$793 Find Cheap Flights from Washington, D.C. to Northern Ireland - Compare and Save

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Book Cheap Washington, D.C. to Northern Ireland Plane Tickets

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Washington, D.C. to Northern Ireland

Thu, Oct 29 - Thu, Nov 5
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8:40 pm - 7:10 pmIAD  Washington, D.C. Dulles Intl-BFS Belfast Intl
18h 30m2 stops Reykjavik Keflavik Intl Glasgow Intl
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7:20 am - 6:30 pmBFS  Belfast Intl-IAD Washington, D.C. Dulles Intl
16h 10m2 stops Glasgow Intl Reykjavik Keflavik Intl
$793Multiple Airlines
Thu, Oct 29 - Thu, Nov 5
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8:40 pm - 7:10 pmBWI  Baltimore/Washington-BFS Belfast Intl
18h 30m2 stops Reykjavik Keflavik Intl Glasgow Intl
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7:20 am - 6:40 pmBFS  Belfast Intl-BWI Baltimore/Washington
16h 20m2 stops Glasgow Intl Reykjavik Keflavik Intl
$793Multiple Airlines
Fri, Nov 13 - Wed, Nov 18
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7:40 pm - 9:55 pmBWI  Baltimore/Washington-BFS Belfast Intl
21h 15m2 stops Reykjavik Keflavik Intl Glasgow Intl
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9:10 pm - 6:40 pmBFS  Belfast Intl-BWI Baltimore/Washington
26h 30m3 stops London Luton Dublin Reykjavik Keflavik Intl
$797Multiple Airlines
Fri, Nov 13 - Wed, Nov 18
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7:40 pm - 8:40 pmBWI  Baltimore/Washington-BFS Belfast Intl
20h 00m2 stops Reykjavik Keflavik Intl Manchester
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6:25 am - 6:40 pmBFS  Belfast Intl-BWI Baltimore/Washington
17h 15m2 stops London Gatwick Reykjavik Keflavik Intl
$837Multiple Airlines
Wed, Oct 28 - Tue, Nov 3
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9:55 am - 8:20 pmIAD  Washington, D.C. Dulles Intl-BFS Belfast Intl
30h 25m2 stops Toronto Pearson Intl Manchester
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8:55 pm - 5:00 pmBFS  Belfast Intl-IAD Washington, D.C. Dulles Intl
25h 05m2 stops Manchester Zurich
$838Multiple Airlines
Fri, Nov 13 - Mon, Nov 16
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7:40 pm - 10:35 pmBWI  Baltimore/Washington-BFS Belfast Intl
21h 55m2 stops Reykjavik Keflavik Intl Manchester
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8:30 am - 6:40 pmBFS  Belfast Intl-BWI Baltimore/Washington
15h 10m2 stops London Gatwick Reykjavik Keflavik Intl
$847Multiple Airlines
Fri, Nov 13 - Wed, Nov 18
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7:40 pm - 5:20 pmBWI  Baltimore/Washington-BHD Belfast City
16h 40m2 stops Reykjavik Keflavik Intl Manchester
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7:25 am - 6:40 pmBHD  Belfast City-BWI Baltimore/Washington
16h 15m2 stops London Gatwick Reykjavik Keflavik Intl
$856Multiple Airlines
Fri, Dec 11 - Fri, Dec 18
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7:40 pm - 8:40 pmIAD  Washington, D.C. Dulles Intl-BFS Belfast Intl
20h 00m2 stops Reykjavik Keflavik Intl Manchester
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8:25 am - 6:30 pmBFS  Belfast Intl-IAD Washington, D.C. Dulles Intl
15h 05m2 stops Manchester Reykjavik Keflavik Intl
$857Multiple Airlines
Fri, Dec 11 - Fri, Dec 18
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7:40 pm - 8:40 pmBWI  Baltimore/Washington-BFS Belfast Intl
20h 00m2 stops Reykjavik Keflavik Intl Manchester
Multiple Airlines Logo
8:25 am - 6:40 pmBFS  Belfast Intl-BWI Baltimore/Washington
15h 15m2 stops Manchester Reykjavik Keflavik Intl
$859Multiple Airlines
Wed, Oct 28 - Tue, Nov 3
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4:00 pm - 4:15 pmDCA  Washington, D.C. Reagan-National-BFS Belfast Intl
20h 15m3 stops Montreal Pierre Elliott Trudeau Intl Brussels Bruxelles-National Manchester
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8:55 pm - 3:24 pmBFS  Belfast Intl-DCA Washington, D.C. Reagan-National
23h 29m3 stops Manchester Brussels Bruxelles-National Montreal Pierre Elliott Trudeau Intl
$868Multiple Airlines
Booking Insights

KAYAK's insights & trends for Washington, D.C. to Northern Ireland flights

Get data-powered insights and trends into flights from Washington, D.C. to Northern Ireland to help you find the cheapest flights, the best time to fly and much more.

Which airlines provide the cheapest flights from Washington, D.C. to Northern Ireland?

In the past 5 days, the cheapest round-trip tickets from Washington, D.C. to Northern Ireland were found on Delta ($893) and KLM ($893).

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Good to know

Cheapest flight

$793
Flight from Washington Dulles Airport to Belfast Intl Airport

FAQs - booking Northern Ireland flights

  • How does KAYAK find such low prices on flights from Washington, D.C. 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, D.C. to Northern Ireland.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Washington, D.C. to Northern Ireland?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Washington, D.C. to Northern Ireland is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Washington, D.C. to Northern Ireland?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Washington, D.C. to Northern Ireland with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington, D.C. 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 from Washington, D.C. to Northern Ireland up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Washington, D.C. to Northern Ireland

 
Need help choosing which airline to fly with from Washington, D.C. to Northern Ireland? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
6.7
British AirwaysOverall score based on 8221 reviews
7.7Crew
6.5Entertainment
6.8Comfort
6.4Food
7.0Boarding
Airline reviews

Horrible… I was downgraded without notice, had to sit in economy and given my back injury was in pain most of the journey. I expect to be reimbursed for this inconvenience and after my return flight home, I never plan to fly with British Airways again.

2.0 MediocreOlga, Sep 2025
Read more British Airways reviews

Horrible… I was downgraded without notice, had to sit in economy and given my back injury was in pain most of the journey. I expect to be reimbursed for this inconvenience and after my return flight home, I never plan to fly with British Airways again.

I like the crew, very welcoming. Food can be better. The seat arms don’t go up so. I could use the empty seat next to mine to relax better. 3hrs delay 😠

I enjoyed the comfort of Premium Economy. The Purser on London-Nairobi was a little testy, snappish in his tone. I understand stressed, tired, etc but his tone in addressing passengers I found wanting.

The flight was delayed twice and because of that, we missed our connecting flight. British Airways then attempted to put us on the last flight to Milan from London which would have kept us in the airport for 12 hours. We had to speak to several levels of bureaucracy until BA management let us fly on a flight that only kept us in the airport for two hours. If there was an earlier flight, why weren’t we put on that flight from the start? Unacceptable behavior from what was once my favorite carrier.

everything to do with KAYAK was terrible. Your customer facing departments are utterly useless, timewasting and unhelpful.

Nice flight, attentive crew, soft landing by the Pilot,, comfortable seat.

Service was very good. Because I use a cane, I was allowed to use Priority Boarding. Biggest problem was extremely limited leg room in Economy class seats. For airplane food, it was alright.

Great job notifying of 30 minute delay in departure. Fabulous job making up for the time and arriving as scheduled. Air travel is just no fun anymore with the extreme overcrowding, and someone needs to come up with an innovative plan for loading and unloading passengers (load all window seats first, middle seats second, aisle seats last?). Great job getting the luggage on the carousel in record time!

One frustration after another. No gate personnel until very close to departure. Boarding procedure was chaos. Plane was dirty from previous transatlantic flight. Entertainment system not operational. Gate change for connecting flight which required another round of security clearance, almost causing a missed flight. The final blow was lost baggage upon arrival.

Nothing. BA flight was late. Missed connection and lost luggage. A disaster.

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