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.

£333 Cheap Flights from Belfast to Washington, D.C. in 2026

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

Return

One-way

Last minute

Cheap return flights

Enter your travel dates to find the best prices.

21:05 - 19:00

BFS

IAD

26h 55m

3 stops

20:30 - 22:40

IAD

BFS

21h 10m

2 stops

£668Multiple Airlines

Sat, 5 Sep - Sat, 12 Sep

08:20 - 21:48

BFS

DCA

18h 28m

3 stops

12:40 - 19:15

DCA

BFS

25h 35m

3 stops

£669Multiple Airlines

Thu, 13 Aug - Wed, 19 Aug

09:35 - 22:58

BHD

BWI

18h 23m

2 stops

11:59 - 13:35

BWI

BHD

20h 36m

2 stops

£673Iberia

Thu, 13 Aug - Wed, 19 Aug

20:10 - 15:30

BHD

IAD

24h 20m

2 stops

13:23 - 10:45

IAD

BHD

16h 22m

2 stops

£675British Airways

Fri, 4 Sep - Tue, 8 Sep

20:10 - 15:30

BHD

IAD

24h 20m

2 stops

17:45 - 09:00

IAD

BHD

10h 15m

1 stop

£677British Airways

Fri, 4 Sep - Tue, 8 Sep

20:10 - 15:30

BHD

IAD

24h 20m

2 stops

17:45 - 09:00

IAD

BHD

10h 15m

1 stop

£678British Airways

Fri, 4 Sep - Tue, 8 Sep

11:05 - 18:45

BHD

BWI

12h 40m

1 stop

14:26 - 17:25

BWI

BHD

21h 59m

2 stops

£682British Airways

Thu, 5 Nov - Mon, 9 Nov

09:35 - 20:20

BHD

IAD

15h 45m

1 stop

17:45 - 10:45

IAD

BHD

12h 00m

1 stop

£682British Airways

Fri, 4 Sep - Tue, 8 Sep

12:45 - 23:33

BHD

DCA

15h 48m

2 stops

18:23 - 13:35

DCA

BHD

14h 12m

2 stops

£684British Airways

Thu, 13 Aug - Wed, 19 Aug

09:50 - 20:33

BHD

DCA

15h 43m

2 stops

12:55 - 09:20

DCA

BHD

15h 25m

2 stops

£824KLM

Fri, 14 Aug - Wed, 19 Aug

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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

4 Sept

BHD20:10Belfast City

24h 20m

2 stops

IAD15:30Washington, D.C. Dulles Intl

8 Sept

IAD13:23Washington, D.C. Dulles Intl

16h 22m

2 stops

BHD10:45Belfast City

£675

British Airways

4 Sept

BHD20:10Belfast City

24h 20m

2 stops

IAD15:30Washington, D.C. Dulles Intl

8 Sept

IAD17:45Washington, D.C. Dulles Intl

10h 15m

1 stop

BHD09:00Belfast City

£677

British Airways

4 Sept

BHD20:10Belfast City

24h 20m

2 stops

IAD15:30Washington, D.C. Dulles Intl

8 Sept

IAD17:45Washington, D.C. Dulles Intl

10h 15m

1 stop

BHD09:00Belfast City

£678

KLM flights from Belfast to Washington, D.C.

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

KLM

14 Aug

BHD09:50Belfast City

10h 45m

1 stop

IAD15:35Washington, D.C. Dulles Intl

19 Aug

IAD18:10Washington, D.C. Dulles Intl

10h 10m

1 stop

BHD09:20Belfast City

£801

KLM

13 Aug

BHD09:50Belfast City

10h 45m

1 stop

IAD15:35Washington, D.C. Dulles Intl

19 Aug

IAD18:10Washington, D.C. Dulles Intl

10h 10m

1 stop

BHD09:20Belfast City

£802

KLM

13 Aug

BHD17:30Belfast City

27h 05m

1 stop

IAD15:35Washington, D.C. Dulles Intl

19 Aug

IAD18:10Washington, D.C. Dulles Intl

10h 10m

1 stop

BHD09:20Belfast City

£804

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

BelfastWashington, D.C.

BFS - IAD

BFSIAD

Belfast Intl

Sat 5/9

21:05-19:00

3 stops26h 55m

Washington, D.C. Dulles Intl

Sat 12/9

20:30-22:40

2 stops21h 10m

£668

BelfastWashington, D.C.

BFS - DCA

BFSDCA

Belfast Intl

Thu 13/8

08:20-21:48

3 stops18h 28m

Washington, D.C. Reagan-National

Wed 19/8

12:40-19:15

3 stops25h 35m

£669

BelfastBaltimore

BHD - BWI

BHDBWI

Belfast City

Thu 13/8

09:35-22:58

2 stops18h 23m

Baltimore/Washington

Wed 19/8

11:59-13:35

2 stops20h 36m

£673

BelfastWashington, D.C.

BHD - IAD

BHDIAD

Belfast City

Fri 4/9

20:10-15:30

2 stops24h 20m

Washington, D.C. Dulles Intl

Tue 8/9

13:23-10:45

2 stops16h 22m

£675

BelfastWashington, D.C.

BHD - IAD

BHDIAD

Belfast City

Fri 4/9

20:10-15:30

2 stops24h 20m

Washington, D.C. Dulles Intl

Tue 8/9

17:45-09:00

1 stop10h 15m

£677

BelfastWashington, D.C.

BHD - IAD

BHDIAD

Belfast City

Fri 4/9

20:10-15:30

2 stops24h 20m

Washington, D.C. Dulles Intl

Tue 8/9

17:45-09:00

1 stop10h 15m

£678

BelfastBaltimore

BHD - BWI

BHDBWI

Belfast City

Thu 5/11

11:05-18:45

1 stop12h 40m

Baltimore/Washington

Mon 9/11

14:26-17:25

2 stops21h 59m

£682

Fastest return journey

BelfastWashington, D.C.

BHD - IAD

BHDIAD

Belfast City

Fri 4/9

09:35-20:20

1 stop15h 45m

Washington, D.C. Dulles Intl

Tue 8/9

17:45-10:45

1 stop12h 00m

£682

BelfastWashington, D.C.

BHD - DCA

BHDDCA

Belfast City

Thu 13/8

12:45-23:33

2 stops15h 48m

Washington, D.C. Reagan-National

Wed 19/8

18:23-13:35

2 stops14h 12m

£684

BelfastWashington, D.C.

BHD - DCA

BHDDCA

Belfast City

Fri 14/8

09:50-20:33

2 stops15h 43m

Washington, D.C. Reagan-National

Wed 19/8

12:55-09:20

2 stops15h 25m

£824

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 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 and KLM are the most popular carriers 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.

Fastest flight time	14h 40m
Direct flights	None

The fastest flight from Belfast to Washington, D.C. takes 14h 40m

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

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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 14h 40m.
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

Springfield

Fairfax

Arlington

Gettysburg

Linthicum Heights

National Harbor

Ellicott City

Cambridge

Glen Burnie

Westminster

Laurel

Lutherville Timonium

Lexington Park

Owings Mills

Woodbridge

Bethesda

Silver Spring

Rockville

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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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 £333

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 5/11. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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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

KLM flights from Belfast to Washington, D.C.

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

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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

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.

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