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.

£278 Cheap Flights from Belfast to Washington, D.C. in 2026

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Round-trip

One-way

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10:05 - 20:20

BHD

IAD

15h 15m

1 stop

22:25 - 17:40

IAD

BHD

14h 15m

1 stop

£595British Airways

Wed, 2 Sep - Sun, 6 Sep

20:25 - 17:30

BHD

IAD

26h 05m

1 stop

22:25 - 15:20

IAD

BHD

11h 55m

1 stop

£601British Airways

Tue, 23 Jun - Tue, 11 Aug

09:40 - 20:10

BHD

DCA

15h 30m

2 stops

18:23 - 15:20

DCA

BHD

15h 57m

2 stops

£602American Airlines

Tue, 23 Jun - Tue, 11 Aug

09:40 - 00:13

BHD

IAD

19h 33m

2 stops

22:25 - 15:20

IAD

BHD

11h 55m

1 stop

£602American Airlines

Tue, 23 Jun - Tue, 11 Aug

10:05 - 22:55

BHD

IAD

17h 50m

2 stops

19:15 - 11:55

IAD

BHD

11h 40m

2 stops

£619British Airways

Wed, 2 Sep - Sun, 6 Sep

09:40 - 15:50

BHD

IAD

11h 10m

1 stop

21:30 - 15:20

IAD

BHD

12h 50m

1 stop

£630British Airways

Tue, 23 Jun - Tue, 11 Aug

16:05 - 15:30

BHD

IAD

28h 25m

2 stops

19:15 - 14:35

IAD

BHD

14h 20m

1 stop

£638British Airways

Wed, 2 Sep - Sun, 6 Sep

20:35 - 20:24

BFS

IAD

28h 49m

3 stops

20:30 - 22:35

IAD

BFS

21h 05m

2 stops

£698Multiple Airlines

Mon, 20 Jul - Mon, 27 Jul

06:30 - 21:26

BFS

IAD

19h 56m

2 stops

20:30 - 22:35

IAD

BFS

21h 05m

2 stops

£703Multiple Airlines

Mon, 20 Jul - Mon, 27 Jul

09:50 - 22:24

BHD

BWI

17h 34m

2 stops

12:30 - 09:20

BWI

BHD

15h 50m

2 stops

£758Delta

Tue, 23 Jun - Tue, 11 Aug

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

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

British Airways

2 Sept

BHD10:05Belfast City

15h 15m

1 stop

IAD20:20Washington, D.C. Dulles Intl

6 Sept

IAD22:25Washington, D.C. Dulles Intl

14h 15m

1 stop

BHD17:40Belfast City

£595

British Airways

23 Jun

BHD20:25Belfast City

26h 05m

1 stop

IAD17:30Washington, D.C. Dulles Intl

11 Aug

IAD22:25Washington, D.C. Dulles Intl

11h 55m

1 stop

BHD15:20Belfast City

£601

British Airways

2 Sept

BHD10:05Belfast City

17h 50m

2 stops

IAD22:55Washington, D.C. Dulles Intl

6 Sept

IAD19:15Washington, D.C. Dulles Intl

11h 40m

2 stops

BHD11:55Belfast City

£619

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

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

American Airlines

23 Jun

BHD09:40Belfast City

19h 33m

2 stops

IAD00:13Washington, D.C. Dulles Intl

11 Aug

IAD22:25Washington, D.C. Dulles Intl

11h 55m

1 stop

BHD15:20Belfast City

£602

American Airlines

23 Jun

BHD16:25Belfast City

30h 05m

1 stop

IAD17:30Washington, D.C. Dulles Intl

11 Aug

IAD17:34Washington, D.C. Dulles Intl

16h 46m

2 stops

BHD15:20Belfast City

£690

American Airlines

23 Jun

BHD09:40Belfast City

15h 30m

2 stops

DCA20:10Washington, D.C. Reagan-National

11 Aug

DCA19:14Washington, D.C. Reagan-National

15h 06m

2 stops

BHD15:20Belfast City

£694

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

BelfastWashington, D.C.

BHD - IAD

BHDIAD

Belfast City

Wed 2/9

10:05-20:20

1 stop15h 15m

Washington, D.C. Dulles Intl

Sun 6/9

22:25-17:40

1 stop14h 15m

£595

BelfastWashington, D.C.

BHD - IAD

BHDIAD

Belfast City

Tue 23/6

20:25-17:30

1 stop26h 05m

Washington, D.C. Dulles Intl

Tue 11/8

22:25-15:20

1 stop11h 55m

£601

BelfastWashington, D.C.

BHD - DCA

BHDDCA

Belfast City

Tue 23/6

09:40-20:10

2 stops15h 30m

Washington, D.C. Reagan-National

Tue 11/8

18:23-15:20

2 stops15h 57m

£602

BelfastWashington, D.C.

BHD - IAD

BHDIAD

Belfast City

Tue 23/6

09:40-00:13

2 stops19h 33m

Washington, D.C. Dulles Intl

Tue 11/8

22:25-15:20

1 stop11h 55m

£602

BelfastWashington, D.C.

BHD - IAD

BHDIAD

Belfast City

Wed 2/9

10:05-22:55

2 stops17h 50m

Washington, D.C. Dulles Intl

Sun 6/9

19:15-11:55

2 stops11h 40m

£619

Fastest return journey

BelfastWashington, D.C.

BHD - IAD

BHDIAD

Belfast City

Tue 23/6

09:40-15:50

1 stop11h 10m

Washington, D.C. Dulles Intl

Tue 11/8

21:30-15:20

1 stop12h 50m

£630

BelfastWashington, D.C.

BHD - IAD

BHDIAD

Belfast City

Wed 2/9

16:05-15:30

2 stops28h 25m

Washington, D.C. Dulles Intl

Sun 6/9

19:15-14:35

1 stop14h 20m

£638

BelfastWashington, D.C.

BFS - IAD

BFSIAD

Belfast Intl

Mon 20/7

20:35-20:24

3 stops28h 49m

Washington, D.C. Dulles Intl

Mon 27/7

20:30-22:35

2 stops21h 05m

£698

BelfastWashington, D.C.

BFS - IAD

BFSIAD

Belfast Intl

Mon 20/7

06:30-21:26

2 stops19h 56m

Washington, D.C. Dulles Intl

Mon 27/7

20:30-22:35

2 stops21h 05m

£703

BelfastBaltimore

BHD - BWI

BHDBWI

Belfast City

Tue 23/6

09:50-22:24

2 stops17h 34m

Baltimore/Washington

Tue 11/8

12:30-09:20

2 stops15h 50m

£758

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 American Airlines 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	10h 55m
Direct flights	None

The fastest flight from Belfast to Washington, D.C. takes 10h 55m

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 10h 55m.
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

Glen Burnie

Ellicott City

Cambridge

Laurel

Lutherville Timonium

Westminster

Lexington Park

Woodbridge

Bethesda

Owings Mills

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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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 £278

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 5/8. 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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Price Alerts

Price Alerts

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

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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

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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