$540 Find Cheap Flights from Washington, D.C. to Northern Ireland

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Washington, D.C. to Northern Ireland departing on 9/16. 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.
1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to Northern Ireland

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to Northern Ireland, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to Northern Ireland, as well as popular online travel agencies
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Cheap Flights from Washington, D.C. to Northern Ireland

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Belfast
Belfast2 stops$540
Belfast
Belfast2 stops$540

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

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Washington, D.C. to Northern Ireland that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
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

Tue, Sep 16 - Mon, Sep 22
 Logo
6:50 pm - 11:10 pmBWI-BFS
23h 20m2 stops
 Logo
6:45 am - 5:40 pmBFS-BWI
15h 55m2 stops
Sat, Sep 13 - Sat, Sep 20
 Logo
6:50 pm - 11:05 pmBWI-BFS
23h 15m2 stops
 Logo
6:55 am - 5:40 pmBFS-BWI
15h 45m2 stops
Tue, Sep 2 - Fri, Sep 12
British Airways Logo
7:25 pm - 10:35 amIAD-BHD
10h 10m1 stop
British Airways Logo
8:05 pm - 3:00 pmBHD-IAD
23h 55m2 stops
$619British Airways
Find Deal
Tue, Oct 7 - Sun, Oct 12
British Airways Logo
7:25 pm - 1:00 pmIAD-BHD
12h 35m1 stop
British Airways Logo
6:50 am - 8:20 pmBHD-IAD
18h 30m1 stop
$625British Airways
Find Deal
Mon, Sep 1 - Mon, Sep 15
Delta Logo
5:25 pm - 9:15 pmIAD-BHD
22h 50m1 stop
Delta Logo
6:30 am - 3:35 pmBHD-IAD
14h 05m1 stop
$707Delta
Find Deal
Sun, Aug 17 - Sun, Aug 24
Delta Logo
8:23 pm - 9:15 pmIAD-BHD
19h 52m2 stops
Delta Logo
6:30 am - 3:35 pmBHD-IAD
14h 05m1 stop
$710Delta
Find Deal
Wed, Oct 8 - Sun, Oct 12
Virgin Atlantic Logo
5:00 pm - 9:15 pmDCA-BHD
23h 15m2 stops
Virgin Atlantic Logo
6:30 am - 10:06 amBHD-DCA
32h 36m2 stops
$721Virgin Atlantic
Find Deal
Wed, Oct 8 - Sun, Oct 12
Virgin Atlantic Logo
5:00 pm - 9:15 pmDCA-BHD
23h 15m2 stops
Virgin Atlantic Logo
6:30 am - 8:05 amBHD-DCA
30h 35m2 stops
$723Virgin Atlantic
Find Deal
Wed, Nov 12 - Sun, Nov 16
KLM Logo
11:00 am - 9:00 pmIAD-BHD
29h 00m2 stops
KLM Logo
6:30 am - 4:05 pmBHD-IAD
14h 35m1 stop
$765KLM
Find Deal
Wed, Nov 12 - Sun, Nov 16
KLM Logo
11:00 am - 4:50 pmIAD-BHD
24h 50m2 stops
KLM Logo
5:20 pm - 4:31 pmBHD-IAD
28h 11m2 stops
$775KLM
Find Deal
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.

What is the cheapest month to fly from Washington, D.C. to Northern Ireland?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Washington, D.C. to Northern Ireland, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Washington, D.C. to Northern Ireland is February, when tickets cost $618 (return) on average. On the other hand, the most expensive months are June and July, when the average cost of round-trip tickets is $1,232 and $1,023 respectively.


Good to know

Low seasonOctober
Cheapest flight$540
Best time to beat the crowds with an average 12% drop in price.
Most popular time to fly with an average 35% increase in price.
Flight from Baltimore 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.

  • What is the cheapest time of day to fly to Northern Ireland?

    The cheapest time of day to fly to Northern Ireland is generally in the evening, when round-trip flights cost $681 on average. Morning departures are around 100% cheaper than evening flights, on average. The most expensive time of day to fly to Northern Ireland is generally at night, which is peak travel time and where the average cost of a ticket is $796.

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

 
See real verified KAYAK customer reviews for airlines flying from Washington, D.C. to Northern Ireland. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
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.
7.2
American AirlinesOverall score based on 10000 reviews
7.2Comfort
7.5Boarding
6.5Food
8.0Crew
6.9Entertainment
Airline reviews

Pathetic check in experience at JFK. Everything is self check in. Not enough staff present to help with when the check in process or the kiosk gets stuck. Staff present not welcoming or pleasant at all. On the other hand the NY based flight crew was great. Courteous and friendly throughout the flight. Special meals leave a lot to be desired. Kids meals should be made available when kids are flying and same goes for special kids meals too.

6.0 GoodA, Jul 2025JFK - LHR
Read more American Airlines reviews

Pathetic check in experience at JFK. Everything is self check in. Not enough staff present to help with when the check in process or the kiosk gets stuck. Staff present not welcoming or pleasant at all. On the other hand the NY based flight crew was great. Courteous and friendly throughout the flight. Special meals leave a lot to be desired. Kids meals should be made available when kids are flying and same goes for special kids meals too.

They are still charging me after taking 466 and 833 for round trip from AR to to Bradley airport from 19 to 21. Then poor experience. Am hurt and I will say it on social media. Please stay away from this airline. I see in my bank account they are still taking 644. Am trying to stop it. I used to fly United airlines and I suggest that if you don't want extra charges and good service you go back there. American airlines delayed my flight again and I was late for my meeting, no recompensation but charging me over and over.

They changed our Gate 5 times, and concourse twice. Changed our seats twice.

Flight was full, and would have preferred an aisle seat, but due to getting a late ticket ,the seat I had was adequate. The flight crew were very help full and hard working. Food and drink were excellent for the 11hr flight. Overall I was pleased with flight, and would recommend British Airways again.

The chicken adobo was a little too spicy but good otherwise. My personal opinion. Movie selection could be improved, too many horror movies. Could add a few more chick flicks! The flight was bumpy at times. We arrived a little early too! Flight attendants friendly.

Again flight was awesome except British Airways lost both gate checked luggage’s. Still missing

Pitch was very small. Knees were on the seat back in front of me.

really bad they refused to check in luggages that I had purchased, even showing them the transaction receipt from british airways app the staff in miami was MEDIOCRE

British Airways staff are very polite and willing to help.

Wonderful as usual except for other guests that were unruly and not kept in check by the Crew.

My experience with British Airways is excellent, thanks for all 🫶🏻✈️

Old tired plane, Uncomfortable business class seat. Breakfast dreadful and meagre. At least flight was on time!

The crew is very friendly and helpful. The food is good for airplane food. The flight is long and hard to sleep. The leg space is great. The plane arrived in plenty of time.

Enjoyable flight, helpful crew everything was organized to accommodate passengers.

Captain sick. Unable to get replacement so delayed me 30 hours, many others delayed 54 hours. TOTALLY DESTROYED ALL MY PLANS, including lost my rental car which would now cost over 5 times what I paid so stuck with buses n trains... lost hotel reservations.... HORRIBLE!!!

They’ve lost my bag and I have no way of really getting in touch with anyone and have received no updates.

Very crowded, no real explanation of food "chicken or pasta?" After dinner no drinks service. Plane was clean, but little help with finding soaces fir luggage to get into overhead bins. Many passengers putting 2 bags, hats, duty free in overhead bins so no space for roll ons

Flight was good but seat in 12D was not comfortable, better on the Airbus 321 from Tampa to Charlotte. No breakfast was served before landing in zLonfon only a coffee and orange juice.

I was transferred to an American Airlines flight. The boarding was late and unorganized. The seating was extremely tight and uncomfortable. Will not use AA again.

The entertainment selection was ok, but overall not bad! The crew was great.

Everything you need to know for your flight from Washington, D.C. to Northern Ireland

Cabin class types available on flights to Northern Ireland

Cabin classes available on flights to Northern Ireland. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.

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