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

Confirm your travel details to search for the latest offers for flights from Belfast to Washington, D.C. . While browsing offers there will be the option to toggle “Price Alerts”. You’ll then receive updates when prices for the flight route increase or decrease.

How can I save money on flights from Belfast to Washington, D.C. 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.

When did momondo last update prices for flights from Belfast to Washington, D.C.?

Prices for flights from Belfast to Washington, D.C. refresh daily.

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

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 to Washington, D.C..

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

The required travel and health documents for your Washington, D.C. trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Washington, D.C.. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

£652 Cheap Flights from Belfast to Washington, D.C. in 2026/27

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

Return

One-way

Cheap return flights

Enter your travel dates to find the best prices.

10:40 - 20:30BHD Belfast City-IAD Washington, D.C. Dulles Intl

38h 50m3 stops Liverpool J. Lennon Barcelona-El Prat Lisbon Humberto Delgado

17:25 - 13:55IAD Washington, D.C. Dulles Intl-BHD Belfast City

39h 30m3 stops Lisbon Humberto Delgado Madrid Barajas Manchester

£652Multiple Airlines

Thu, 12 Nov - Mon, 16 Nov

06:30 - 15:40BHD Belfast City-IAD Washington, D.C. Dulles Intl

14h 10m1 stop London Heathrow

21:45 - 15:55IAD Washington, D.C. Dulles Intl-BHD Belfast City

13h 10m1 stop London Heathrow

£695British Airways

Thu, 12 Nov - Mon, 16 Nov

20:00 - 15:40BHD Belfast City-IAD Washington, D.C. Dulles Intl

24h 40m1 stop London Heathrow

21:45 - 14:15IAD Washington, D.C. Dulles Intl-BHD Belfast City

11h 30m1 stop London Heathrow

£702British Airways

Thu, 26 Nov - Mon, 30 Nov

09:40 - 15:55BHD Belfast City-IAD Washington, D.C. Dulles Intl

11h 15m1 stop Amsterdam Schiphol

12:35 - 09:10IAD Washington, D.C. Dulles Intl-BHD Belfast City

15h 35m2 stops New York John F Kennedy Intl Amsterdam Schiphol

£713KLM

Thu, 12 Nov - Mon, 16 Nov

09:40 - 15:55BHD Belfast City-IAD Washington, D.C. Dulles Intl

11h 15m1 stop Amsterdam Schiphol

18:20 - 16:45IAD Washington, D.C. Dulles Intl-BHD Belfast City

17h 25m2 stops New York John F Kennedy Intl Amsterdam Schiphol

£714Delta

Thu, 12 Nov - Mon, 16 Nov

09:40 - 23:21BHD Belfast City-IAD Washington, D.C. Dulles Intl

18h 41m2 stops Amsterdam Schiphol Detroit Metropolitan Wayne County

12:35 - 09:10IAD Washington, D.C. Dulles Intl-BHD Belfast City

15h 35m2 stops New York John F Kennedy Intl Amsterdam Schiphol

£717KLM

Thu, 12 Nov - Mon, 16 Nov

15:25 - 16:20BHD Belfast City-IAD Washington, D.C. Dulles Intl

29h 55m2 stops London Heathrow Madrid Barajas

21:45 - 17:25IAD Washington, D.C. Dulles Intl-BHD Belfast City

14h 40m1 stop London Heathrow

£719British Airways

Thu, 21 Jan - Mon, 25 Jan

15:25 - 16:20BHD Belfast City-IAD Washington, D.C. Dulles Intl

29h 55m2 stops London Heathrow Madrid Barajas

21:45 - 17:25IAD Washington, D.C. Dulles Intl-BHD Belfast City

14h 40m1 stop London Heathrow

£720British Airways

Thu, 21 Jan - Mon, 25 Jan

09:40 - 21:26BHD Belfast City-IAD Washington, D.C. Dulles Intl

16h 46m2 stops Amsterdam Schiphol Atlanta Hartsfield-Jackson

12:35 - 09:10IAD Washington, D.C. Dulles Intl-BHD Belfast City

15h 35m2 stops New York John F Kennedy Intl Amsterdam Schiphol

£720Delta

Thu, 26 Nov - Mon, 30 Nov

17:50 - 16:20BHD Belfast City-IAD Washington, D.C. Dulles Intl

27h 30m2 stops London Heathrow Madrid Barajas

19:14 - 15:55IAD Washington, D.C. Dulles Intl-BHD Belfast City

15h 41m2 stops Charlotte Douglas London Heathrow

£721British Airways

Thu, 21 Jan - Mon, 25 Jan

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British Airways flights from Belfast to Washington, D.C.

Our best British Airways deals on Belfast to Washington, D.C. flight tickets

British Airways

12 Nov

BHD06:30Belfast City

14h 10m

1 stop

IAD15:40Washington, D.C. Dulles Intl

16 Nov

IAD21:45Washington, D.C. Dulles Intl

13h 10m

1 stop

BHD15:55Belfast City

£695

British Airways

26 Nov

BHD20:00Belfast City

24h 40m

1 stop

IAD15:40Washington, D.C. Dulles Intl

30 Nov

IAD21:45Washington, D.C. Dulles Intl

11h 30m

1 stop

BHD14:15Belfast City

£702

British Airways

21 Jan

BHD15:25Belfast City

29h 55m

2 stops

IAD16:20Washington, D.C. Dulles Intl

25 Jan

IAD21:45Washington, D.C. Dulles Intl

14h 40m

1 stop

BHD17:25Belfast City

£719

KLM flights from Belfast to Washington, D.C.

Our best KLM deals on Belfast to Washington, D.C. flight tickets

KLM

12 Nov

BHD09:40Belfast City

11h 15m

1 stop

IAD15:55Washington, D.C. Dulles Intl

16 Nov

IAD12:35Washington, D.C. Dulles Intl

15h 35m

2 stops

BHD09:10Belfast City

£713

KLM

12 Nov

BHD09:40Belfast City

18h 41m

2 stops

IAD23:21Washington, D.C. Dulles Intl

16 Nov

IAD12:35Washington, D.C. Dulles Intl

15h 35m

2 stops

BHD09:10Belfast City

£717

momondo Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

BelfastWashington, D.C.

BHD Belfast City - IAD Washington, D.C. Dulles Intl

BHDIAD

Belfast City

Thu 12/11

10:40-20:30

3 stops38h 50m

Washington, D.C. Dulles Intl

Mon 16/11

17:25-13:55

3 stops39h 30m

£652

BelfastWashington, D.C.

BHD Belfast City - IAD Washington, D.C. Dulles Intl

BHDIAD

Belfast City

Thu 12/11

06:30-15:40

1 stop14h 10m

Washington, D.C. Dulles Intl

Mon 16/11

21:45-15:55

1 stop13h 10m

£695

BelfastWashington, D.C.

BHD Belfast City - IAD Washington, D.C. Dulles Intl

BHDIAD

Belfast City

Thu 26/11

20:00-15:40

1 stop24h 40m

Washington, D.C. Dulles Intl

Mon 30/11

21:45-14:15

1 stop11h 30m

£702

Fastest return journey

BelfastWashington, D.C.

BHD Belfast City - IAD Washington, D.C. Dulles Intl

BHDIAD

Belfast City

Thu 12/11

09:40-15:55

1 stop11h 15m

Washington, D.C. Dulles Intl

Mon 16/11

12:35-09:10

2 stops15h 35m

£713

BelfastWashington, D.C.

BHD Belfast City - IAD Washington, D.C. Dulles Intl

BHDIAD

Belfast City

Thu 12/11

09:40-15:55

1 stop11h 15m

Washington, D.C. Dulles Intl

Mon 16/11

18:20-16:45

2 stops17h 25m

£714

BelfastWashington, D.C.

BHD Belfast City - IAD Washington, D.C. Dulles Intl

BHDIAD

Belfast City

Thu 12/11

09:40-23:21

2 stops18h 41m

Washington, D.C. Dulles Intl

Mon 16/11

12:35-09:10

2 stops15h 35m

£717

BelfastWashington, D.C.

BHD Belfast City - IAD Washington, D.C. Dulles Intl

BHDIAD

Belfast City

Thu 21/1

15:25-16:20

2 stops29h 55m

Washington, D.C. Dulles Intl

Mon 25/1

21:45-17:25

1 stop14h 40m

£719

BelfastWashington, D.C.

BHD Belfast City - IAD Washington, D.C. Dulles Intl

BHDIAD

Belfast City

Thu 21/1

15:25-16:20

2 stops29h 55m

Washington, D.C. Dulles Intl

Mon 25/1

21:45-17:25

1 stop14h 40m

£720

BelfastWashington, D.C.

BHD Belfast City - IAD Washington, D.C. Dulles Intl

BHDIAD

Belfast City

Thu 26/11

09:40-21:26

2 stops16h 46m

Washington, D.C. Dulles Intl

Mon 30/11

12:35-09:10

2 stops15h 35m

£720

BelfastWashington, D.C.

BHD Belfast City - IAD Washington, D.C. Dulles Intl

BHDIAD

Belfast City

Thu 21/1

17:50-16:20

2 stops27h 30m

Washington, D.C. Dulles Intl

Mon 25/1

19:14-15:55

2 stops15h 41m

£721

Flights are sorted by cheapest return flights first.

Sorted by cheapest first

Cheap Belfast to Washington, D.C. flight deals and tips

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

Best price found	£652
Fastest flight time	15h 00m
Direct flights	None

The best flight deal from Belfast to Washington, D.C. found on momondo in the last 72 hours is £652

The fastest flight from Belfast to Washington, D.C. takes 15h 00m

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

Search flight deals

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

How far is Belfast to Washington, D.C. by plane?
Belfast and Washington, D.C. are 3373.5 mi apart from one another. By plane, this route typically takes 15h 00m.
When did momondo last update prices for flights from Belfast to Washington, D.C.?
Prices for flights from Belfast to Washington, D.C. refresh daily.
How old do you have to be to fly from Belfast to Washington, D.C.?
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 to Washington, D.C..
What documentation or ID do you need to fly to Washington, D.C.?
The required travel and health documents for your Washington, D.C. trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Washington, D.C.. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

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

How do I get Price Alerts for flights from Belfast to Washington, D.C.?
Confirm your travel details to search for the latest offers for flights from Belfast to Washington, D.C.. While browsing offers there will be the option to toggle “Price Alerts”. You’ll then receive updates when prices for the flight route increase or decrease.
How can I save money on flights from Belfast to Washington, D.C. 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

Springfield

Arlington

National Harbor

College Park

Fairfax

Lutherville Timonium

Linthicum Heights

Gettysburg

Ellicott City

Glen Burnie

Laurel

Woodbridge

Lexington Park

Bethesda

Silver Spring

Rockville

Landover

Why use momondo?

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

Finding the right flight to Washington, D.C. from Belfast is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Washington, D.C. quick and easy, saving you time and money.

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

Flights from Belfast to Washington, D.C. with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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?

If you are simply researching potential flights to Washington, D.C., momondo offers a useful price alert feature which will track prices for flights to Washington, D.C. from Belfast and alert you when they change.

An easier way to manage your Washington, D.C. trip

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Nearby airports

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Complete your trip

Feeling lucky

Fly into one of these airports located in Washington, D.C.

Washington, D.C. Reagan-National Airport

Washington, D.C. Dulles Intl Airport

Cheap flights from Belfast to Washington, D.C. from £652

This is the cheapest return flight price found by a momondo user in the last 72 hours by searching for a flight from Belfast to Washington, D.C. departing on 12/11. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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

Cheap return flights

Cheap one-way flights

Big names, great deals

Big names, great deals

Filter for what you want

Filter for what you want

Trusted and free

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Price Alerts

Price Alerts

British Airways flights from Belfast to Washington, D.C.

Our best British Airways deals on Belfast to Washington, D.C. flight tickets

KLM flights from Belfast to Washington, D.C.

Our best KLM deals on Belfast to Washington, D.C. flight tickets

momondo Fare Finder

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

Cheap Belfast to Washington, D.C. flight deals and tips

Best price found

Fastest flight time

Direct flights

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

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

Travelling to a place near Washington, D.C.?

Why use momondo?

An easier way to manage your Washington, D.C. trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United States

Fly into one of these airports located in Washington, D.C.

Airports listed have a maximum distance of 22.4 mi from Washington, D.C.

Cabin classes currently available on flights to Washington, D.C.

List of cabin classes available on flights landing in Washington, D.C.. Availability may vary depending on flight origin and airline.

Popular Cities in the United States

Popular flights according to clicks in the last 7 days on momondo

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