How do I get Price Alerts for flights from Belfast to Washington, D.C.?

Confirm your travel details to search for the latest offers for flights from Belfast to Washington, D.C. . While browsing offers there will be the option to toggle “Price Alerts”. You’ll then receive updates when prices for the flight route increase or decrease.

How can I save money on flights from Belfast to Washington, D.C. with momondo?

Plan your trips smart with the “Price Forecast” feature, which uses flight data to help you pick the best days to fly for the lowest fares. Our “Price Calendar” helps you get the most for your money by showing you when it’s most advantageous to fly. Curate your own travel experiences for less with “Explore” . Expert travel hacks to fuel your next adventure are a click away with “Discover” by momondo. Set up our “Price Alerts” to track fare changes and book when prices are at their lowest point.

How does momondo find its flight prices?

We compare prices from 700+ competitors to help you find the price that works best for you. momondo operates in over 30 international markets, bringing you access to a wide range of fares and deals. Search for your travel using momondo for a diverse range of options from airlines and OTAs.

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.

£669 Cheap Flights from Belfast to Washington, D.C. in 2026

Voted winner of Europe's Best Travel App 2023

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.

19:35 - 15:30

BHD

IAD

24h 55m

2 stops

17:45 - 10:30

IAD

BHD

11h 45m

1 stop

£669British Airways

Fri, 4 Sep - Sun, 6 Sep

20:10 - 15:30

BHD

IAD

24h 20m

2 stops

19:15 - 14:35

IAD

BHD

14h 20m

1 stop

£670British Airways

Fri, 4 Sep - Sun, 6 Sep

20:35 - 18:50

BHD

IAD

27h 15m

2 stops

17:45 - 10:30

IAD

BHD

11h 45m

1 stop

£670British Airways

Wed, 30 Sep - Sun, 4 Oct

20:10 - 15:30

BHD

IAD

24h 20m

2 stops

17:45 - 09:00

IAD

BHD

10h 15m

1 stop

£673British Airways

Fri, 4 Sep - Tue, 8 Sep

09:35 - 20:20

BHD

IAD

15h 45m

1 stop

22:25 - 14:35

IAD

BHD

11h 10m

1 stop

£677British Airways

Fri, 4 Sep - Sun, 6 Sep

21:05 - 21:26

BFS

IAD

29h 21m

3 stops

17:05 - 15:15

IAD

BFS

17h 10m

2 stops

£679Multiple Airlines

Thu, 6 Aug - Tue, 11 Aug

09:35 - 20:20

BHD

IAD

15h 45m

1 stop

22:25 - 14:35

IAD

BHD

11h 10m

1 stop

£679British Airways

Fri, 4 Sep - Sun, 6 Sep

11:35 - 23:10

BHD

DCA

16h 35m

2 stops

15:06 - 10:30

DCA

BHD

14h 24m

2 stops

£682British Airways

Wed, 30 Sep - Sun, 4 Oct

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

20:15 - 22:15

BFS

BWI

31h 00m

3 stops

20:30 - 22:40

BWI

BFS

21h 10m

2 stops

£699Multiple Airlines

Sat, 29 Aug - Sat, 5 Sep

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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

BHD19:35Belfast City

24h 55m

2 stops

IAD15:30Washington, D.C. Dulles Intl

6 Sept

IAD17:45Washington, D.C. Dulles Intl

11h 45m

1 stop

BHD10:30Belfast City

£669

British Airways

4 Sept

BHD20:10Belfast City

24h 20m

2 stops

IAD15:30Washington, D.C. Dulles Intl

6 Sept

IAD19:15Washington, D.C. Dulles Intl

14h 20m

1 stop

BHD14:35Belfast City

£670

British Airways

30 Sept

BHD20:35Belfast City

27h 15m

2 stops

IAD18:50Washington, D.C. Dulles Intl

4 Oct

IAD17:45Washington, D.C. Dulles Intl

11h 45m

1 stop

BHD10:30Belfast City

£670

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

BelfastWashington, D.C.

BHD - IAD

BHDIAD

Belfast City

Fri 4/9

19:35-15:30

2 stops24h 55m

Washington, D.C. Dulles Intl

Sun 6/9

17:45-10:30

1 stop11h 45m

£669

BelfastWashington, D.C.

BHD - IAD

BHDIAD

Belfast City

Fri 4/9

20:10-15:30

2 stops24h 20m

Washington, D.C. Dulles Intl

Sun 6/9

19:15-14:35

1 stop14h 20m

£670

BelfastWashington, D.C.

BHD - IAD

BHDIAD

Belfast City

Wed 30/9

20:35-18:50

2 stops27h 15m

Washington, D.C. Dulles Intl

Sun 4/10

17:45-10:30

1 stop11h 45m

£670

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

£673

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

Sun 6/9

22:25-14:35

1 stop11h 10m

£677

BelfastWashington, D.C.

BFS - IAD

BFSIAD

Belfast Intl

Thu 6/8

21:05-21:26

3 stops29h 21m

Washington, D.C. Dulles Intl

Tue 11/8

17:05-15:15

2 stops17h 10m

£679

BelfastWashington, D.C.

BHD - IAD

BHDIAD

Belfast City

Fri 4/9

09:35-20:20

1 stop15h 45m

Washington, D.C. Dulles Intl

Sun 6/9

22:25-14:35

1 stop11h 10m

£679

BelfastWashington, D.C.

BHD - DCA

BHDDCA

Belfast City

Wed 30/9

11:35-23:10

2 stops16h 35m

Washington, D.C. Reagan-National

Sun 4/10

15:06-10:30

2 stops14h 24m

£682

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

BelfastBaltimore

BFS - BWI

BFSBWI

Belfast Intl

Sat 29/8

20:15-22:15

3 stops31h 00m

Baltimore/Washington

Sat 5/9

20:30-22:40

2 stops21h 10m

£699

Flights are sorted by cheapest return flights first.

Sorted by cheapest first

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 30m
Direct flights	None

The fastest flight from Belfast to Washington, D.C. takes 14h 30m

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 14h 30m.
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.

Frequently asked questions about flying from Belfast to Washington, D.C.

How do I get Price Alerts for flights from Belfast to Washington, D.C.?
Confirm your travel details to search for the latest offers for flights from Belfast to Washington, D.C.. While browsing offers there will be the option to toggle “Price Alerts”. You’ll then receive updates when prices for the flight route increase or decrease.
How can I save money on flights from Belfast to Washington, D.C. with momondo?
Plan your trips smart with the “Price Forecast” feature, which uses flight data to help you pick the best days to fly for the lowest fares. Our “Price Calendar” helps you get the most for your money by showing you when it’s most advantageous to fly. Curate your own travel experiences for less with “Explore”. Expert travel hacks to fuel your next adventure are a click away with “Discover” by momondo. Set up our “Price Alerts” to track fare changes and book when prices are at their lowest point.
How does momondo find its flight prices?
We compare prices from 700+ competitors to help you find the price that works best for you. momondo operates in over 30 international markets, bringing you access to a wide range of fares and deals. Search for your travel using momondo for a diverse range of options from airlines and OTAs.

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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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 £669

This is the cheapest return 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 4/9. 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

Save money when you book flights with momondo

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

momondo Fare Finder

Use the filters below to find and compare flights from Belfast to Washington, D.C. that are best for you.

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.

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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