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Cheap flights from Washington, D.C. Reagan-National Airport to Northern Ireland from £388

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 11/9. Fares are subject to change and may not be available on all flights or dates of travel.
DCA — BFS
3 Sep — 10 Sep1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Reagan-National to Northern Ireland

Enter your travel dates to find the best prices.

Cheapest flights from Reagan-National to Northern Ireland
Explore the most affordable flight options available from Reagan-National to Northern Ireland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 4 August 2026.

Mon 14/906:59
DCA
-
BFS
2 stops28h 16m
Multiple Airlines
Mon 21/908:40
BFS
-
DCA
2 stops18h 54m
Multiple Airlines
Deal found 31/7£653
Wed 4/1114:56
DCA
-
BHD
2 stops14h 19m
British Airways
Wed 18/1109:15
BHD
-
DCA
2 stops15h 04m
British Airways
Deal found 30/7£714
Mon 16/1114:56
DCA
-
BHD
2 stops13h 09m
British Airways
Tue 24/1108:45
BHD
-
DCA
2 stops15h 30m
British Airways
Deal found 29/7£736
Mon 21/906:10
DCA
-
BHD
2 stops22h 10m
KLM
Mon 5/1017:30
BHD
-
DCA
2 stops28h 07m
KLM
Deal found 2/8£765
Thu 19/1114:56
DCA
-
BHD
2 stops14h 24m
British Airways
Wed 25/1106:35
BHD
-
DCA
2 stops15h 44m
British Airways
Deal found 30/7£767
Sat 12/912:55
DCA
-
BFS
3 stops15h 25m
Multiple Airlines
Sat 19/908:30
BFS
-
DCA
3 stops18h 20m
Multiple Airlines
Deal found 30/7£774
Wed 30/915:06
DCA
-
BHD
2 stops15h 54m
British Airways
Tue 6/1009:40
BHD
-
DCA
2 stops16h 50m
British Airways
Deal found 31/7£776
Tue 1/912:40
DCA
-
BFS
3 stops21h 35m
Multiple Airlines
Mon 7/921:55
BFS
-
DCA
3 stops25h 20m
Multiple Airlines
Deal found 2/8£777
Mon 28/915:06
DCA
-
BHD
2 stops16h 49m
British Airways
Wed 7/1010:05
BHD
-
DCA
2 stops14h 00m
British Airways
Deal found 3/8£782
Mon 21/915:58
DCA
-
BHD
2 stops15h 57m
British Airways
Tue 6/1009:40
BHD
-
DCA
2 stops14h 25m
British Airways
Deal found 2/8£786
Wed 7/1017:55
DCA
-
BHD
2 stops14h 40m
British Airways
Mon 12/1009:40
BHD
-
DCA
2 stops16h 19m
British Airways
Deal found 1/8£795
Wed 19/818:23
DCA
-
BHD
2 stops14h 12m
British Airways
Tue 25/813:45
BHD
-
DCA
2 stops14h 48m
British Airways
Deal found 1/8£818

Find flight deals from Reagan-National to Northern Ireland

Keep the following information in mind while searching for Reagan-National to Northern Ireland flight deals. Data was last updated 4 August 2026.

Round-trip from

£653

One-way from

£388
14/9-21/9
  • 14/9-21/9
  • 4 total stops
  • 47h 10m total
  • Washington, D.C. to Northern Ireland
Search Deals
Delta
  • Delta
  • 11/9
  • 2 total stops
  • 18h 50m total
  • Washington, D.C. to Northern Ireland
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Reagan-National to Northern Ireland 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 4 August 2026.
Use the filters below to find and compare flights from Washington, D.C. Reagan-National Airport to Northern Ireland that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

Washington, D.C.Belfast

DCA - BFS

DCABFS

Washington, D.C. Reagan-National

Mon 14/9

06:59-16:15

2 stops28h 16m

Belfast Intl

Mon 21/9

08:40-22:34

2 stops18h 54m

£653

Washington, D.C.Belfast

DCA - BHD

DCABHD

Washington, D.C. Reagan-National

Wed 4/11

14:56-10:15

2 stops14h 19m

Belfast City

Wed 18/11

09:15-19:19

2 stops15h 04m

£714
Fastest return journey

Washington, D.C.Belfast

DCA - BHD

DCABHD

Washington, D.C. Reagan-National

Mon 16/11

14:56-09:05

2 stops13h 09m

Belfast City

Tue 24/11

08:45-19:15

2 stops15h 30m

£736

Washington, D.C.Belfast

DCA - BFS

DCABFS

Washington, D.C. Reagan-National

Sat 12/9

12:55-09:20

3 stops15h 25m

Belfast Intl

Sat 19/9

08:30-21:50

3 stops18h 20m

£774

Washington, D.C.Belfast

DCA - BHD

DCABHD

Washington, D.C. Reagan-National

Wed 30/9

15:06-12:00

2 stops15h 54m

Belfast City

Tue 6/10

09:40-21:30

2 stops16h 50m

£776

Washington, D.C.Belfast

DCA - BFS

DCABFS

Washington, D.C. Reagan-National

Tue 1/9

12:40-15:15

3 stops21h 35m

Belfast Intl

Mon 7/9

21:55-18:15

3 stops25h 20m

£777

Washington, D.C.Belfast

DCA - BHD

DCABHD

Washington, D.C. Reagan-National

Mon 21/9

15:58-12:55

2 stops15h 57m

Belfast City

Tue 6/10

09:40-19:05

2 stops14h 25m

£786

Washington, D.C.Belfast

DCA - BHD

DCABHD

Washington, D.C. Reagan-National

Fri 28/8

16:20-20:30

2 stops23h 10m

Belfast City

Fri 4/9

07:00-18:12

3 stops40h 12m

£819

Washington, D.C.Belfast

DCA - BHD

DCABHD

Washington, D.C. Reagan-National

Fri 11/9

11:56-08:50

2 stops15h 54m

Belfast City

Wed 16/9

11:35-23:10

2 stops16h 35m

£832

Washington, D.C.Belfast

DCA - BHD

DCABHD

Washington, D.C. Reagan-National

Fri 11/9

17:05-16:55

2 stops18h 50m

Belfast City

Wed 16/9

09:50-23:35

2 stops18h 45m

£833

Flights are sorted by cheapest return flights first.

Deals found on 1/8

Showing 1-10 of 16 resultsSorted by cheapest first
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Best time to book a flight from Reagan-National to Northern Ireland

Have a flexible travel schedule? Discover the best time to fly to Northern Ireland 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 Northern Ireland

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 Northern Ireland. 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 Northern Ireland?

    Airlines like British Airways fly from Washington, D.C. Reagan-National Airport to Northern Ireland in about 14h 19m. 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 Northern Ireland is about 3378 mi.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Reagan-National to Northern Ireland 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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