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Cheap flights from Belfast to Washington, D.C. from £308

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 13/3. Fares are subject to change and may not be available on all flights or dates of travel.
BHD — WAS
27 Feb — 6 Mar1
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 28 January 2026.

Thu 12/314:25
BFS
-
IAD
2 stops31h 15m
Multiple Airlines
Thu 19/321:30
IAD
-
BFS
2 stops20h 50m
Multiple Airlines
Deal found 26/1£507
Mon 23/211:30
BHD
-
IAD
1 stop13h 25m
British Airways
Sun 1/318:20
IAD
-
BHD
1 stop11h 00m
British Airways
Deal found 25/1£529
Thu 5/306:35
BHD
-
IAD
1 stop14h 00m
British Airways
Mon 9/322:45
IAD
-
BHD
1 stop11h 30m
British Airways
Deal found 25/1£531
Mon 23/206:30
BHD
-
IAD
1 stop14h 35m
Delta
Sun 1/312:24
IAD
-
BHD
2 stops23h 26m
Delta
Deal found 25/1£534
Thu 12/210:40
BHD
-
DCA
2 stops17h 20m
British Airways
Mon 16/206:23
DCA
-
BHD
2 stops21h 42m
British Airways
Deal found 25/1£558
Thu 5/218:50
BHD
-
IAD
2 stops25h 45m
British Airways
Mon 9/213:08
IAD
-
BHD
2 stops20h 07m
British Airways
Deal found 25/1£567
Thu 5/211:05
BHD
-
DCA
2 stops15h 59m
British Airways
Mon 9/215:30
DCA
-
BHD
2 stops17h 45m
British Airways
Deal found 25/1£580
Thu 12/215:05
BHD
-
BWI
1 stop32h 40m
British Airways
Mon 16/218:04
BWI
-
BHD
2 stops19h 31m
British Airways
Deal found 25/1£605
Thu 12/306:30
BFS
-
BWI
2 stops21h 29m
Multiple Airlines
Thu 19/320:40
BWI
-
BFS
3 stops20h 25m
Multiple Airlines
Deal found 27/1£614
Thu 5/211:05
BHD
-
BWI
2 stops39h 13m
British Airways
Mon 9/214:46
BWI
-
BHD
2 stops18h 29m
British Airways
Deal found 25/1£633
Tue 10/207:20
BHD
-
IAD
2 stops16h 10m
Multiple Airlines
Sat 14/219:40
IAD
-
BHD
2 stops20h 10m
Multiple Airlines
Deal found 25/1£665
Thu 5/309:05
BHD
-
BWI
1 stop14h 40m
British Airways
Mon 9/317:59
BWI
-
BHD
2 stops36h 31m
British Airways
Deal found 27/1£747

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 28 January 2026.

Round-trip from

£507

One-way from

£308
12/3-19/3
  • 12/3-19/3
  • 4 total stops
  • 52h 05m total
  • Belfast to Washington, D.C.
Search Deals
13/3
  • 13/3
  • 3 total stops
  • 46h 20m 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 28 January 2026.
Use the filters below to find and compare flights from Belfast to Washington, D.C. that are best for you.

Fly from

Belfast

Fly to

Washington, D.C.

Route

Depart

Return

Price

BelfastWashington, D.C.

BFS - IAD

BFSIAD

Belfast Intl

Thu 12/3

14:25-17:40

2 stops31h 15m

Washington, D.C. Dulles Intl

Thu 19/3

21:30-22:20

2 stops20h 50m

£507

BelfastWashington, D.C.

BHD - IAD

BHDIAD

Belfast City

Mon 23/2

11:30-19:55

1 stop13h 25m

Washington, D.C. Dulles Intl

Sun 1/3

18:20-10:20

1 stop11h 00m

£529

BelfastWashington, D.C.

BHD - IAD

BHDIAD

Belfast City

Thu 5/3

11:05-19:55

1 stop13h 50m

Washington, D.C. Dulles Intl

Mon 9/3

19:20-10:40

1 stop11h 20m

£531

BelfastWashington, D.C.

BHD - IAD

BHDIAD

Belfast City

Mon 23/2

06:30-16:05

1 stop14h 35m

Washington, D.C. Dulles Intl

Sun 1/3

12:24-16:50

2 stops23h 26m

£534

BelfastWashington, D.C.

BHD - DCA

BHDDCA

Belfast City

Thu 12/2

10:40-23:00

2 stops17h 20m

Washington, D.C. Reagan-National

Mon 16/2

06:23-09:05

2 stops21h 42m

£558

BelfastBaltimore

BHD - BWI

BHDBWI

Belfast City

Thu 12/2

15:05-18:45

1 stop32h 40m

Baltimore/Washington

Mon 16/2

18:04-18:35

2 stops19h 31m

£605

BelfastBaltimore

BFS - BWI

BFSBWI

Belfast Intl

Thu 12/3

06:30-23:59

2 stops21h 29m

Baltimore/Washington

Thu 19/3

20:40-21:05

3 stops20h 25m

£614

BelfastBaltimore

BHD - BWI

BHDBWI

Belfast City

Thu 5/3

06:35-17:04

2 stops15h 29m

Baltimore/Washington

Mon 9/3

19:54-11:30

2 stops35h 36m

£747

BelfastBaltimore

BFS - BWI

BFSBWI

Belfast Intl

Mon 9/2

08:35-10:27

3 stops30h 52m

Baltimore/Washington

Thu 12/2

11:30-22:20

2 stops29h 50m

£895

BelfastBaltimore

BFS - BWI

BFSBWI

Belfast Intl

Fri 13/3

06:30-00:50

3 stops46h 20m

£308

Flights are sorted by cheapest return flights first.

Deals found on 27/1

Showing 1-10 of 17 results
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2

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 25m. 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 Intl - Washington, D.C. Dulles Intl, Belfast Intl - Baltimore/Washington or Belfast City - Washington, D.C. Reagan-National 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

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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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