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.

£455 Cheap Flights from Belfast to Washington, D.C. in 2026

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.

06:20 - 22:15BFS Belfast Intl-BWI Baltimore/Washington

20h 55m2 stops London Gatwick Reykjavik Keflavik Intl

23:20 - 18:35BWI Baltimore/Washington-BFS Belfast Intl

14h 15m2 stops Reykjavik Keflavik Intl London Gatwick

£511Multiple Airlines

Sat, 10 Oct - Sat, 17 Oct

06:05 - 18:30BFS Belfast Intl-IAD Washington, D.C. Dulles Intl

17h 25m2 stops London Stansted Reykjavik Keflavik Intl

18:55 - 14:15IAD Washington, D.C. Dulles Intl-BFS Belfast Intl

14h 20m1 stop London Heathrow

£613Multiple Airlines

Mon, 23 Nov - Wed, 2 Dec

10:10 - 14:45BHD Belfast City-IAD Washington, D.C. Dulles Intl

33h 35m2 stops London Gatwick Lisbon Humberto Delgado

17:25 - 18:55IAD Washington, D.C. Dulles Intl-BHD Belfast City

20h 30m2 stops Lisbon Humberto Delgado London Gatwick

£618Multiple Airlines

Mon, 21 Dec - Sat, 9 Jan

10:15 - 14:45BFS Belfast Intl-IAD Washington, D.C. Dulles Intl

33h 30m2 stops London Gatwick Lisbon Humberto Delgado

17:25 - 17:50IAD Washington, D.C. Dulles Intl-BFS Belfast Intl

19h 25m2 stops Lisbon Humberto Delgado London Gatwick

£618Multiple Airlines

Mon, 21 Dec - Sat, 9 Jan

07:40 - 15:40BHD Belfast City-IAD Washington, D.C. Dulles Intl

13h 00m1 stop London Heathrow

21:45 - 14:05IAD Washington, D.C. Dulles Intl-BHD Belfast City

11h 20m1 stop London Heathrow

£641British Airways

Thu, 26 Nov - Thu, 3 Dec

08:50 - 17:05BHD Belfast City-BWI Baltimore/Washington

13h 15m1 stop London Heathrow

18:55 - 12:45BWI Baltimore/Washington-BHD Belfast City

12h 50m1 stop London Heathrow

£641British Airways

Thu, 26 Nov - Thu, 3 Dec

19:45 - 18:40BFS Belfast Intl-BWI Baltimore/Washington

27h 55m3 stops Newcastle upon Tyne Dublin Reykjavik Keflavik Intl

19:40 - 19:50BWI Baltimore/Washington-BFS Belfast Intl

19h 10m3 stops Reykjavik Keflavik Intl Kastrup Copenhagen Manchester

£646Multiple Airlines

Thu, 26 Nov - Thu, 3 Dec

11:40 - 19:55BHD Belfast City-IAD Washington, D.C. Dulles Intl

13h 15m1 stop London Heathrow

21:45 - 16:45IAD Washington, D.C. Dulles Intl-BHD Belfast City

14h 00m1 stop London Heathrow

£652British Airways

Mon, 21 Dec - Sat, 9 Jan

07:40 - 18:32BHD Belfast City-DCA Washington, D.C. Reagan-National

15h 52m2 stops London Heathrow Chicago O'Hare Intl

17:12 - 12:45DCA Washington, D.C. Reagan-National-BHD Belfast City

14h 33m2 stops New York John F Kennedy Intl London Heathrow

£659British Airways

Thu, 26 Nov - Thu, 3 Dec

19:45 - 18:40BFS Belfast Intl-BWI Baltimore/Washington

27h 55m3 stops Newcastle upon Tyne Dublin Reykjavik Keflavik Intl

19:40 - 18:55BWI Baltimore/Washington-BFS Belfast Intl

18h 15m2 stops Reykjavik Keflavik Intl London Gatwick

£659Multiple Airlines

Thu, 26 Nov - Thu, 3 Dec

Save money when you book flights with momondo

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customise your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

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

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

British Airways

26 Nov

BHD07:40Belfast City

13h 00m

1 stop

IAD15:40Washington, D.C. Dulles Intl

3 Dec

IAD21:45Washington, D.C. Dulles Intl

11h 20m

1 stop

BHD14:05Belfast City

£641

British Airways

21 Dec

BHD11:40Belfast City

13h 15m

1 stop

IAD19:55Washington, D.C. Dulles Intl

9 Jan

IAD21:45Washington, D.C. Dulles Intl

14h 00m

1 stop

BHD16:45Belfast City

£652

British Airways

26 Nov

BHD07:40Belfast City

15h 52m

2 stops

DCA18:32Washington, D.C. Reagan-National

3 Dec

DCA17:12Washington, D.C. Reagan-National

14h 33m

2 stops

BHD12:45Belfast City

£659

Virgin Atlantic flights from Belfast to Washington, D.C.

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

Virgin Atlantic

20 Sept

BHD09:45Belfast City

10h 50m

1 stop

IAD15:35Washington, D.C. Dulles Intl

17 Oct

IAD18:31Washington, D.C. Dulles Intl

17h 24m

2 stops

BHD16:55Belfast City

£674

Virgin Atlantic

21 Dec

BHD09:40Belfast City

11h 15m

1 stop

IAD15:55Washington, D.C. Dulles Intl

9 Jan

IAD18:30Washington, D.C. Dulles Intl

17h 20m

2 stops

BHD16:50Belfast City

£761

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

BelfastBaltimore

BFS Belfast Intl - BWI Baltimore/Washington

BFSBWI

Belfast Intl

Sat 10/10

06:20-22:15

2 stops20h 55m

Baltimore/Washington

Sat 17/10

23:20-18:35

2 stops14h 15m

£511

BelfastWashington, D.C.

BFS Belfast Intl - IAD Washington, D.C. Dulles Intl

BFSIAD

Belfast Intl

Mon 23/11

06:05-18:30

2 stops17h 25m

Washington, D.C. Dulles Intl

Wed 2/12

18:55-14:15

1 stop14h 20m

£613

BelfastWashington, D.C.

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

BHDIAD

Belfast City

Mon 21/12

10:10-14:45

2 stops33h 35m

Washington, D.C. Dulles Intl

Sat 9/1

17:25-18:55

2 stops20h 30m

£618

BelfastWashington, D.C.

BFS Belfast Intl - IAD Washington, D.C. Dulles Intl

BFSIAD

Belfast Intl

Mon 21/12

10:15-14:45

2 stops33h 30m

Washington, D.C. Dulles Intl

Sat 9/1

17:25-17:50

2 stops19h 25m

£618

Fastest return journey

BelfastWashington, D.C.

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

BHDIAD

Belfast City

Thu 26/11

07:40-15:40

1 stop13h 00m

Washington, D.C. Dulles Intl

Thu 3/12

21:45-14:05

1 stop11h 20m

£641

BelfastBaltimore

BHD Belfast City - BWI Baltimore/Washington

BHDBWI

Belfast City

Thu 26/11

08:50-17:05

1 stop13h 15m

Baltimore/Washington

Thu 3/12

18:55-12:45

1 stop12h 50m

£641

BelfastBaltimore

BFS Belfast Intl - BWI Baltimore/Washington

BFSBWI

Belfast Intl

Thu 26/11

19:45-18:40

3 stops27h 55m

Baltimore/Washington

Thu 3/12

19:40-19:50

3 stops19h 10m

£646

BelfastWashington, D.C.

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

BHDIAD

Belfast City

Mon 21/12

11:40-19:55

1 stop13h 15m

Washington, D.C. Dulles Intl

Sat 9/1

21:45-16:45

1 stop14h 00m

£652

BelfastWashington, D.C.

BHD Belfast City - DCA Washington, D.C. Reagan-National

BHDDCA

Belfast City

Thu 26/11

07:40-18:32

2 stops15h 52m

Washington, D.C. Reagan-National

Thu 3/12

17:12-12:45

2 stops14h 33m

£659

BelfastBaltimore

BFS Belfast Intl - BWI Baltimore/Washington

BFSBWI

Belfast Intl

Thu 26/11

19:45-18:40

3 stops27h 55m

Baltimore/Washington

Thu 3/12

19:40-18:55

2 stops18h 15m

£659

Flights are sorted by cheapest return flights first.

Showing 1-10 of 15 resultsSorted by cheapest first

How to get the cheapest flight ticket from Belfast to Washington, D.C.

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from Belfast to Washington, D.C.?

British Airways is the most popular carrier operating from Belfast to Washington, D.C.

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	£455
Fastest flight time	13h 00m
Direct flights	None

The best one-way flight to Washington, D.C. from Belfast in the past 72 hours is £455. The best return flight deal from Belfast to Washington, D.C. found on momondo in the last 72 hours is £511.

The fastest flight from Belfast to Washington, D.C. takes 13h 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 13h 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.

Alexandria

College Park

Arlington

Springfield

Fairfax

Gettysburg

Linthicum Heights

National Harbor

Ellicott City

Cambridge

Glen Burnie

Westminster

Laurel

Lutherville Timonium

Lexington Park

Woodbridge

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

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.

Start using Trips

Find my bookings

Get notified when prices go down

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

1 adult

Sat 26/9

Sat 3/10

Email me momondo's favourite deals

By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States

Nearby airports

Cabin classes

Other United States destinations

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 £455

This is the cheapest one-way 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 9/9. 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

Trusted and free

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

Virgin Atlantic flights from Belfast to Washington, D.C.

Our best Virgin Atlantic 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.

See travel insights to Washington, D.C. from

How to get the cheapest flight ticket from Belfast to Washington, D.C.

What is the cheapest airline that flies from Belfast to Washington, D.C.?

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.

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

Complete your trip to Washington, D.C.

Explore popular destinations other users love

According to popular flight searches on momondo this year