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Cheap flights from Belfast to Washington, D.C. from £241

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 14/10. Fares are subject to change and may not be available on all flights or dates of travel.
BHD — WAS
12 Oct — 19 Oct1
1 adult
1 adult, Economy

Cheap 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 12 September 2025.

Round-trip from

£465

One-way from

£241
6/10-13/10
  • 6/10-13/10
  • 4 total stops
  • 36h 40m total
  • Belfast to Washington, D.C.
Search Deals
14/10
  • 14/10
  • 3 total stops
  • 49h 45m total
  • Belfast to Washington, D.C.
Search Deals

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

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 12 September 2025.

Mon 6/1006:45BFS - BWI
2 stops15h 55mMultiple Airlines
Mon 13/1018:50BWI - BFS
2 stops20h 45mMultiple Airlines
Deal found 10/9£465
Thu 20/1106:35BHD - IAD
1 stop14h 00mAmerican Airlines
Mon 24/1114:16IAD - BHD
2 stops20h 49mAmerican Airlines
Deal found 11/9£495
Thu 4/1210:40BHD - DCA
2 stops16h 30mAmerican Airlines
Mon 8/1215:54DCA - BHD
2 stops13h 46mAmerican Airlines
Deal found 10/9£498
Mon 6/1006:30BHD - IAD
1 stop14h 05mDelta
Mon 13/1012:09IAD - BHD
2 stops23h 46mDelta
Deal found 10/9£500
Mon 6/1006:30BHD - BWI
2 stops15h 24mDelta
Mon 13/1017:39BWI - BHD
2 stops18h 16mDelta
Deal found 10/9£504
Mon 6/1006:40BHD - BWI
1 stop18h 05mAmerican Airlines
Mon 13/1019:45BWI - BHD
2 stops16h 45mAmerican Airlines
Deal found 10/9£512
Mon 6/1015:25BHD - IAD
2 stops32h 29mMultiple Airlines
Mon 13/1017:41IAD - BHD
2 stops14h 14mMultiple Airlines
Deal found 10/9£524
Mon 6/1006:40BHD - BWI
2 stops16h 50mMultiple Airlines
Mon 13/1021:35BWI - BHD
1 stop13h 05mMultiple Airlines
Deal found 10/9£551
Mon 27/1007:50BFS - IAD
3 stops35h 45mMultiple Airlines
Mon 3/1117:30IAD - BFS
2 stops22h 40mMultiple Airlines
Deal found 11/9£559
Mon 6/1013:50BHD - IAD
1 stop11h 25mBritish Airways
Mon 13/1017:41IAD - BHD
2 stops14h 14mBritish Airways
Deal found 10/9£560
Mon 6/1009:50BHD - BWI
1 stop14h 55mBritish Airways
Mon 13/1021:35BWI - BHD
1 stop13h 05mBritish Airways
Deal found 10/9£608
Sat 25/1006:30BHD - IAD
1 stop14h 05mKLM
Sat 1/1119:05IAD - BHD
1 stop21h 55mKLM
Deal found 10/9£680

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 12 September 2025.
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

BelfastBaltimore

BFS - BWI

BFSBWI

Belfast Intl

Mon 6/10

06:45-17:40

2 stops15h 55m

Baltimore/Washington

Mon 13/10

18:50-20:35

2 stops20h 45m

£465

BelfastWashington, D.C.

BHD - IAD

BHDIAD

Belfast City

Thu 20/11

15:05-19:55

1 stop33h 50m

Washington, D.C. Dulles Intl

Mon 24/11

18:20-10:40

1 stop11h 20m

£495

BelfastWashington, D.C.

BHD - DCA

BHDDCA

Belfast City

Thu 4/12

10:40-22:10

2 stops16h 30m

Washington, D.C. Reagan-National

Mon 8/12

15:54-10:40

2 stops13h 46m

£498

BelfastWashington, D.C.

BHD - IAD

BHDIAD

Belfast City

Mon 6/10

06:30-15:35

1 stop14h 05m

Washington, D.C. Dulles Intl

Mon 13/10

12:09-16:55

2 stops23h 46m

£500

BelfastBaltimore

BHD - BWI

BHDBWI

Belfast City

Mon 6/10

06:30-16:54

2 stops15h 24m

Baltimore/Washington

Mon 13/10

17:39-16:55

2 stops18h 16m

£504

BelfastBaltimore

BHD - BWI

BHDBWI

Belfast City

Mon 6/10

06:40-19:45

1 stop18h 05m

Baltimore/Washington

Mon 13/10

19:45-17:30

2 stops16h 45m

£512

BelfastWashington, D.C.

BHD - IAD

BHDIAD

Belfast City

Mon 6/10

15:25-18:54

2 stops32h 29m

Washington, D.C. Dulles Intl

Mon 13/10

17:41-12:55

2 stops14h 14m

£524

BelfastBaltimore

BHD - BWI

BHDBWI

Belfast City

Fri 6/3

11:30-00:19

2 stops17h 49m

Baltimore/Washington

Tue 10/3

21:35-14:50

1 stop13h 15m

£529

BelfastBaltimore

BHD - BWI

BHDBWI

Belfast City

Mon 6/10

06:40-18:30

2 stops16h 50m

Baltimore/Washington

Mon 13/10

21:35-15:40

1 stop13h 05m

£551

BelfastWashington, D.C.

BFS - IAD

BFSIAD

Belfast Intl

Mon 27/10

07:50-15:35

3 stops35h 45m

Washington, D.C. Dulles Intl

Mon 3/11

17:30-21:10

2 stops22h 40m

£559

Flights are sorted by cheapest return flights first.

Deals found on 10/9

Showing 1-10 of 17 results
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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.

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

Find hourly flight availability from Belfast 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 12 September 2025.

When flying from Belfast to Washington, D.C., the time of day you fly usually plays a role in the price. Save by searching for a flight at midday, which can drop the price by up to 18% versus a flight in the morning.

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 24m. Airlines will cover a distance of 3348 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 - Baltimore/Washington, Belfast City - Washington, D.C. Dulles Intl 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.

  • What is the cheapest month to book a flight from Belfast to Washington, D.C.?

    Currently, January is the cheapest month in which you can book a flight from Belfast to Washington, D.C. (average of £599). Flying from Belfast to Washington, D.C. in July is currently the most expensive (average of £947). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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
College Park
Tysons

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 City to Dulles Intl flights
Belfast City to Reagan-National flights
Belfast Intl 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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