£248 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 11/9. 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, 0 bags

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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41,299,237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest return fare
£660
Multiple Airlines
Tue 28/7Tue 4/8
IAD - BFS • 2 stops
Cheapest one-way flight
£248
Multiple Airlines
Fri 11/9
IAD - BFS • 2 stops
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KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you love your trip to Belfast!
Flight Deals
Booking Insights
Flight Deals

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 return 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 return flight deals from Washington, D.C. to Belfast

Tue, 28 Jul - Tue, 4 Aug
Multiple Airlines Logo
20:30 - 23:05
IAD
-
BFS
21h 35m
2 stops
Multiple Airlines Logo
08:50 - 15:10
BFS
-
IAD
35h 20m
3 stops
£660Multiple Airlines
Sun, 20 Sep - Thu, 24 Sep
British Airways Logo
22:25 - 14:35
IAD
-
BHD
11h 10m
1 stop
British Airways Logo
06:30 - 17:25
BHD
-
IAD
15h 55m
1 stop
£728British Airways
Sun, 13 Sep - Thu, 17 Sep
British Airways Logo
21:35 - 14:35
BWI
-
BHD
12h 00m
1 stop
British Airways Logo
16:35 - 19:40
BHD
-
BWI
32h 05m
1 stop
£728British Airways
Sun, 20 Sep - Thu, 24 Sep
British Airways Logo
22:25 - 14:35
IAD
-
BHD
11h 10m
1 stop
British Airways Logo
06:30 - 17:25
BHD
-
IAD
15h 55m
1 stop
£728British Airways
Sun, 13 Sep - Thu, 17 Sep
British Airways Logo
21:35 - 14:35
BWI
-
BHD
12h 00m
1 stop
British Airways Logo
16:35 - 19:40
BHD
-
BWI
32h 05m
1 stop
£728British Airways
Tue, 28 Jul - Tue, 4 Aug
Multiple Airlines Logo
18:55 - 19:50
DCA
-
BFS
19h 55m
2 stops
Multiple Airlines Logo
05:55 - 21:48
BFS
-
DCA
20h 53m
3 stops
£731Multiple Airlines
Sun, 6 Sep - Mon, 14 Sep
Delta Logo
17:40 - 09:20
IAD
-
BHD
10h 40m
1 stop
Delta Logo
17:30 - 15:35
BHD
-
IAD
27h 05m
1 stop
£752Delta
Sun, 6 Sep - Mon, 14 Sep
KLM Logo
12:29 - 09:20
IAD
-
BHD
15h 51m
2 stops
KLM Logo
17:30 - 15:35
BHD
-
IAD
27h 05m
1 stop
£755KLM
Sun, 6 Sep - Tue, 15 Sep
Delta Logo
12:29 - 09:20
IAD
-
BHD
15h 51m
2 stops
Delta Logo
17:30 - 18:07
BHD
-
IAD
29h 37m
2 stops
£763Delta
Fri, 11 Sep - Wed, 16 Sep
American Airlines Logo
20:24 - 15:30
DCA
-
BHD
14h 06m
2 stops
American Airlines Logo
10:05 - 21:13
BHD
-
DCA
16h 08m
2 stops
£775American Airlines
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.

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

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 5 days.

In the past 3 days, the cheapest return tickets from Washington, D.C. to Belfast were found on British Airways (£728) and Delta (£752).

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 return price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns 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 £248 for a one-way ticket and £660 for a return.

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

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

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 are not guaranteed.