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 £328 for a one-way ticket and £529 for a return. 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>

£328 CHEAP FLIGHTS from Belfast to Washington, D.C. (IAD) (BF1 - IAD)

IAD

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Cheapest return fare

£529

British Airways

Thu 5/3Mon 9/3

BHD - IAD • 1 stop

Cheapest one-way flight

£328

Multiple Airlines

Fri 13/3

BFS - IAD • 3 stops

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Flight Deals

Cheap Flights from Belfast to Dulles Intl

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, 5 Mar - Mon, 9 Mar

06:35 - 19:55

BHD

IAD

18h 20m

1 stop

22:45 - 14:15

IAD

BHD

11h 30m

1 stop

£529British Airways

Thu, 12 Mar - Thu, 19 Mar

14:25 - 17:40

BFS

IAD

31h 15m

2 stops

21:30 - 22:20

IAD

BFS

20h 50m

2 stops

£542Multiple Airlines

Thu, 5 Mar - Mon, 9 Mar

10:35 - 19:30

BHD

IAD

13h 55m

2 stops

19:20 - 10:40

IAD

BHD

11h 20m

1 stop

£544British Airways

Thu, 5 Mar - Mon, 9 Mar

10:35 - 19:30

BHD

IAD

13h 55m

2 stops

19:20 - 12:15

IAD

BHD

12h 55m

2 stops

£565British Airways

Sun, 15 Mar - Sun, 22 Mar

22:45 - 15:35

BFS

IAD

44h 50m

3 stops

23:30 - 18:55

IAD

BFS

15h 25m

2 stops

£645Multiple Airlines

Thu, 12 Mar - Thu, 19 Mar

07:00 - 19:45

BFS

IAD

40h 45m

3 stops

18:30 - 22:20

IAD

BFS

23h 50m

3 stops

£663Multiple Airlines

Thu, 12 Mar - Thu, 19 Mar

07:00 - 19:45

BFS

IAD

40h 45m

3 stops

18:30 - 14:35

IAD

BFS

16h 05m

2 stops

£684Multiple Airlines

Sun, 15 Mar - Sun, 22 Mar

22:45 - 15:35

BFS

IAD

44h 50m

3 stops

20:40 - 21:55

IAD

BFS

21h 15m

3 stops

£689Multiple Airlines

Thu, 5 Mar - Mon, 9 Mar

11:05 - 15:35

BHD

IAD

33h 30m

1 stop

19:20 - 10:40

IAD

BHD

11h 20m

1 stop

£730British Airways

Thu, 5 Mar - Mon, 9 Mar

20:00 - 19:55

BHD

IAD

28h 55m

1 stop

22:45 - 14:15

IAD

BHD

11h 30m

1 stop

£733British Airways

Useful Info

Cheapest flight	£328

Flight from Belfast Intl Airport to Washington, D.C.

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 £328 for a one-way ticket and £529 for a return.
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

£328 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 £328 for a one-way ticket and £529 for a return.

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