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Cheap flights from Belfast to Washington, D.C. from £613

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/12. Fares are subject to change and may not be available on all flights or dates of travel.
BHD — WAS
4 Jan — 11 Jan1
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 5 December 2025.

Fri 12/1207:00BFS - IAD
3 stops40h 45mMultiple Airlines
Fri 9/122:30IAD - BFS
2 stops18h 30mMultiple Airlines
Deal found 3/12£613
Fri 12/1217:20BHD - IAD
3 stops30h 25mMultiple Airlines
Fri 9/122:30IAD - BHD
2 stops17h 20mMultiple Airlines
Deal found 3/12£851
Fri 12/1206:45BHD - IAD
1 stop13h 50mBritish Airways
Fri 9/118:20IAD - BHD
1 stop11h 10mBritish Airways
Deal found 3/12£1,072
Fri 12/1206:45BHD - BWI
1 stop17h 00mBritish Airways
Fri 9/114:46BWI - BHD
2 stops18h 29mBritish Airways
Deal found 3/12£1,097
Fri 12/1206:45BHD - DCA
2 stops18h 30mBritish Airways
Fri 9/117:45DCA - BHD
2 stops15h 30mBritish Airways
Deal found 3/12£1,131

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 5 December 2025.

Round-trip from

£533
American Airlines
  • American Airlines
  • 22/1-26/1
  • 4 total stops
  • 31h 14m 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 5 December 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

BelfastWashington, D.C.

BHD - IAD

BHDIAD

Belfast City

Thu 22/1

09:05-19:55

1 stop15h 50m

Washington, D.C. Dulles Intl

Mon 26/1

17:46-16:05

2 stops17h 19m

£726

BelfastWashington, D.C.

BHD - DCA

BHDDCA

Belfast City

Thu 22/1

10:40-23:59

2 stops18h 19m

Washington, D.C. Reagan-National

Mon 26/1

18:34-14:15

2 stops14h 41m

£731

BelfastWashington, D.C.

BHD - IAD

BHDIAD

Belfast City

Thu 29/1

09:05-15:35

1 stop11h 30m

Washington, D.C. Dulles Intl

Mon 2/2

13:08-10:40

2 stops16h 32m

£731

BelfastWashington, D.C.

BHD - IAD

BHDIAD

Belfast City

Thu 5/2

09:05-19:55

1 stop15h 50m

Washington, D.C. Dulles Intl

Mon 9/2

17:46-16:05

2 stops17h 19m

£731

BelfastBaltimore

BHD - BWI

BHDBWI

Belfast City

Thu 29/1

17:45-18:45

1 stop30h 00m

Baltimore/Washington

Mon 2/2

14:46-10:40

2 stops14h 54m

£737

BelfastWashington, D.C.

BHD - DCA

BHDDCA

Belfast City

Thu 5/3

11:05-21:29

2 stops15h 24m

Washington, D.C. Reagan-National

Mon 9/3

18:14-10:40

2 stops12h 26m

£738

BelfastBaltimore

BHD - BWI

BHDBWI

Belfast City

Thu 22/1

11:05-18:45

1 stop12h 40m

Baltimore/Washington

Sun 25/1

09:17-13:55

2 stops23h 38m

£766

Flights are sorted by cheapest return flights first.

Deals found on 2/12

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 5 December 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 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 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 50m. 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 City - Washington, D.C. Reagan-National, Belfast Intl - 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

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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 Dulles Intl flights
Belfast City to Reagan-National flights

Fly with Cheapflights

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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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