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Cheap flights from District of Columbia to Belfast 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 15/9. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — BHD
5 Sep — 12 Sep1
1 adult

Cheap 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 August 2025.

Round-trip from

£467

One-way from

£244

Popular in

June

Cheapest in

February

Average price

£457
British Airways
  • British Airways
  • 18/11-25/11
  • 2 total stops
  • 26h 05m total
  • District of Columbia to Belfast
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15/9
  • 15/9
  • 3 total stops
  • 49h 30m total
  • District of Columbia to Belfast
Search Deals
Highest demand for flights based on searches. 22% potential increase in price (£118 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease (£24 potential savings vs. average return price).
Search Deals
Average for round-trip flights in August 2025
Search Deals

Find flight deals from District of Columbia to Belfast

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 August 2025.

Tue 18/1121:45IAD - BHD
1 stop14h 00mBritish Airways
Mon 24/1111:30BHD - IAD
1 stop13h 25mBritish Airways
Deal found 31/8£467
Thu 13/1114:54DCA - BHD
2 stops14h 26mAmerican Airlines
Thu 20/1111:05BHD - DCA
2 stops15h 38mAmerican Airlines
Deal found 31/8£477
Thu 13/1119:40IAD - BHD
2 stops18h 55mMultiple Airlines
Thu 20/1107:25BHD - IAD
2 stops16h 05mMultiple Airlines
Deal found 31/8£499
Tue 14/1017:00IAD - BFS
2 stops21h 25mMultiple Airlines
Tue 21/1009:00BFS - IAD
3 stops35h 20mMultiple Airlines
Deal found 30/8£508
Wed 12/1118:05IAD - BHD
1 stop17h 45mVirgin Atlantic
Sun 16/1106:30BHD - IAD
1 stop14h 35mVirgin Atlantic
Deal found 29/8£523
Sat 6/917:25IAD - BHD
1 stop18h 30mMultiple Airlines
Sat 20/1206:30BHD - IAD
1 stop14h 35mMultiple Airlines
Deal found 30/8£523
Sat 6/918:15IAD - BHD
2 stops17h 40mDelta
Sat 20/1206:30BHD - IAD
1 stop14h 35mDelta
Deal found 31/8£527
Fri 12/917:25IAD - BHD
1 stop22h 50mDelta
Sat 20/906:30BHD - IAD
2 stops21h 47mDelta
Deal found 30/8£531
Wed 12/1112:11IAD - BHD
2 stops27h 49mDelta
Sun 16/1106:30BHD - IAD
2 stops21h 33mDelta
Deal found 29/8£534
Wed 8/1017:00DCA - BHD
2 stops18h 55mVirgin Atlantic
Sun 12/1006:30BHD - DCA
2 stops17h 29mVirgin Atlantic
Deal found 29/8£534
Thu 9/1022:20IAD - BFS
3 stops20h 10mMultiple Airlines
Thu 16/1007:10BFS - IAD
3 stops42h 40mMultiple Airlines
Deal found 31/8£545
Mon 29/917:50IAD - BHD
1 stop10h 00mBritish Airways
Mon 6/1009:50BHD - IAD
1 stop11h 05mBritish Airways
Deal found 30/8£548

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 August 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

Tue 18/11

18:20-10:30

1 stop11h 10m

Belfast City

Tue 25/11

10:00-19:55

1 stop14h 55m

£467

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Thu 13/11

18:20-10:20

1 stop11h 00m

Belfast City

Thu 20/11

09:05-19:55

1 stop15h 50m

£467

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Tue 14/10

22:45-15:20

1 stop11h 35m

Belfast City

Tue 21/10

09:35-17:35

1 stop13h 00m

£467

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Tue 18/11

21:45-16:45

1 stop14h 00m

Belfast City

Mon 24/11

11:30-19:55

1 stop13h 25m

£467

Washington, D.C.Belfast

DCA - BHD

DCABHD

Washington, D.C. Reagan-National

Thu 13/11

14:54-10:20

2 stops14h 26m

Belfast City

Thu 20/11

11:05-21:43

2 stops15h 38m

£477

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Thu 13/11

19:40-19:35

2 stops18h 55m

Belfast City

Thu 20/11

07:25-18:30

2 stops16h 05m

£499

Washington, D.C.Belfast

IAD - BFS

IADBFS

Washington, D.C. Dulles Intl

Tue 14/10

17:00-19:25

2 stops21h 25m

Belfast Intl

Tue 21/10

09:00-15:20

3 stops35h 20m

£508

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Wed 12/11

18:05-16:50

1 stop17h 45m

Belfast City

Sun 16/11

06:30-16:05

1 stop14h 35m

£523

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Sun 28/9

17:25-21:15

1 stop22h 50m

Belfast City

Sun 5/10

06:30-15:35

1 stop14h 05m

£523

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Fri 12/9

17:25-16:55

1 stop18h 30m

Belfast City

Sat 20/9

06:30-15:35

1 stop14h 05m

£523

Flights are sorted by cheapest return flights first.

Deals found on 31/8

Showing 1-10 of 27 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 10m. Fly via British Airways, American Airlines, or Virgin Atlantic 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. Dulles Intl - Belfast City or Washington, D.C. Reagan-National - Belfast Intl 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.

  • What is the cheapest month to book a flight from District of Columbia to Belfast?

    Currently, January is the cheapest month in which you can book a flight from District of Columbia to Belfast (average of £67). Flying from District of Columbia to Belfast in July is currently the most expensive (average of £90). 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

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