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 £207 for a one-way ticket and £464 for a return. Visit our flight page for the latest deals!>/a>

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. Visit our flight page for the latest deals!>/a>

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. Visit our flight page for the latest deals!>/a>

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. Visit our flight page for the latest deals!>/a>

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. Visit our flight page for the latest deals!>/a>

£207 CHEAP FLIGHTS from Washington, D.C. to Belfast (WAS - BF1)

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

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Filter your dealsChoose cabin class, free Wi-Fi and more.

Cheapest return fare

£464

British Airways

Thu 5/3Thu 12/3

IAD - BHD • 1 stop

Cheapest one-way flight

£207

Multiple Airlines

Wed 28/1

IAD - BFS • 2 stops

Start a new search

KAYAK searches hundreds of sites at once to find you the best travel deals.

We hope you love your trip to Belfast!

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.

Round-trip

One-way

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

Thu, 5 Mar - Thu, 12 Mar

18:20 - 10:20

IAD

BHD

11h 00m1 stop

06:35 - 20:55

BHD

IAD

18h 20m1 stop

£464British Airways

Mon, 16 Mar - Sun, 22 Mar

22:45 - 16:05

IAD

BHD

13h 20m1 stop

17:35 - 16:35

BHD

IAD

27h 00m1 stop

£479British Airways

Mon, 16 Mar - Sun, 22 Mar

22:45 - 16:05

IAD

BHD

13h 20m1 stop

20:25 - 20:55

BHD

IAD

28h 30m1 stop

£480British Airways

Thu, 15 Jan - Tue, 20 Jan

22:15 - 08:25

DCA

BHD

29h 10m2 stops

10:00 - 21:30

BHD

DCA

16h 30m2 stops

£480British Airways

Thu, 29 Jan - Thu, 5 Feb

19:40 - 22:20

BWI

BFS

21h 40m2 stops

06:30 - 18:40

BFS

BWI

17h 10m2 stops

£489Multiple Airlines

Thu, 5 Mar - Thu, 12 Mar

12:23 - 16:50

IAD

BHD

23h 27m2 stops

06:30 - 17:05

BHD

IAD

14h 35m1 stop

£501Delta

Thu, 15 Jan - Tue, 20 Jan

18:05 - 16:50

IAD

BHD

17h 45m1 stop

17:20 - 19:09

BHD

IAD

30h 49m2 stops

£504KLM

Thu, 5 Mar - Thu, 12 Mar

12:23 - 16:50

IAD

BHD

23h 27m2 stops

06:30 - 22:59

BHD

IAD

20h 29m2 stops

£508Delta

Thu, 29 Jan - Thu, 5 Feb

19:40 - 22:20

IAD

BFS

21h 40m2 stops

06:30 - 18:30

BFS

IAD

17h 00m2 stops

£508Multiple Airlines

Thu, 15 Jan - Tue, 20 Jan

17:05 - 20:50

IAD

BHD

22h 45m2 stops

07:00 - 15:35

BHD

IAD

13h 35m2 stops

£571Aer Lingus

Useful Info

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.

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 £207 for a one-way ticket and £464 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

Complete your trip

Direct flights

Flights to other cities

Origins

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

First Class flights from Washington, D.C. to Belfast

Business Class flights from Washington, D.C. to Belfast

Prem Econ Class flights from Washington, D.C. to Belfast

Economy class flights from Washington, D.C. to Belfast

£188 Find Cheap Flights from Washington, D.C. to Belfast

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

Everything you should know

Cheap Flights from Washington, D.C. to Belfast (WAS-BHD)

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

Recent one-way flight deals from Washington, D.C. to Belfast

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

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 £207 for a one-way ticket and £464 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

Complete your trip to Belfast with a hotel stay or car hire

Find direct flights to and from Washington, D.C. and Belfast

Flights to other popular destinations

Flights from domestic origins to Belfast