Cheap flights from Northern Ireland to District of Columbia from £605
This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/12. Fares are subject to change and may not be available on all flights or dates of travel.
Cheap flight deals from Northern Ireland to District of Columbia
Keep the following information in mind while searching for Northern Ireland to District of Columbia flight deals. Data was last updated 28 October 2025.
Find flight deals from Northern Ireland to District of Columbia
Cheapest flights from Northern Ireland to District of ColumbiaExplore the most affordable flight options available from Northern Ireland to District of Columbia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 28 October 2025.
Explore the most affordable flight options available from Northern Ireland to District of Columbia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 28 October 2025.
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Use the filters below to find and compare flights from Northern Ireland to District of Columbia that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
BelfastWashington, D.C.
BFS - IAD
BFSIAD
Belfast Intl
Wed 10/12
08:20-19:30
2 stops16h 10m
Washington, D.C. Dulles Intl
Wed 17/12
17:05-16:10
2 stops18h 05m
BelfastWashington, D.C.
BHD - DCA
BHDDCA
Belfast City
Thu 4/12
06:35-20:00
2 stops18h 25m
Washington, D.C. Reagan-National
Mon 8/12
13:59-16:05
2 stops21h 06m
BelfastWashington, D.C.
BHD - IAD
BHDIAD
Belfast City
Thu 5/3
06:35-15:35
1 stop14h 00m
Washington, D.C. Dulles Intl
Mon 9/3
10:48-10:40
2 stops19h 52m
BelfastWashington, D.C.
BHD - IAD
BHDIAD
Belfast City
Thu 20/11
06:35-15:35
1 stop14h 00m
Washington, D.C. Dulles Intl
Mon 24/11
21:45-14:15
1 stop11h 30m
BelfastWashington, D.C.
BHD - DCA
BHDDCA
Belfast City
Wed 1/4
06:30-19:20
2 stops17h 50m
Washington, D.C. Reagan-National
Sun 5/4
17:00-16:55
2 stops18h 55m
Best time to book a flight from Northern Ireland to District of Columbia
Have a flexible travel schedule? Discover the best time to fly to District of Columbia from Northern Ireland with our price prediction graph.
Cheapflights Insights
Everything you need to know about your flight from Northern Ireland to District of Columbia
What is the cheapest time of day to fly from NIR to DC?
Find hourly flight availability from Northern Ireland to District of Columbia. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 28 October 2025.
A simple way to save on the total cost of your ticket is to fly from Northern Ireland to District of Columbia in the evening. If you’re flexible enough to do this you can expect to save up to 36% on your trip compared to booking a flight in the afternoon.
Related info for your journey
Find useful and relevant information for your journey from Northern Ireland to District of Columbia. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for Northern Ireland to District of Columbia
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How does Cheapflights help users find flights from Northern Ireland to District of Columbia?
Cheapflights makes it easy to find Northern Ireland to District of Columbia flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.
Why should you use Cheapflights to find cheap flight tickets from Northern Ireland to District of Columbia?
It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Northern Ireland to District of Columbia.
Can Cheapflights find flights from Northern Ireland to District of Columbia with no change fees?
Certainly. Search results for flights to District of Columbia from Northern Ireland 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 Northern Ireland to District of Columbia become cheaper?
Yes, Cheapflights offers price alerts on Northern Ireland to District of Columbia 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.