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.

£409 Cheap Flights from Belfast to Washington, D.C. in 2026

1 adult

0 bags

Voted winner of Europe's Best Travel App 2023

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

Round-trip

One-way

Cheap return flights

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22:10 - 15:10

BFS

IAD

46h 00m

3 stops

17:15 - 18:50

IAD

BFS

20h 35m

2 stops

£620Multiple Airlines

Sun, 7 Jun - Sun, 14 Jun

09:55 - 22:15

BFS

IAD

17h 20m

2 stops

23:20 - 20:15

IAD

BFS

15h 55m

2 stops

£627Multiple Airlines

Sun, 7 Jun - Sun, 14 Jun

09:40 - 19:40

BHD

BWI

15h 00m

1 stop

16:25 - 15:20

BWI

BHD

17h 55m

2 stops

£677American Airlines

Tue, 23 Jun - Tue, 11 Aug

09:40 - 23:59

BHD

BWI

19h 19m

2 stops

19:24 - 17:35

BWI

BHD

17h 11m

2 stops

£681American Airlines

Tue, 23 Jun - Tue, 11 Aug

06:30 - 19:40

BHD

BWI

18h 10m

1 stop

16:25 - 17:35

BWI

BHD

20h 10m

2 stops

£689American Airlines

Tue, 23 Jun - Tue, 11 Aug

06:30 - 19:40

BHD

BWI

18h 10m

1 stop

16:25 - 17:35

BWI

BHD

20h 10m

2 stops

£690American Airlines

Tue, 23 Jun - Tue, 11 Aug

09:40 - 19:40

BHD

BWI

15h 00m

1 stop

16:25 - 17:35

BWI

BHD

20h 10m

2 stops

£694American Airlines

Tue, 23 Jun - Tue, 11 Aug

06:30 - 20:59

BHD

DCA

19h 29m

2 stops

17:35 - 15:20

DCA

BHD

16h 45m

2 stops

£730British Airways

Fri, 28 Aug - Tue, 1 Sep

09:35 - 23:59

BHD

DCA

19h 24m

2 stops

19:06 - 12:55

DCA

BHD

12h 49m

2 stops

£735British Airways

Thu, 1 Oct - Mon, 5 Oct

06:50 - 19:10

BHD

IAD

17h 20m

2 stops

17:15 - 17:50

IAD

BHD

19h 35m

2 stops

£804Aer Lingus

Thu, 21 May - Thu, 28 May

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KLM flights from Belfast to Washington, D.C.

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

KLM

23 Jun

BHD09:50Belfast City

14h 45m

2 stops

IAD19:35Washington, D.C. Dulles Intl

11 Aug

IAD13:00Washington, D.C. Dulles Intl

15h 20m

2 stops

BHD09:20Belfast City

£1,164

KLM

23 Jun

BHD09:50Belfast City

14h 45m

2 stops

IAD19:35Washington, D.C. Dulles Intl

11 Aug

IAD13:00Washington, D.C. Dulles Intl

15h 20m

2 stops

BHD09:20Belfast City

£1,167

KLM

23 Jun

BHD09:50Belfast City

14h 45m

2 stops

IAD19:35Washington, D.C. Dulles Intl

11 Aug

IAD13:00Washington, D.C. Dulles Intl

15h 20m

2 stops

BHD09:20Belfast City

£1,168

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

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

British Airways

28 Aug

BHD06:30Belfast City

19h 29m

2 stops

DCA20:59Washington, D.C. Reagan-National

1 Sept

DCA17:35Washington, D.C. Reagan-National

16h 45m

2 stops

BHD15:20Belfast City

£730

British Airways

1 Oct

BHD09:35Belfast City

19h 24m

2 stops

DCA23:59Washington, D.C. Reagan-National

5 Oct

DCA19:06Washington, D.C. Reagan-National

12h 49m

2 stops

BHD12:55Belfast City

£735

British Airways

21 May

BHD14:20Belfast City

11h 00m

1 stop

IAD20:20Washington, D.C. Dulles Intl

28 May

IAD19:15Washington, D.C. Dulles Intl

15h 15m

1 stop

BHD15:30Belfast City

£736

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

BelfastWashington, D.C.

BFS - IAD

BFSIAD

Belfast Intl

Sun 7/6

22:10-15:10

3 stops46h 00m

Washington, D.C. Dulles Intl

Sun 14/6

17:15-18:50

2 stops20h 35m

£620

BelfastWashington, D.C.

BFS - IAD

BFSIAD

Belfast Intl

Sun 7/6

09:55-22:15

2 stops17h 20m

Washington, D.C. Dulles Intl

Sun 14/6

23:20-20:15

2 stops15h 55m

£627

BelfastBaltimore

BHD - BWI

BHDBWI

Belfast City

Tue 23/6

09:40-19:40

1 stop15h 00m

Baltimore/Washington

Tue 11/8

16:25-15:20

2 stops17h 55m

£677

BelfastBaltimore

BHD - BWI

BHDBWI

Belfast City

Tue 23/6

09:40-23:59

2 stops19h 19m

Baltimore/Washington

Tue 11/8

19:24-17:35

2 stops17h 11m

£681

BelfastBaltimore

BHD - BWI

BHDBWI

Belfast City

Tue 23/6

06:30-19:40

1 stop18h 10m

Baltimore/Washington

Tue 11/8

16:25-17:35

2 stops20h 10m

£689

BelfastBaltimore

BHD - BWI

BHDBWI

Belfast City

Tue 23/6

06:30-19:40

1 stop18h 10m

Baltimore/Washington

Tue 11/8

16:25-17:35

2 stops20h 10m

£690

BelfastBaltimore

BHD - BWI

BHDBWI

Belfast City

Tue 23/6

09:40-19:40

1 stop15h 00m

Baltimore/Washington

Tue 11/8

16:25-17:35

2 stops20h 10m

£694

BelfastWashington, D.C.

BHD - DCA

BHDDCA

Belfast City

Fri 28/8

06:30-20:59

2 stops19h 29m

Washington, D.C. Reagan-National

Tue 1/9

17:35-15:20

2 stops16h 45m

£730

Fastest return journey

BelfastWashington, D.C.

BHD - DCA

BHDDCA

Belfast City

Thu 1/10

09:35-23:59

2 stops19h 24m

Washington, D.C. Reagan-National

Mon 5/10

19:06-12:55

2 stops12h 49m

£735

BelfastWashington, D.C.

BHD - IAD

BHDIAD

Belfast City

Thu 21/5

06:50-19:10

2 stops17h 20m

Washington, D.C. Dulles Intl

Thu 28/5

17:15-17:50

2 stops19h 35m

£804

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, Aer Lingus, 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.

College Park

Alexandria

Fairfax

Arlington

Linthicum Heights

Glen Burnie

Laurel

Lutherville Timonium

Ellicott City

Cambridge

Westminster

Lexington Park

Woodbridge

Bethesda

Silver Spring

Owings Mills

Rockville

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

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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 £409

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 10/8. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Big names, great deals

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KLM flights from Belfast to Washington, D.C.

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

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

Our best British Airways 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.

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