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.

£427 Cheap Flights from Belfast to Washington, D.C. in 2026

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

Round-trip

One-way

Cheap return flights

Enter your travel dates to find the best prices.

08:35 - 19:30

BFS

IAD

14h 55m

2 stops

20:40 - 21:50

IAD

BFS

21h 10m

2 stops

£440Multiple Airlines

Tue, 10 Mar - Tue, 17 Mar

06:30 - 19:30

BFS

IAD

17h 00m

2 stops

20:40 - 17:55

IAD

BFS

17h 15m

2 stops

£492Multiple Airlines

Wed, 11 Mar - Wed, 18 Mar

08:35 - 18:30

BFS

IAD

14h 55m

2 stops

19:40 - 20:10

IAD

BFS

19h 30m

2 stops

£506Multiple Airlines

Mon, 23 Feb - Sun, 1 Mar

07:50 - 14:35

BFS

IAD

35h 45m

3 stops

19:40 - 21:55

IAD

BFS

21h 15m

3 stops

£507Multiple Airlines

Mon, 23 Feb - Sun, 1 Mar

15:05 - 15:35

BHD

IAD

29h 30m

1 stop

22:45 - 14:15

IAD

BHD

11h 30m

1 stop

£530British Airways

Thu, 5 Mar - Mon, 9 Mar

11:30 - 19:55

BHD

IAD

13h 25m

1 stop

18:20 - 10:20

IAD

BHD

11h 00m

1 stop

£532British Airways

Mon, 23 Feb - Sun, 1 Mar

06:30 - 16:05

BHD

IAD

14h 35m

1 stop

19:52 - 16:50

IAD

BHD

39h 58m

2 stops

£537KLM

Sat, 21 Feb - Sat, 28 Feb

06:30 - 22:08

BHD

DCA

20h 38m

2 stops

17:00 - 21:00

DCA

BHD

23h 00m

2 stops

£540Delta

Mon, 23 Feb - Sun, 1 Mar

06:30 - 23:09

BHD

IAD

21h 39m

2 stops

12:24 - 16:50

IAD

BHD

23h 26m

2 stops

£540Delta

Mon, 23 Feb - Sun, 1 Mar

06:30 - 23:09

BHD

IAD

21h 39m

2 stops

19:52 - 16:50

IAD

BHD

39h 58m

2 stops

£547Virgin Atlantic

Sat, 21 Feb - Sat, 28 Feb

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

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

British Airways

23 Feb

BHD11:30Belfast City

13h 25m

1 stop

IAD19:55Washington, D.C. Dulles Intl

1 Mar

IAD18:20Washington, D.C. Dulles Intl

11h 00m

1 stop

BHD10:20Belfast City

£532

British Airways

5 Mar

BHD06:35Belfast City

14h 00m

1 stop

IAD15:35Washington, D.C. Dulles Intl

9 Mar

IAD22:45Washington, D.C. Dulles Intl

11h 30m

1 stop

BHD14:15Belfast City

£534

British Airways

5 Mar

BHD10:35Belfast City

13h 55m

2 stops

IAD19:30Washington, D.C. Dulles Intl

9 Mar

IAD22:45Washington, D.C. Dulles Intl

11h 30m

1 stop

BHD14:15Belfast City

£549

Delta flights from Belfast to Washington, D.C.

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

Delta

23 Feb

BHD06:30Belfast City

14h 35m

1 stop

IAD16:05Washington, D.C. Dulles Intl

1 Mar

IAD12:24Washington, D.C. Dulles Intl

23h 26m

2 stops

BHD16:50Belfast City

£537

Delta

23 Feb

BHD06:30Belfast City

21h 39m

2 stops

IAD23:09Washington, D.C. Dulles Intl

1 Mar

IAD12:24Washington, D.C. Dulles Intl

23h 26m

2 stops

BHD16:50Belfast City

£540

Delta

10 Feb

BHD17:20Belfast City

28h 09m

2 stops

DCA16:29Washington, D.C. Reagan-National

14 Feb

DCA10:59Washington, D.C. Reagan-National

24h 51m

2 stops

BHD16:50Belfast City

£1,191

Fly from

Fly to

Route

Depart

Return

Price

BelfastWashington, D.C.

BFS - IAD

BFSIAD

Belfast Intl

Tue 10/3

08:35-19:30

2 stops14h 55m

Washington, D.C. Dulles Intl

Tue 17/3

20:40-21:50

2 stops21h 10m

£440

BelfastWashington, D.C.

BFS - IAD

BFSIAD

Belfast Intl

Wed 11/3

06:30-19:30

2 stops17h 00m

Washington, D.C. Dulles Intl

Wed 18/3

20:40-17:55

2 stops17h 15m

£492

BelfastWashington, D.C.

BFS - IAD

BFSIAD

Belfast Intl

Mon 23/2

08:35-18:30

2 stops14h 55m

Washington, D.C. Dulles Intl

Sun 1/3

19:40-20:10

2 stops19h 30m

£506

BelfastWashington, D.C.

BFS - IAD

BFSIAD

Belfast Intl

Mon 23/2

07:50-14:35

3 stops35h 45m

Washington, D.C. Dulles Intl

Sun 1/3

19:40-21:55

3 stops21h 15m

£507

BelfastWashington, D.C.

BHD - IAD

BHDIAD

Belfast City

Thu 5/3

15:05-15:35

1 stop29h 30m

Washington, D.C. Dulles Intl

Mon 9/3

22:45-14:15

1 stop11h 30m

£530

BelfastWashington, D.C.

BHD - IAD

BHDIAD

Belfast City

Mon 23/2

11:30-19:55

1 stop13h 25m

Washington, D.C. Dulles Intl

Sun 1/3

18:20-10:20

1 stop11h 00m

£532

BelfastWashington, D.C.

BHD - IAD

BHDIAD

Belfast City

Sat 21/2

06:30-16:05

1 stop14h 35m

Washington, D.C. Dulles Intl

Sat 28/2

19:52-16:50

2 stops39h 58m

£537

BelfastWashington, D.C.

BHD - DCA

BHDDCA

Belfast City

Mon 23/2

06:30-22:08

2 stops20h 38m

Washington, D.C. Reagan-National

Sun 1/3

17:00-21:00

2 stops23h 00m

£540

BelfastWashington, D.C.

BHD - IAD

BHDIAD

Belfast City

Mon 23/2

06:30-23:09

2 stops21h 39m

Washington, D.C. Dulles Intl

Sun 1/3

12:24-16:50

2 stops23h 26m

£540

BelfastWashington, D.C.

BHD - IAD

BHDIAD

Belfast City

Sat 21/2

06:30-23:09

2 stops21h 39m

Washington, D.C. Dulles Intl

Sat 28/2

19:52-16:50

2 stops39h 58m

£547

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.?

Aer Lingus, British Airways, and Finnair 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	17h 00m
Direct flights	None

The fastest flight from Belfast to Washington, D.C. takes 17h 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

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 17h 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.

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

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.