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Cheap flights from District of Columbia to Belfast from £181

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 12/1. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — BHD
30 Jan — 6 Feb1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from District of Columbia to Belfast

Enter your travel dates to find the best prices.

Cheapest flights from District of Columbia to Belfast
Explore the most affordable flight options available from District of Columbia to Belfast. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 31 December 2025.

Tue 30/1218:26DCA - BHD
2 stops15h 24mBritish Airways
Sun 4/120:25BHD - DCA
2 stops26h 09mBritish Airways
Deal found 29/12£1,021
Tue 30/1221:45IAD - BHD
1 stop12h 05mBritish Airways
Sun 4/120:25BHD - IAD
2 stops32h 39mBritish Airways
Deal found 29/12£1,023
Wed 31/1213:57IAD - BHD
2 stops19h 18mBritish Airways
Sun 4/115:10BHD - IAD
2 stops37h 54mBritish Airways
Deal found 29/12£1,026
Wed 31/1209:45IAD - BHD
3 stops30h 10mMultiple Airlines
Sun 4/114:15BHD - IAD
2 stops29h 25mMultiple Airlines
Deal found 29/12£1,315
Tue 30/1218:00IAD - BHD
2 stops17h 50mMultiple Airlines
Sun 4/118:00BHD - IAD
3 stops31h 54mMultiple Airlines
Deal found 29/12£1,318

Find flight deals from District of Columbia to Belfast

Keep the following information in mind while searching for District of Columbia to Belfast flight deals. Data was last updated 31 December 2025.

Round-trip from

£437

One-way from

£181
27/4-6/5
  • 27/4-6/5
  • 4 total stops
  • 41h 00m total
  • District of Columbia to Belfast
Search Deals
12/1
  • 12/1
  • 3 total stops
  • 57h 20m total
  • District of Columbia to Belfast
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from District of Columbia to Belfast 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 31 December 2025.
Use the filters below to find and compare flights from District of Columbia to Belfast that are best for you.

Fly from

District of Columbia

Fly to

Belfast

Route

Depart

Return

Price

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Mon 16/3

19:20-10:40

1 stop11h 20m

Belfast City

Sun 22/3

20:25-16:35

1 stop24h 10m

£461

Washington, D.C.Belfast

IAD - BFS

IADBFS

Washington, D.C. Dulles Intl

Wed 28/1

19:40-19:20

2 stops18h 40m

Belfast Intl

Wed 4/2

07:20-18:30

2 stops16h 10m

£469

Washington, D.C.Belfast

DCA - BHD

DCABHD

Washington, D.C. Reagan-National

Wed 28/1

13:35-09:10

2 stops14h 35m

Belfast City

Wed 4/2

11:25-22:03

2 stops15h 38m

£478

Washington, D.C.Belfast

DCA - BHD

DCABHD

Washington, D.C. Reagan-National

Mon 16/3

13:48-10:40

2 stops16h 52m

Belfast City

Sun 22/3

15:10-09:59

2 stops22h 49m

£478

Washington, D.C.Belfast

DCA - BHD

DCABHD

Washington, D.C. Reagan-National

Mon 26/1

17:55-14:15

2 stops15h 20m

Belfast City

Mon 2/2

11:30-22:03

2 stops15h 33m

£478

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Wed 4/3

18:20-10:15

1 stop10h 55m

Belfast City

Sun 8/3

15:10-16:35

1 stop29h 25m

£480

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Thu 5/3

12:24-16:50

2 stops23h 26m

Belfast City

Thu 12/3

06:30-17:05

1 stop14h 35m

£498

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Mon 16/3

19:59-16:40

2 stops16h 41m

Belfast City

Sun 22/3

17:20-17:05

1 stop27h 45m

£498

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Mon 26/1

19:30-16:50

2 stops16h 20m

Belfast City

Mon 2/2

17:20-16:05

1 stop27h 45m

£499

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Wed 28/1

12:40-16:50

2 stops23h 10m

Belfast City

Wed 4/2

17:20-16:05

1 stop27h 45m

£499

Flights are sorted by cheapest return flights first.

Deals found on 30/12

Showing 1-10 of 28 results
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Best time to book a flight from District of Columbia to Belfast

Have a flexible travel schedule? Discover the best time to fly to Belfast from District of Columbia 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 District of Columbia to Belfast
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 District of Columbia to Belfast. 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 District of Columbia to Belfast?

    There are many flights that can get you from District of Columbia to Belfast in 11h 20m. Fly via British Airways, Delta, or KLM to get the fastest option. The distance between District of Columbia and Belfast is about 3390 mi. This flight may include one or multiple stops.

  • What are the most popular routes from District of Columbia to Belfast?

    Most travelers choose Washington, D.C. Dulles Intl - Belfast Intl, Washington, D.C. Reagan-National - Belfast Intl or Washington, D.C. Reagan-National - Belfast City when deciding on the best route from District of Columbia to Belfast.

  • Can I find deals for flights from District of Columbia to Belfast that include hotel bookings?

    Yes. In addition to deals on District of Columbia to Belfast flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from District of Columbia to Belfast?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from District of Columbia to Belfast.

  • Can I find deals for business class flights from District of Columbia to Belfast?

    Yes. Cheapflights offers flight deals from District of Columbia to Belfast 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

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How does Cheapflights help users find flights from District of Columbia to Belfast?

When you search for this flight from District of Columbia to Belfast, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

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Can Cheapflights find flights from District of Columbia to Belfast with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from District of Columbia to Belfast, users can toggle the no change fees filter when performing a flight search.

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