
3 Apr — 10 Apr1
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 March 2026.

Thu 23/414:20
BHD
-
IAD
1 stop11h 00m
British Airways
Mon 27/420:11
IAD
-
BHD
2 stops17h 34m
British Airways
Deal found 3/3£612
Sat 21/309:15
BHD
-
BWI
1 stop14h 30m
British Airways
Wed 25/321:35
BWI
-
BHD
1 stop12h 40m
British Airways
Deal found 4/3£719
Wed 18/306:35
BHD
-
IAD
1 stop14h 00m
British Airways
Sun 22/319:20
IAD
-
BHD
1 stop11h 00m
British Airways
Deal found 27/2£727
Thu 23/420:35
BHD
-
BWI
1 stop28h 05m
British Airways
Mon 27/415:31
BWI
-
BHD
2 stops22h 14m
British Airways
Deal found 3/3£743
Wed 18/309:15
BHD
-
DCA
2 stops18h 35m
British Airways
Sun 22/317:00
DCA
-
BHD
2 stops13h 20m
British Airways
Deal found 3/3£776
Sat 4/709:35
BHD
-
BWI
1 stop15h 05m
British Airways
Sun 5/721:35
BWI
-
BHD
1 stop12h 00m
British Airways
Deal found 4/3£819
Fri 3/406:05
BFS
-
BWI
2 stops22h 54m
Multiple Airlines
Fri 10/420:30
BWI
-
BFS
3 stops21h 50m
Multiple Airlines
Deal found 28/2£1,052
Thu 5/309:05
BHD
-
BWI
1 stop14h 40m
British Airways
Mon 9/317:59
BWI
-
BHD
2 stops16h 16m
British Airways
Deal found 2/3£1,066
Fri 3/411:00
BHD
-
BWI
1 stop13h 40m
British Airways
Fri 10/421:30
BWI
-
BHD
1 stop13h 00m
British Airways
Deal found 28/2£1,140

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 March 2026.

Round-trip from

£612

One-way from

£244
British Airways
  • British Airways
  • 23/4-27/4
  • 3 total stops
  • 28h 34m total
  • Belfast to Washington, D.C.
Search Deals
26/5
  • 26/5
  • 2 total stops
  • 41h 08m 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 March 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

BelfastWashington, D.C.

BHD - IAD

BHDIAD

Belfast City

Thu 23/4

06:30-17:25

1 stop15h 55m

Washington, D.C. Dulles Intl

Mon 27/4

19:15-12:55

1 stop12h 40m

£612

BelfastWashington, D.C.

BHD - IAD

BHDIAD

Belfast City

Wed 18/3

06:35-16:35

1 stop14h 00m

Washington, D.C. Dulles Intl

Sun 22/3

19:20-10:20

1 stop11h 00m

£727

BelfastBaltimore

BHD - BWI

BHDBWI

Belfast City

Thu 30/4

19:30-19:40

1 stop29h 10m

Baltimore/Washington

Mon 4/5

15:31-18:45

2 stops22h 14m

£743

BelfastBaltimore

BHD - BWI

BHDBWI

Belfast City

Thu 23/4

20:35-19:34

2 stops27h 59m

Baltimore/Washington

Mon 27/4

15:31-18:45

2 stops22h 14m

£747

BelfastWashington, D.C.

BHD - DCA

BHDDCA

Belfast City

Wed 18/3

09:15-23:50

2 stops18h 35m

Washington, D.C. Reagan-National

Sun 22/3

17:00-10:20

2 stops13h 20m

£776

BelfastBaltimore

BFS - BWI

BFSBWI

Belfast Intl

Fri 3/4

06:05-23:59

2 stops22h 54m

Baltimore/Washington

Fri 10/4

20:30-23:20

3 stops21h 50m

£1,052

BelfastBaltimore

BHD - BWI

BHDBWI

Belfast City

Fri 3/4

11:00-19:40

1 stop13h 40m

Baltimore/Washington

Fri 10/4

21:30-15:30

1 stop13h 00m

£1,140

BelfastBaltimore

BFS - BWI

BFSBWI

Belfast Intl

Tue 26/5

20:15-08:23

2 stops41h 08m

£244

BelfastBaltimore

BFS - BWI

BFSBWI

Belfast Intl

Sun 10/5

21:05-16:40

2 stops48h 35m

£353

BelfastBaltimore

BHD - BWI

BHDBWI

Belfast City

Tue 17/3

18:00-18:58

2 stops52h 58m

£403

Flights are sorted by cheapest return flights first.

Deals found on 1/3

Showing 1-10 of 23 resultsSorted by cheapest first
1
2
3

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 15h 55m. Airlines will cover a distance of 3390 mi.

  • 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 Intl - Baltimore/Washington, Belfast City - Baltimore/Washington or Belfast Intl - 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
Woodbridge
Arlington
Alexandria
College Park

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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 Dulles Intl flights
Belfast City to Reagan-National 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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.