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.

£344 Cheap Flights from Belfast Intl Airport to Washington, D.C. Dulles Intl Airport in 2026

1 adult

0 bags

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

Round-trip

One-way

Cheap return flights

Enter your travel dates to find the best prices.

15:35 - 17:00

BFS

IAD

30h 25m

2 stops

20:20 - 23:15

IAD

BFS

21h 55m

2 stops

£768Multiple Airlines

Thu, 11 Jun - Wed, 17 Jun

06:40 - 19:00

BFS

IAD

17h 20m

2 stops

17:15 - 18:55

IAD

BFS

20h 40m

2 stops

£781Multiple Airlines

Thu, 25 Jun - Thu, 2 Jul

06:10 - 20:29

BFS

IAD

19h 19m

3 stops

08:18 - 19:15

IAD

BFS

29h 57m

3 stops

£782Multiple Airlines

Thu, 11 Jun - Wed, 17 Jun

06:10 - 20:29

BFS

IAD

19h 19m

2 stops

08:18 - 19:15

IAD

BFS

29h 57m

3 stops

£821Multiple Airlines

Thu, 11 Jun - Wed, 17 Jun

08:25 - 20:29

BFS

IAD

17h 04m

2 stops

20:30 - 20:40

IAD

BFS

19h 10m

2 stops

£830Multiple Airlines

Sun, 24 May - Mon, 7 Sep

06:40 - 20:24

BFS

IAD

18h 44m

2 stops

09:55 - 11:50

IAD

BFS

20h 55m

3 stops

£908Multiple Airlines

Thu, 25 Jun - Thu, 2 Jul

06:40 - 07:44

BFS

IAD

30h 04m

3 stops

09:55 - 11:50

IAD

BFS

20h 55m

3 stops

£911Multiple Airlines

Thu, 25 Jun - Thu, 2 Jul

06:10 - 12:53

BFS

IAD

35h 43m

2 stops

21:45 - 19:35

IAD

BFS

16h 50m

1 stop

£1,023Multiple Airlines

Thu, 11 Jun - Wed, 17 Jun

20:45 - 15:10

BFS

IAD

47h 25m

2 stops

18:15 - 19:05

IAD

BFS

19h 50m

1 stop

£1,057Multiple Airlines

Sun, 24 May - Mon, 7 Sep

momondo Fare Finder

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

BelfastWashington, D.C.

BFS - IAD

BFSIAD

Belfast Intl

Thu 11/6

15:35-17:00

2 stops30h 25m

Washington, D.C. Dulles Intl

Wed 17/6

20:20-23:15

2 stops21h 55m

£768

BelfastWashington, D.C.

BFS - IAD

BFSIAD

Belfast Intl

Thu 25/6

06:40-19:00

2 stops17h 20m

Washington, D.C. Dulles Intl

Thu 2/7

17:15-18:55

2 stops20h 40m

£781

BelfastWashington, D.C.

BFS - IAD

BFSIAD

Belfast Intl

Thu 11/6

06:10-20:29

3 stops19h 19m

Washington, D.C. Dulles Intl

Wed 17/6

08:18-19:15

3 stops29h 57m

£782

BelfastWashington, D.C.

BFS - IAD

BFSIAD

Belfast Intl

Thu 11/6

06:10-20:29

2 stops19h 19m

Washington, D.C. Dulles Intl

Wed 17/6

08:18-19:15

3 stops29h 57m

£821

Fastest return journey

BelfastWashington, D.C.

BFS - IAD

BFSIAD

Belfast Intl

Sun 24/5

08:25-20:29

2 stops17h 04m

Washington, D.C. Dulles Intl

Mon 7/9

20:30-20:40

2 stops19h 10m

£830

BelfastWashington, D.C.

BFS - IAD

BFSIAD

Belfast Intl

Thu 25/6

06:40-20:24

2 stops18h 44m

Washington, D.C. Dulles Intl

Thu 2/7

09:55-11:50

3 stops20h 55m

£908

BelfastWashington, D.C.

BFS - IAD

BFSIAD

Belfast Intl

Thu 25/6

06:40-07:44

3 stops30h 04m

Washington, D.C. Dulles Intl

Thu 2/7

09:55-11:50

3 stops20h 55m

£911

BelfastWashington, D.C.

BFS - IAD

BFSIAD

Belfast Intl

Thu 11/6

06:10-12:53

2 stops35h 43m

Washington, D.C. Dulles Intl

Wed 17/6

21:45-19:35

1 stop16h 50m

£1,023

BelfastWashington, D.C.

BFS - IAD

BFSIAD

Belfast Intl

Sun 24/5

20:45-15:10

2 stops47h 25m

Washington, D.C. Dulles Intl

Mon 7/9

18:15-19:05

1 stop19h 50m

£1,057

Cheapest one-way

BelfastWashington, D.C.

BFS - IAD

BFSIAD

Belfast Intl

Mon 24/8

17:15-15:10

3 stops50h 55m

£344

Flights are sorted by cheapest return flights first.

Showing 1-10 of 19 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	17h 04m
Direct flights	None

The fastest flight from Belfast Intl Airport to Washington, D.C. Dulles Intl Airport takes 17h 04m

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 17h 04m.
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.

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College Park

Springfield

Fairfax

Arlington

Gettysburg

Linthicum Heights

Front Royal

Glen Burnie

Winchester

Laurel

Ellicott City

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Lexington Park

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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.