What is the cheapest flight from Washington, D.C. Dulles Intl Airport to Belfast?

In the last 3 days, the lowest price for a flight from Washington, D.C. Dulles Intl Airport to Belfast was £505 for a one-way ticket and £587 for a return. Visit our flight page for the latest deals!>/a>

Which aircraft models fly most regularly from Washington Dulles Airport to Belfast?

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

Which airline alliances offer flights from Washington Dulles Airport to Belfast?

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

How does KAYAK find such low prices on flights from Washington Dulles Airport 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 Dulles Airport 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 Dulles Airport to Belfast?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Belfast from Washington Dulles Airport is likely to change within 7 days, so travellers 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 Dulles Airport 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 Dulles Airport 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 Dulles Airport 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 Dulles Airport 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>

£378 CHEAP FLIGHTS from Washington Dulles to Belfast (IAD - BF1)

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Flights Deals

Cheap Flight Deals from Dulles Intl to Belfast (IAD-BHD)

Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Dulles Intl 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.

Round-trip

One-way

Last minute

Recent return flight deals from Dulles Intl to Belfast

KAYAK's recommended return flight deals from the most popular airlines that fly from Dulles Intl to Belfast.

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

22:45 - 15:05IAD-BHD

11h 20m1 stop

06:30 - 15:35BHD-IAD

14h 05m1 stop

£439American Airlines

Find Deal

Sat, 6 Sep - Sat, 20 Dec

14:09 - 15:05IAD-BHD

19h 56m2 stops

18:00 - 15:58BHD-IAD

26h 58m2 stops

£451British Airways

Find Deal

Sat, 6 Sep - Sat, 20 Dec

08:22 - 16:40IAD-BFS

27h 18m2 stops

05:55 - 21:04BFS-IAD

20h 09m3 stops

£560

Find Deal

Tue, 10 Jun - Tue, 17 Jun

20:30 - 16:55IAD-BHD

15h 25m2 stops

06:30 - 15:35BHD-IAD

14h 05m1 stop

£561KLM

Find Deal

Sun, 6 Jul - Sun, 24 Aug

12:13 - 21:15IAD-BHD

28h 02m2 stops

17:25 - 19:37BHD-IAD

31h 12m2 stops

£569Delta

Find Deal

Sun, 6 Jul - Sun, 24 Aug

20:30 - 16:55IAD-BHD

39h 25m2 stops

17:25 - 15:35BHD-IAD

27h 10m1 stop

£570Delta

Find Deal

Sat, 5 Jul - Sun, 24 Aug

09:40 - 16:40IAD-BFS

26h 00m3 stops

08:20 - 21:04BFS-IAD

17h 44m3 stops

£594

Find Deal

Tue, 10 Jun - Tue, 17 Jun

20:25 - 14:35IAD-BHD

13h 10m2 stops

07:00 - 18:55BHD-IAD

16h 55m2 stops

£749Aer Lingus

Find Deal

Sun, 8 Jun - Sun, 15 Jun

22:40 - 17:45IAD-BHD

14h 05m1 stop

06:50 - 18:55BHD-IAD

17h 05m2 stops

£796Aer Lingus

Find Deal

Sun, 8 Jun - Sun, 15 Jun

17:25 - 16:55IAD-BHD

18h 30m1 stop

08:30 - 15:35BHD-IAD

12h 05m1 stop

£907KLM

Find Deal

Thu, 19 Jun - Tue, 24 Jun

Useful Info

KAYAK's insights & trends for Dulles Intl to Belfast flights

Get data-powered insights and trends into flights from Dulles Intl 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 Dulles Airport to Belfast?

In the past 3 days, the cheapest return tickets from Washington Dulles Airport to Belfast were found on American Airlines (£439) and British Airways (£451).

Find deals

When to book flights from Dulles Intl to Belfast

Are your dates flexible? Find out the best times to travel from Dulles Intl 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. Dulles Intl Airport to Belfast?
In the last 3 days, the lowest price for a flight from Washington, D.C. Dulles Intl Airport to Belfast was £505 for a one-way ticket and £587 for a return.
Which aircraft models fly most regularly from Washington Dulles Airport to Belfast?
We unfortunately don’t have that data for this specific route.
Which airline alliances offer flights from Washington Dulles Airport to Belfast?
oneworld, and SkyTeam are the airline alliances operating flights between Washington Dulles Airport and Belfast, with SkyTeam being the most commonly used for this route.
How does KAYAK find such low prices on flights from Washington Dulles Airport 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 Dulles Airport to Belfast.
How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Washington Dulles Airport to Belfast?
KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Belfast from Washington Dulles Airport is likely to change within 7 days, so travellers know whether to wait or book now.
What is the Hacker Fare option on flights from Washington Dulles Airport 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 Dulles Airport with another airline.
What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington Dulles Airport 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 Dulles Airport 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 Dulles Intl to Belfast

Airports

Cabin class

Complete your trip

Direct flights

Flights to other cities

Origins

Return flight deals

Information on your arrival and departure airports

Washington Dulles Airport (IAD)

£378 Find Cheap Flights from Washington Dulles Airport to Belfast

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

Cheap Flight Deals from Dulles Intl to Belfast (IAD-BHD)

Recent return flight deals from Dulles Intl to Belfast

Recent one-way flight deals from Dulles Intl to Belfast

Recent last minute flight deals from Dulles Intl to Belfast

KAYAK's insights & trends for Dulles Intl to Belfast flights

Get data-powered insights and trends into flights from Dulles Intl 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 Dulles Airport to Belfast?

In the past 3 days, the cheapest return tickets from Washington Dulles Airport to Belfast were found on American Airlines (£439) and British Airways (£451).

When to book flights from Dulles Intl to Belfast

FAQs for booking Washington Dulles Airport to Belfast flights

What is the cheapest flight from Washington, D.C. Dulles Intl Airport to Belfast?

In the last 3 days, the lowest price for a flight from Washington, D.C. Dulles Intl Airport to Belfast was £505 for a one-way ticket and £587 for a return.

Which aircraft models fly most regularly from Washington Dulles Airport to Belfast?

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

Which airline alliances offer flights from Washington Dulles Airport to Belfast?

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

How does KAYAK find such low prices on flights from Washington Dulles Airport 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 Dulles Airport to Belfast.

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Washington Dulles Airport to Belfast?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Belfast from Washington Dulles Airport is likely to change within 7 days, so travellers know whether to wait or book now.

What is the Hacker Fare option on flights from Washington Dulles Airport 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 Dulles Airport with another airline.

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington Dulles Airport 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 Dulles Airport 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 Dulles Intl to Belfast

Information on your arrival and departure airports

Cabin class types available on flights to Belfast

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

Find direct flights to and from Dulles Intl and Belfast

Flights to other popular destinations

Flights from domestic origins to Belfast

Find deals for your return flight