How do I get Price Alerts for flights from Belfast Intl Airport to Washington, D.C. Dulles Intl Airport?

Search flight deals from Belfast Intl Airport to Washington, D.C. Dulles Intl Airport . While viewing offers you’ll have the option to create a Price Alert.

How does momondo find its flight prices?

We compare prices from 700+ competitors to help you find the price that works best for you. momondo operates in over 30 international markets, bringing you access to a wide range of fares and deals. Search for your travel using momondo for a diverse range of options from airlines and OTAs.

How old do you have to be to fly from Belfast Intl Airport to Washington, D.C. Dulles Intl Airport?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Belfast Intl Airport to Washington, D.C. Dulles Intl Airport.

What documentation or ID do you need to fly to Washington, D.C. Dulles Intl Airport?

The travel and health documents required for your trip to Washington, D.C. Dulles Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Washington, D.C. Dulles Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

£311 Cheap Flights from Belfast Intl Airport to Washington, D.C. Dulles Intl Airport in 2026

Voted winner of Europe's Best Travel App 2023

Find the cheapest flights from Belfast Intl Airport to Washington, D.C.

Return

One-way

Cheap return flights

Enter your travel dates to find the best prices.

07:10 - 19:20

BFS

IAD

17h 10m

2 stops

20:30 - 21:30

IAD

BFS

20h 00m

2 stops

£686Multiple Airlines

Sun, 9 Aug - Sun, 16 Aug

22:45 - 15:24

BFS

IAD

21h 39m

2 stops

20:30 - 22:20

IAD

BFS

20h 50m

3 stops

£704Multiple Airlines

Wed, 12 Aug - Wed, 19 Aug

21:10 - 15:45

BFS

IAD

23h 35m

2 stops

17:15 - 19:15

IAD

BFS

21h 00m

2 stops

£720Multiple Airlines

Wed, 12 Aug - Wed, 19 Aug

05:55 - 21:14

BFS

IAD

20h 19m

3 stops

20:30 - 22:20

IAD

BFS

20h 50m

3 stops

£723Multiple Airlines

Wed, 12 Aug - Wed, 19 Aug

18:00 - 19:20

BFS

IAD

30h 20m

2 stops

20:30 - 19:55

IAD

BFS

18h 25m

2 stops

£806Multiple Airlines

Sun, 9 Aug - Sun, 16 Aug

09:35 - 20:35

BFS

IAD

40h 00m

3 stops

16:20 - 22:50

IAD

BFS

25h 30m

2 stops

£847Multiple Airlines

Sun, 9 Aug - Sun, 16 Aug

06:10 - 12:47

BFS

IAD

35h 37m

2 stops

18:15 - 11:45

IAD

BFS

12h 30m

1 stop

£998Multiple Airlines

Wed, 12 Aug - Wed, 19 Aug

20:45 - 15:10

BFS

IAD

47h 25m

2 stops

21:45 - 19:55

IAD

BFS

17h 10m

1 stop

£1,003Multiple Airlines

Sun, 9 Aug - Sun, 16 Aug

13:30 - 15:45

BFS

IAD

31h 15m

2 stops

09:45 - 18:25

IAD

BFS

27h 40m

3 stops

£1,125Multiple Airlines

Sun, 9 Aug - Sun, 16 Aug

12:45 - 19:20

BFS

IAD

35h 35m

3 stops

09:45 - 18:25

IAD

BFS

27h 40m

3 stops

£1,195Multiple Airlines

Sun, 9 Aug - Sun, 16 Aug

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Use the filters below to find and compare flights from Belfast Intl Airport to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

Fastest return journey

BelfastWashington, D.C.

BFS - IAD

BFSIAD

Belfast Intl

Sun 9/8

07:10-19:20

2 stops17h 10m

Washington, D.C. Dulles Intl

Sun 16/8

20:30-21:30

2 stops20h 00m

£686

BelfastWashington, D.C.

BFS - IAD

BFSIAD

Belfast Intl

Wed 12/8

22:45-15:24

2 stops21h 39m

Washington, D.C. Dulles Intl

Wed 19/8

20:30-22:20

3 stops20h 50m

£704

BelfastWashington, D.C.

BFS - IAD

BFSIAD

Belfast Intl

Wed 12/8

21:10-15:45

2 stops23h 35m

Washington, D.C. Dulles Intl

Wed 19/8

17:15-19:15

2 stops21h 00m

£720

BelfastWashington, D.C.

BFS - IAD

BFSIAD

Belfast Intl

Wed 12/8

05:55-21:14

3 stops20h 19m

Washington, D.C. Dulles Intl

Wed 19/8

20:30-22:20

3 stops20h 50m

£723

BelfastWashington, D.C.

BFS - IAD

BFSIAD

Belfast Intl

Sun 9/8

18:00-19:20

2 stops30h 20m

Washington, D.C. Dulles Intl

Sun 16/8

20:30-19:55

2 stops18h 25m

£806

BelfastWashington, D.C.

BFS - IAD

BFSIAD

Belfast Intl

Sun 9/8

09:35-20:35

3 stops40h 00m

Washington, D.C. Dulles Intl

Sun 16/8

16:20-22:50

2 stops25h 30m

£847

BelfastWashington, D.C.

BFS - IAD

BFSIAD

Belfast Intl

Wed 12/8

06:10-12:47

2 stops35h 37m

Washington, D.C. Dulles Intl

Wed 19/8

18:15-11:45

1 stop12h 30m

£998

BelfastWashington, D.C.

BFS - IAD

BFSIAD

Belfast Intl

Sun 9/8

20:45-15:10

2 stops47h 25m

Washington, D.C. Dulles Intl

Sun 16/8

21:45-19:55

1 stop17h 10m

£1,003

BelfastWashington, D.C.

BFS - IAD

BFSIAD

Belfast Intl

Sun 9/8

13:30-15:45

2 stops31h 15m

Washington, D.C. Dulles Intl

Sun 16/8

09:45-18:25

3 stops27h 40m

£1,125

BelfastWashington, D.C.

BFS - IAD

BFSIAD

Belfast Intl

Sun 9/8

12:45-19:20

3 stops35h 35m

Washington, D.C. Dulles Intl

Sun 16/8

09:45-18:25

3 stops27h 40m

£1,195

Flights are sorted by cheapest return flights first.

Showing 1-10 of 18 resultsSorted by cheapest first

When to book flights from Belfast Intl Airport to Washington, D.C. Dulles Intl Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Belfast Intl Airport to Washington, D.C. Dulles Intl Airport according to our flight data. Find out which month and days have the cheapest flights.

Estimated return price

Cheap Belfast Intl Airport to Washington, D.C. Dulles Intl Airport (BFS to IAD) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Belfast Intl Airport to Washington, D.C. Dulles Intl Airport

Fastest flight time	21h 39m
Direct flights	None

The fastest flight from Belfast Intl Airport to Washington, D.C. Dulles Intl Airport takes 21h 39m

There are no direct flights from Belfast Intl Airport to Washington, D.C. Dulles Intl Airport. There are no popular flight routes from Belfast Intl Airport to Washington, D.C. Dulles Intl Airport.

Search flight deals

Frequently asked questions about flying from Belfast Intl Airport to Washington, D.C. Dulles Intl Airport

How far is Belfast Intl to Washington, D.C. Dulles Intl by plane?
The straight-line distance from Belfast Intl to Washington, D.C. Dulles Intl is 3375.6 mi. A reasonable flight in good conditions will take 21h 39m.
When did momondo last update prices for flights from Belfast Intl Airport to Washington, D.C. Dulles Intl Airport?
Prices for flights from Belfast Intl Airport to Washington, D.C. Dulles Intl Airport refresh daily.
How old do you have to be to fly from Belfast Intl Airport to Washington, D.C. Dulles Intl Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Belfast Intl Airport to Washington, D.C. Dulles Intl Airport.
What documentation or ID do you need to fly to Washington, D.C. Dulles Intl Airport?
The travel and health documents required for your trip to Washington, D.C. Dulles Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Washington, D.C. Dulles Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Frequently asked questions about flying from Belfast Intl Airport to Washington, D.C. Dulles Intl Airport

How do I get Price Alerts for flights from Belfast Intl Airport to Washington, D.C. Dulles Intl Airport?
Search flight deals from Belfast Intl Airport to Washington, D.C. Dulles Intl Airport. While viewing offers you’ll have the option to create a Price Alert.
How can I save money on flights from Belfast Intl Airport to Washington, D.C. Dulles Intl Airport with momondo?
Plan your trips smart with the “Price Forecast” feature, which uses flight data to help you pick the best days to fly for the lowest fares. Our “Price Calendar” helps you get the most for your money by showing you when it’s most advantageous to fly. Curate your own travel experiences for less with “Explore”. Expert travel hacks to fuel your next adventure are a click away with “Discover” by momondo. Set up our “Price Alerts” to track fare changes and book when prices are at their lowest point.
How does momondo find its flight prices?
We compare prices from 700+ competitors to help you find the price that works best for you. momondo operates in over 30 international markets, bringing you access to a wide range of fares and deals. Search for your travel using momondo for a diverse range of options from airlines and OTAs.

Alexandria

College Park

Springfield

Fairfax

Arlington

Gettysburg

Linthicum Heights

National Harbor

Front Royal

Winchester

Ellicott City

Cambridge

Glen Burnie

Westminster

Laurel

Lutherville Timonium

Ashburn

Lexington Park

Leesburg

Owings Mills

Why use momondo?

Why should I use momondo to find a flight deal from Belfast to Washington, D.C.?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Belfast to Washington, D.C. . Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Belfast to Washington, D.C. with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Belfast to Washington, D.C. flights to just show those with flexible booking policies.

How can momondo help me find flights from Belfast to Washington, D.C.?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Washington, D.C. from Belfast.

I’m not ready to book a flight from Belfast to Washington, D.C. right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Belfast to Washington, D.C. flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.