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.

£353 Cheap Flights from Belfast to Washington, D.C. in 2026

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13:50 - 17:00

BFS

IAD

32h 10m

2 stops

20:20 - 22:50

IAD

BFS

21h 30m

2 stops

£684Multiple Airlines

Thu, 2 Apr - Thu, 9 Apr

09:15 - 16:35

BHD

IAD

11h 20m

1 stop

19:20 - 10:20

IAD

BHD

11h 00m

1 stop

£733British Airways

Wed, 18 Mar - Sun, 22 Mar

11:25 - 20:55

BHD

IAD

13h 30m

1 stop

14:03 - 10:20

IAD

BHD

16h 17m

2 stops

£743British Airways

Wed, 18 Mar - Sun, 22 Mar

10:40 - 19:55

BHD

IAD

14h 15m

1 stop

16:46 - 14:15

IAD

BHD

17h 29m

2 stops

£752British Airways

Thu, 5 Mar - Mon, 9 Mar

11:05 - 19:55

BHD

IAD

13h 50m

1 stop

14:03 - 10:40

IAD

BHD

16h 37m

2 stops

£753British Airways

Thu, 5 Mar - Mon, 9 Mar

06:35 - 19:55

BHD

IAD

18h 20m

1 stop

22:45 - 14:15

IAD

BHD

11h 30m

1 stop

£754British Airways

Thu, 5 Mar - Mon, 9 Mar

06:30 - 20:20

BHD

IAD

18h 50m

1 stop

17:40 - 15:30

IAD

BHD

16h 50m

1 stop

£840American Airlines

Mon, 25 May - Thu, 28 May

09:40 - 20:20

BHD

IAD

15h 40m

1 stop

22:25 - 15:30

IAD

BHD

12h 05m

1 stop

£862American Airlines

Mon, 25 May - Fri, 29 May

09:50 - 20:45

BHD

DCA

15h 55m

2 stops

12:27 - 09:20

DCA

BHD

15h 53m

2 stops

£1,312KLM

Mon, 25 May - Thu, 28 May

09:50 - 22:03

BHD

DCA

17h 13m

2 stops

12:00 - 09:20

DCA

BHD

16h 20m

2 stops

£1,343KLM

Tue, 26 May - Sat, 30 May

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

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

British Airways

18 Mar

BHD09:15Belfast City

11h 20m

1 stop

IAD16:35Washington, D.C. Dulles Intl

22 Mar

IAD19:20Washington, D.C. Dulles Intl

11h 00m

1 stop

BHD10:20Belfast City

£733

British Airways

18 Mar

BHD11:25Belfast City

13h 30m

1 stop

IAD20:55Washington, D.C. Dulles Intl

22 Mar

IAD14:03Washington, D.C. Dulles Intl

16h 17m

2 stops

BHD10:20Belfast City

£743

British Airways

5 Mar

BHD10:40Belfast City

14h 15m

1 stop

IAD19:55Washington, D.C. Dulles Intl

9 Mar

IAD16:46Washington, D.C. Dulles Intl

17h 29m

2 stops

BHD14:15Belfast City

£752

American Airlines flights from Belfast to Washington, D.C.

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

American Airlines

25 May

BHD06:30Belfast City

18h 50m

1 stop

IAD20:20Washington, D.C. Dulles Intl

28 May

IAD17:40Washington, D.C. Dulles Intl

16h 50m

1 stop

BHD15:30Belfast City

£840

American Airlines

25 May

BHD09:40Belfast City

15h 40m

1 stop

IAD20:20Washington, D.C. Dulles Intl

29 May

IAD22:25Washington, D.C. Dulles Intl

12h 05m

1 stop

BHD15:30Belfast City

£862

American Airlines

25 May

BHD09:40Belfast City

15h 00m

1 stop

BWI19:40Baltimore/Washington

29 May

BWI21:30Baltimore/Washington

13h 00m

1 stop

BHD15:30Belfast City

£872

Fly from

Fly to

Route

Depart

Return

Price

BelfastWashington, D.C.

BFS - IAD

BFSIAD

Belfast Intl

Thu 2/4

13:50-17:00

2 stops32h 10m

Washington, D.C. Dulles Intl

Thu 9/4

20:20-22:50

2 stops21h 30m

£684

BelfastWashington, D.C.

BHD - IAD

BHDIAD

Belfast City

Wed 18/3

09:15-16:35

1 stop11h 20m

Washington, D.C. Dulles Intl

Sun 22/3

19:20-10:20

1 stop11h 00m

£733

BelfastWashington, D.C.

BHD - IAD

BHDIAD

Belfast City

Wed 18/3

11:25-20:55

1 stop13h 30m

Washington, D.C. Dulles Intl

Sun 22/3

14:03-10:20

2 stops16h 17m

£743

BelfastWashington, D.C.

BHD - IAD

BHDIAD

Belfast City

Thu 5/3

10:40-19:55

1 stop14h 15m

Washington, D.C. Dulles Intl

Mon 9/3

16:46-14:15

2 stops17h 29m

£752

BelfastWashington, D.C.

BHD - IAD

BHDIAD

Belfast City

Thu 5/3

11:05-19:55

1 stop13h 50m

Washington, D.C. Dulles Intl

Mon 9/3

14:03-10:40

2 stops16h 37m

£753

BelfastWashington, D.C.

BHD - IAD

BHDIAD

Belfast City

Thu 5/3

06:35-19:55

1 stop18h 20m

Washington, D.C. Dulles Intl

Mon 9/3

22:45-14:15

1 stop11h 30m

£754

BelfastWashington, D.C.

BHD - IAD

BHDIAD

Belfast City

Mon 25/5

06:30-20:20

1 stop18h 50m

Washington, D.C. Dulles Intl

Thu 28/5

17:40-15:30

1 stop16h 50m

£840

BelfastWashington, D.C.

BHD - IAD

BHDIAD

Belfast City

Mon 25/5

09:40-20:20

1 stop15h 40m

Washington, D.C. Dulles Intl

Fri 29/5

22:25-15:30

1 stop12h 05m

£862

BelfastWashington, D.C.

BHD - DCA

BHDDCA

Belfast City

Mon 25/5

09:50-20:45

2 stops15h 55m

Washington, D.C. Reagan-National

Thu 28/5

12:27-09:20

2 stops15h 53m

£1,312

BelfastWashington, D.C.

BHD - DCA

BHDDCA

Belfast City

Tue 26/5

09:50-22:03

2 stops17h 13m

Washington, D.C. Reagan-National

Sat 30/5

12:00-09:20

2 stops16h 20m

£1,343

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 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.

Fastest flight time	11h 20m
Direct flights	None

The fastest flight from Belfast to Washington, D.C. takes 11h 20m

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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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 11h 20m.
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.

Laurel

College Park

Fairfax

Arlington

Linthicum Heights

Alexandria

Glen Burnie

Lutherville Timonium

Ellicott City

Cambridge

Lexington Park

Westminster

Woodbridge

Bethesda

Rockville

Silver Spring

Owings Mills

Landover

National Harbor

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.

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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 £353

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 17/6. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names, great deals

Big names, great deals

Filter for what you want

Filter for what you want

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Trusted and free

Price Alerts

Price Alerts

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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

American Airlines flights from Belfast to Washington, D.C.

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

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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

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

Fastest flight time

Direct flights

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

Why use momondo?

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

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

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

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

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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