$264 Find Cheap Flights from Washington, D.C. to Belfast

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Washington, D.C. to Belfast departing on 9/27. 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 Belfast

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

 
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 Belfast 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 Belfast

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
Thu, Sep 25 - Mon, Oct 6
 Logo
6:50 pm - 11:35 pmBWI-BFS
23h 45m2 stops
 Logo
6:45 am - 5:40 pmBFS-BWI
15h 55m2 stops
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
Thu, Sep 25 - Mon, Oct 6
British Airways Logo
6:45 am - 8:45 amDCA-BHD
21h 00m2 stops
British Airways Logo
6:40 am - 5:56 pmBHD-DCA
16h 16m2 stops
$637British Airways
Find Deal
Thu, Sep 25 - Mon, Oct 6
KLM Logo
5:25 pm - 9:15 pmIAD-BHD
22h 50m1 stop
KLM Logo
6:30 am - 3:35 pmBHD-IAD
14h 05m1 stop
$704KLM
Find Deal
Wed, Nov 12 - Sun, Nov 16
Virgin Atlantic Logo
6:10 am - 4:50 pmIAD-BHD
29h 40m2 stops
Virgin Atlantic Logo
6:30 am - 4:05 pmBHD-IAD
14h 35m1 stop
$709Virgin Atlantic
Find Deal
Thu, Sep 25 - Mon, Oct 6
KLM Logo
5:25 pm - 9:15 pmIAD-BHD
22h 50m1 stop
KLM Logo
6:30 am - 7:18 pmBHD-IAD
17h 48m2 stops
$715KLM
Find Deal
Wed, Nov 12 - Sun, Nov 16
Virgin Atlantic Logo
6:10 am - 4:50 pmIAD-BHD
29h 40m2 stops
Virgin Atlantic Logo
6:30 am - 9:58 amBHD-IAD
32h 28m2 stops
$719Virgin Atlantic
Find Deal
Sat, Sep 6 - Sat, Dec 20
American Airlines Logo
10:45 pm - 5:15 pmIAD-BHD
13h 30m1 stop
American Airlines Logo
9:15 am - 3:35 pmBHD-IAD
11h 20m1 stop
$748American Airlines
Find Deal
Sat, Sep 6 - Sat, Dec 20
American Airlines Logo
9:35 pm - 5:15 pmBWI-BHD
14h 40m1 stop
American Airlines Logo
11:35 am - 6:45 pmBHD-BWI
12h 10m1 stop
$868American Airlines
Find Deal
Booking Insights

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

Get data-powered insights and trends into flights from Washington, D.C. to Belfast 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 Belfast?

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 Belfast, 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 Belfast is February, where tickets cost $618 (return) on average. On the other hand, the most expensive months are June and July, where the average cost of round-trip tickets is $1,232 and $1,023 respectively.

Good to know

Cheapest flight$264
Flight from Washington Dulles Airport to Belfast Intl Airport

When to book flights from Washington, D.C. to Belfast

Are your dates flexible? Find out the best times to travel from Washington, D.C. to Belfast based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Washington, D.C. to Belfast

  • What is the cheapest flight from Washington, D.C. to Belfast?

    In the last 3 days, the lowest price for a flight from Washington, D.C. to Belfast was $264 for a one-way ticket and $540 for a round-trip.

  • Do I need a passport to fly between Washington, D.C. and Belfast?

    Yes, you’ll need a passport to travel to Belfast from Washington, D.C..

  • Which airports will I be using when flying from Washington, D.C. to Belfast?

    Washington, D.C. is served by 2 major airports and there are 2 airports in Belfast. You will leave Washington, D.C. from one of these airports: Washington, D.C. Reagan-National or Washington, D.C. Dulles Intl. You will be arriving in Belfast at one of these airports: Belfast Intl or Belfast City.

  • Which aircraft models fly most regularly from Washington, D.C. to Belfast?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Washington, D.C. to Belfast?

    oneworld, and SkyTeam are the airline alliances operating flights between Washington, D.C. and Belfast, with SkyTeam being the most commonly used for this route.

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

    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 Belfast.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Belfast from Washington, D.C. 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 Belfast?

    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 to Belfast with an airline and back to Washington, D.C. 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 Belfast?

    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 Belfast from Washington, D.C. up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

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

 
See real verified KAYAK customer reviews for airlines flying from Washington, D.C. to Belfast. 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 Belfast? 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
6.9Entertainment
7.2Comfort
7.5Boarding
8.0Crew
6.5Food
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.

Flight was delayed. Though I checked in with BA live chat three times, our special meals were not provided.

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.

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

Cabin class types available on flights from Washington, D.C. to Belfast

Cabin classes available on flights from Washington, D.C. to Belfast. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.

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