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Cheap flights from Washington, D.C. Reagan-National Airport to Belfast from £337

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 14/1. Fares are subject to change and may not be available on all flights or dates of travel.
DCA — BHD
1 Jan — 8 Jan1
1 adult
1 adult, Economy, 0 bags

Find flight deals from Reagan-National to Belfast

Enter your travel dates to find the best prices.

Cheapest flights from Reagan-National to Belfast
Explore the most affordable flight options available from Reagan-National to Belfast. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 2 December 2025.

Mon 1/1219:35DCA - BHD
2 stops20h 25mDelta
Mon 8/1206:30BHD - DCA
2 stops15h 06mDelta
Deal found 30/11£505
Fri 5/1217:02DCA - BHD
2 stops18h 48mDelta
Wed 10/1206:30BHD - DCA
2 stops15h 06mDelta
Deal found 30/11£595
Sat 6/1219:55DCA - BHD
2 stops33h 25mBritish Airways
Thu 11/1206:35BHD - DCA
2 stops16h 08mBritish Airways
Deal found 30/11£735
Sat 6/1214:54DCA - BHD
2 stops13h 16mAmerican Airlines
Thu 11/1210:40BHD - DCA
2 stops15h 50mAmerican Airlines
Deal found 30/11£740
Fri 5/1217:31DCA - BHD
2 stops18h 19mDelta
Fri 12/1206:30BHD - DCA
2 stops15h 35mDelta
Deal found 30/11£754
Sun 7/1217:31DCA - BHD
2 stops18h 19mDelta
Wed 10/1206:30BHD - DCA
2 stops15h 06mDelta
Deal found 30/11£757
Thu 25/1213:44DCA - BHD
2 stops15h 36mBritish Airways
Wed 31/1206:35BHD - DCA
2 stops19h 55mBritish Airways
Deal found 30/11£942
Mon 29/1213:44DCA - BHD
2 stops15h 56mBritish Airways
Sat 3/106:35BHD - DCA
2 stops15h 00mBritish Airways
Deal found 30/11£1,092
Sat 20/1217:41DCA - BHD
2 stops38h 49mBritish Airways
Sun 4/120:25BHD - DCA
2 stops27h 15mBritish Airways
Deal found 1/12£1,587
Thu 25/1211:05DCA - BHD
2 stops21h 30mMultiple Airlines
Wed 31/1217:20BHD - DCA
3 stops27h 11mMultiple Airlines
Deal found 30/11£1,681
Thu 18/1206:00DCA - BHD
2 stops20h 30mBritish Airways
Fri 2/114:50BHD - DCA
2 stops24h 20mBritish Airways
Deal found 1/12£1,972
Sat 20/1206:59DCA - BHD
3 stops26h 26mMultiple Airlines
Sun 4/107:25BHD - DCA
2 stops31h 56mMultiple Airlines
Deal found 1/12£2,122

Cheap flight deals from Reagan-National to Belfast

Discover tips and strategies to find the most affordable flight options for your journey from Reagan-National (DCA) to Belfast (BF1). 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 2 December 2025.

Round-trip from

£433

One-way from

£337

Popular in

June

Cheapest in

February

Average price

£522
British Airways
  • British Airways
  • 21/1-28/1
  • 4 total stops
  • 32h 14m total
  • Washington, D.C. to Belfast
Search Deals
British Airways
  • British Airways
  • 14/1
  • 2 total stops
  • 12h 40m total
  • Washington, D.C. to Belfast
Search Deals
Highest demand for flights based on searches. 19% potential increase in price (£112 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease (£26 potential savings vs. average return price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Reagan-National 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 2 December 2025.
Use the filters below to find and compare flights from Washington, D.C. Reagan-National Airport to Belfast that are best for you.

Fly from

Reagan-National

Fly to

Belfast

Route

Depart

Return

Price

Washington, D.C.Belfast

DCA - BHD

DCABHD

Washington, D.C. Reagan-National

Wed 21/1

13:35-10:15

2 stops15h 40m

Belfast City

Wed 28/1

12:25-23:59

2 stops16h 34m

£433

Washington, D.C.Belfast

DCA - BHD

DCABHD

Washington, D.C. Reagan-National

Sun 1/3

13:54-10:20

2 stops15h 26m

Belfast City

Sun 8/3

09:10-20:48

2 stops15h 38m

£460

Washington, D.C.Belfast

DCA - BHD

DCABHD

Washington, D.C. Reagan-National

Thu 19/3

16:23-10:20

2 stops13h 57m

Belfast City

Thu 2/4

16:20-07:44

2 stops20h 24m

£472

Washington, D.C.Belfast

DCA - BHD

DCABHD

Washington, D.C. Reagan-National

Mon 16/3

18:14-14:15

2 stops16h 01m

Belfast City

Sun 22/3

09:10-20:48

2 stops15h 38m

£477

Washington, D.C.Belfast

DCA - BHD

DCABHD

Washington, D.C. Reagan-National

Mon 2/3

16:35-10:40

2 stops13h 05m

Belfast City

Mon 9/3

06:35-18:48

2 stops16h 13m

£477

Washington, D.C.Belfast

DCA - BHD

DCABHD

Washington, D.C. Reagan-National

Sun 1/3

17:59-21:00

2 stops22h 01m

Belfast City

Wed 11/3

06:30-17:49

2 stops15h 19m

£493

Washington, D.C.Belfast

DCA - BHD

DCABHD

Washington, D.C. Reagan-National

Mon 2/3

17:00-16:50

2 stops18h 50m

Belfast City

Tue 10/3

06:30-19:40

2 stops17h 10m

£493

Washington, D.C.Belfast

DCA - BHD

DCABHD

Washington, D.C. Reagan-National

Sun 1/3

17:59-21:00

2 stops22h 01m

Belfast City

Tue 10/3

06:30-18:33

2 stops16h 03m

£493

Washington, D.C.Belfast

DCA - BHD

DCABHD

Washington, D.C. Reagan-National

Tue 3/3

15:40-16:50

2 stops20h 10m

Belfast City

Tue 10/3

06:30-19:40

2 stops17h 10m

£493

Washington, D.C.Belfast

DCA - BHD

DCABHD

Washington, D.C. Reagan-National

Wed 4/3

17:59-21:00

2 stops22h 01m

Belfast City

Wed 11/3

06:30-17:49

2 stops15h 19m

£493

Flights are sorted by cheapest return flights first.

Deals found on 29/11

Showing 1-10 of 15 results
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Best time to book a flight from Reagan-National to Belfast

Have a flexible travel schedule? Discover the best time to fly to Belfast from Reagan-National 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 Washington, D.C. Reagan-National Airport 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 Reagan-National 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 Washington, D.C. Reagan-National Airport to Belfast?

    Airlines like British Airways fly from Washington, D.C. Reagan-National Airport to Belfast in about 15h 40m. The time it takes to get you to your destination can typically vary by up to . The distance from Washington, D.C. Reagan-National Airport to Belfast is about 3378 mi.

  • Can I find deals for flights from Reagan-National to Belfast that include hotel bookings?

    Yes. In addition to deals on Reagan-National to Belfast flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Reagan-National to Belfast?

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

  • Can I find deals for business class flights from Reagan-National to Belfast?

    Yes. Cheapflights offers flight deals from Reagan-National 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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Londonderry car hire

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