Find cheap flights from Washington Dulles Airport to Northern Ireland from £466
This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Dulles Intl to Northern Ireland departing on 2/7. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
Return
1 adult
Economy
0 bags
Wed 5/6
Wed 12/6
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In the last 7 days, travellers have searched 42,573,820 times on KAYAK, and here's why:
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Best time to beat the crowds (26% less expensive on average)
Most popular time to fly (6% more expensive on average)
FAQs - booking Northern Ireland flights
How does KAYAK find such low prices on flights from Washington Dulles Airport to Northern Ireland?
KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Washington Dulles Airport to Northern Ireland.
How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Washington Dulles Airport to Northern Ireland?
KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Northern Ireland from Washington Dulles Airport is likely to change within 7 days, so travellers know whether to wait or book now.
What is the Hacker Fare option on flights from Washington Dulles Airport to Northern Ireland?
Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to Northern Ireland with an airline and back to Washington Dulles Airport with another airline.
What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington Dulles Airport to Northern Ireland?
Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Northern Ireland from Washington Dulles Airport up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.
See more FAQs
Top tips for finding a cheap flight from Washington Dulles Airport to Northern Ireland
Morning departure is around 12% more expensive than an evening flight, on average*.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days
Book cheap flights from Washington, D.C. to Northern Ireland
Cheapest flights to Northern Ireland from Washington, D.C. found in 2024
Recent return flight deals
24/9Tue
1 stopBritish Airways
11h 35mIAD-BHD
30/9Mon
1 stopBritish Airways
14h 00mBHD-IAD
£487
24/9Tue
2 stopsAmerican Airlines
16h 49mIAD-BHD
30/9Mon
1 stopAmerican Airlines
11h 40mBHD-IAD
£489
24/9Tue
2 stopsAmerican Airlines
20h 15mIAD-BHD
30/9Mon
2 stopsAmerican Airlines
18h 09mBHD-IAD
£496
13/10Sun
2 stopsAmerican Airlines
14h 29mIAD-BHD
27/10Sun
2 stopsAmerican Airlines
19h 44mBHD-IAD
£497
13/10Sun
2 stopsDelta
22h 35mIAD-BHD
19/10Sat
1 stopDelta
27h 15mBHD-IAD
£536
11/8Sun
2 stopsDelta
23h 17mIAD-BHD
18/8Sun
2 stopsDelta
30h 33mBHD-IAD
£567
13/9Fri
2 stopsLufthansa
30h 05mIAD-BHD
20/9Fri
2 stopsLufthansa
32h 50mBHD-IAD
£590
24/9Tue
2 stops
19h 40mIAD-BFS
30/9Mon
3 stops
35h 47mBFS-IAD
£631
24/9Tue
2 stops
19h 40mIAD-BFS
30/9Mon
2 stops
15h 50mBFS-IAD
£638
19/8Mon
2 stopsLufthansa
16h 15mIAD-BHD
23/8Fri
1 stopLufthansa
29h 30mBHD-IAD
£711
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Recent one-way flight deals
2/7Tue
2 stops
37h 05mIAD-BHD
£466
2/7Tue
1 stopDelta
18h 00mIAD-BHD
£587
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Washington Dulles Airport - Northern Ireland Flights