Cheap flights from District of Columbia to Northern Ireland from £255
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 15/4. Fares are subject to change and may not be available on all flights or dates of travel.
Find flight deals from District of Columbia to Northern Ireland
Cheapest flights from District of Columbia to Northern IrelandExplore the most affordable flight options available from District of Columbia to Northern Ireland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 October 2025.
Explore the most affordable flight options available from District of Columbia to Northern Ireland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 October 2025.
Cheap flight deals from District of Columbia to Northern Ireland
Keep the following information in mind while searching for District of Columbia to Northern Ireland flight deals. Data was last updated 17 October 2025.
Cheapflights Fare Finder
Use the filters below to find and compare flights from District of Columbia to Northern Ireland that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
Washington, D.C.Belfast
IAD - BFS
IADBFS
Washington, D.C. Dulles Intl
Fri 14/11
19:40-22:00
2 stops21h 20m
Belfast Intl
Fri 21/11
08:05-18:30
2 stops15h 25m
Washington, D.C.Belfast
IAD - BHD
IADBHD
Washington, D.C. Dulles Intl
Fri 14/11
18:05-16:50
1 stop17h 45m
Belfast City
Fri 21/11
06:30-16:05
1 stop14h 35m
Washington, D.C.Belfast
IAD - BHD
IADBHD
Washington, D.C. Dulles Intl
Wed 26/11
18:20-09:10
1 stop9h 50m
Belfast City
Wed 3/12
06:35-15:35
1 stop14h 00m
Washington, D.C.Belfast
IAD - BHD
IADBHD
Washington, D.C. Dulles Intl
Thu 5/3
18:20-10:20
1 stop11h 00m
Belfast City
Thu 12/3
06:35-20:55
1 stop18h 20m
Washington, D.C.Belfast
IAD - BHD
IADBHD
Washington, D.C. Dulles Intl
Sun 8/2
21:45-13:55
1 stop11h 10m
Belfast City
Sun 15/2
06:30-15:35
1 stop14h 05m
Washington, D.C.Belfast
IAD - BHD
IADBHD
Washington, D.C. Dulles Intl
Sun 8/2
13:08-10:20
2 stops16h 12m
Belfast City
Sun 15/2
06:30-19:55
1 stop18h 25m
Washington, D.C.Belfast
IAD - BHD
IADBHD
Washington, D.C. Dulles Intl
Sun 16/11
13:58-10:20
2 stops15h 22m
Belfast City
Sun 23/11
06:30-19:20
2 stops17h 50m
Washington, D.C.Belfast
DCA - BHD
DCABHD
Washington, D.C. Reagan-National
Sun 16/11
15:44-10:20
2 stops13h 36m
Belfast City
Sun 23/11
06:30-16:54
2 stops15h 24m
Washington, D.C.Belfast
IAD - BHD
IADBHD
Washington, D.C. Dulles Intl
Wed 12/11
18:20-09:10
1 stop9h 50m
Belfast City
Wed 19/11
17:40-15:35
1 stop26h 55m
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
17:20-16:05
1 stop27h 45m
Best time to book a flight from District of Columbia to Northern Ireland
Have a flexible travel schedule? Discover the best time to fly to Northern Ireland from District of Columbia with our price prediction graph.
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How does Cheapflights help users find flights from District of Columbia to Northern Ireland?
When you search for this flight from District of Columbia to Northern Ireland, 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.
Why should you use Cheapflights to find cheap flight tickets from District of Columbia to Northern Ireland?
Cheapflights simply makes it quick and affordable to book flights from District of Columbia to Northern Ireland by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.
Can Cheapflights find flights from District of Columbia to Northern Ireland with no change fees?
Certainly. Search results for flights to Northern Ireland from District of Columbia shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.
Can Cheapflights notify me if prices for flights from District of Columbia to Northern Ireland become cheaper?
Yes, Cheapflights offers price alerts on District of Columbia to Northern Ireland flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.