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

In the last 3 days, the lowest price for a flight from Belfast to Washington, D.C. Dulles Intl Airport was £606 for a return ticket. Visit our flight page for the latest deals!>/a>

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

There are 2 airports in Belfast (Belfast Intl and Belfast City.) and only 1 airport in Washington, D.C. (Washington, D.C. Dulles Intl). The cheapest flights are generally found on the Belfast City Airport to Washington, D.C. Dulles Intl flight route. Visit our flight page for the latest deals!>/a>

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

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

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

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 Belfast to Washington, D.C.. 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 Belfast to Washington, D.C.?

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

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

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 Washington, D.C. from Belfast 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>

Cheap Flights from Belfast to Washington, D.C. (IAD)

IAD

KAYAK searches hundreds of travel sites at once for deals on flights to Washington, D.C. Dulles Intl Airport

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Cheapest return fare

£606

Multiple Airlines

Thu 12/3Tue 17/3

BHD - IAD • 3 stops

Cheapest one-way flight

Multiple Airlines

Fri 12/12

BF1 - IAD • multi-stop

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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 Dulles Intl!

Flight Deals

Cheap Flights from Belfast to Dulles Intl

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

Thu, 12 Mar - Tue, 17 Mar

07:00 - 22:00

BHD

IAD

43h 00m3 stops

20:40 - 17:15

IAD

BHD

16h 35m2 stops

£606Multiple Airlines

Thu, 12 Mar - Tue, 17 Mar

08:50 - 20:55

BFS

IAD

16h 05m1 stop

19:20 - 21:30

IAD

BFS

22h 10m1 stop

£609Multiple Airlines

Thu, 12 Mar - Tue, 17 Mar

07:25 - 20:55

BHD

IAD

17h 30m1 stop

19:20 - 16:15

IAD

BHD

16h 55m1 stop

£618Multiple Airlines

Thu, 12 Mar - Tue, 17 Mar

07:25 - 19:30

BHD

IAD

16h 05m2 stops

20:40 - 20:30

IAD

BHD

19h 50m2 stops

£618Multiple Airlines

Thu, 12 Mar - Tue, 17 Mar

07:00 - 22:00

BHD

IAD

43h 00m3 stops

18:30 - 20:30

IAD

BHD

22h 00m3 stops

£663Multiple Airlines

Thu, 29 Jan - Mon, 2 Feb

09:05 - 15:35

BHD

IAD

11h 30m1 stop

18:20 - 10:40

IAD

BHD

11h 20m1 stop

£730British Airways

Thu, 29 Jan - Mon, 2 Feb

09:05 - 19:55

BHD

IAD

15h 50m1 stop

17:46 - 14:15

IAD

BHD

15h 29m2 stops

£730British Airways

Thu, 29 Jan - Mon, 2 Feb

11:05 - 19:55

BHD

IAD

13h 50m1 stop

17:46 - 14:15

IAD

BHD

15h 29m2 stops

£733British Airways

Thu, 29 Jan - Mon, 2 Feb

11:05 - 23:12

BHD

IAD

17h 07m2 stops

13:08 - 10:40

IAD

BHD

16h 32m2 stops

£734British Airways

Thu, 29 Jan - Mon, 2 Feb

11:05 - 23:12

BHD

IAD

17h 07m2 stops

17:46 - 14:15

IAD

BHD

15h 29m2 stops

£738British Airways

Useful Info

Cheapest flight	£606

Flight from Belfast City Airport to Washington Dulles Airport

When to book flights from Belfast to Dulles Intl

Are your dates flexible? Find out the best times to travel from Belfast to Dulles Intl 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 Belfast to Washington, D.C. Dulles Intl Airport?
In the last 3 days, the lowest price for a flight from Belfast to Washington, D.C. Dulles Intl Airport was £606 for a return ticket.
Which airports will I be using when flying from Belfast to Washington, D.C.?
There are 2 airports in Belfast (Belfast Intl and Belfast City.) and only 1 airport in Washington, D.C. (Washington, D.C. Dulles Intl). The cheapest flights are generally found on the Belfast City Airport to Washington, D.C. Dulles Intl flight route.
Which aircraft models fly most regularly from Belfast to Washington, D.C.?
We unfortunately don’t have that data for this specific route.
How does KAYAK find such low prices on flights from Belfast to Washington, D.C.?
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 Belfast to Washington, D.C..
How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Belfast to Washington, D.C.?
KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Washington, D.C. from Belfast 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 Belfast to Washington, D.C.?
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 Washington, D.C. with an airline and back to Belfast with another airline.
What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Belfast to Washington, D.C.?
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 Washington, D.C. from Belfast 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 Belfast to Dulles Intl

Airports

Cabin class

Complete your trip

Direct flights

Flights to other cities

Origins

Other airports

Return flight deals

Information on your arrival and departure airports

Dulles Intl (IAD)

IAD

£606 Find Cheap Flights from Belfast to Washington, D.C.

KAYAK searches hundreds of travel sites at once for deals on flights to Washington, D.C. Dulles Intl Airport

Everything you should know

Cheap Flights from Belfast to Dulles Intl

Recent return flight deals from Belfast to Dulles Intl

Recent one-way flight deals from Belfast to Dulles Intl

Good to know - Cheap tickets from Belfast to Washington, D.C.

When to book flights from Belfast to Dulles Intl

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

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

In the last 3 days, the lowest price for a flight from Belfast to Washington, D.C. Dulles Intl Airport was £606 for a return ticket.

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

There are 2 airports in Belfast (Belfast Intl and Belfast City.) and only 1 airport in Washington, D.C. (Washington, D.C. Dulles Intl). The cheapest flights are generally found on the Belfast City Airport to Washington, D.C. Dulles Intl flight route.

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

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

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

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 Belfast to Washington, D.C..

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

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

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

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Belfast to Washington, D.C.?

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 Washington, D.C. from Belfast 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 Belfast to Dulles Intl

Information on your arrival and departure airports

Cabin class types available on flights to Dulles Intl

Complete your trip to Washington, D.C. with a hotel stay or car hire

Find direct flights to and from Belfast and Dulles Intl

Flights to other popular destinations

Flights from domestic origins to Dulles Intl

Choose which airport to fly into in Washington, D.C.

Find deals for your return flight