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Cheap flights from Belfast to Washington, D.C. from £566

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 20/11. 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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0 bags

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

Cheap return flights

American Airlines Logo
10:40 - 19:55BHD-IAD
14h 15m1 stop
American Airlines Logo
16:34 - 14:15IAD-BHD
16h 41m2 stops
£566American Airlines
Find Deal
Thu, 20 Nov - Mon, 24 Nov
American Airlines Logo
09:05 - 18:12BHD-DCA
14h 07m2 stops
American Airlines Logo
18:21 - 16:05DCA-BHD
16h 44m2 stops
£571American Airlines
Find Deal
Thu, 4 Dec - Mon, 8 Dec
American Airlines Logo
09:05 - 15:35BHD-IAD
11h 30m1 stop
American Airlines Logo
09:12 - 10:40IAD-BHD
20h 28m2 stops
£588American Airlines
Find Deal
Thu, 20 Nov - Mon, 24 Nov
American Airlines Logo
06:35 - 15:35BHD-IAD
14h 00m1 stop
American Airlines Logo
21:45 - 16:05IAD-BHD
13h 20m1 stop
£588American Airlines
Find Deal
Thu, 20 Nov - Mon, 24 Nov
American Airlines Logo
11:05 - 22:38BHD-DCA
16h 33m2 stops
American Airlines Logo
15:59 - 10:40DCA-BHD
13h 41m2 stops
£591American Airlines
Find Deal
Thu, 4 Dec - Mon, 8 Dec
American Airlines Logo
09:05 - 20:11BHD-DCA
16h 06m2 stops
American Airlines Logo
14:54 - 10:40DCA-BHD
14h 46m2 stops
£593American Airlines
Find Deal
Thu, 4 Dec - Mon, 8 Dec

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

Our best American Airlines deals on Belfast to Washington, D.C. flight tickets
American Airlines
20 Nov
BHD10:40Belfast City
14h 15m
1 stop
IAD19:55Washington, D.C. Dulles Intl
24 Nov
IAD16:34Washington, D.C. Dulles Intl
16h 41m
2 stops
BHD14:15Belfast City
£566
Find similar
American Airlines
4 Dec
BHD09:05Belfast City
14h 07m
2 stops
DCA18:12Washington, D.C. Reagan-National
8 Dec
DCA18:21Washington, D.C. Reagan-National
16h 44m
2 stops
BHD16:05Belfast City
£571
Find similar
American Airlines
20 Nov
BHD09:05Belfast City
11h 30m
1 stop
IAD15:35Washington, D.C. Dulles Intl
24 Nov
IAD09:12Washington, D.C. Dulles Intl
20h 28m
2 stops
BHD10:40Belfast City
£588
Find similar

momondo Fare Finder

 
Customise your flight search to find flights from Belfast to Washington, D.C. that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 279,928 searches. Data last updated 22 August 2025.
Use the filters below to find and compare flights from Belfast to Washington, D.C. that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BelfastWashington, D.C.

BHD - IAD

BHDIAD

Belfast City

Thu 20/11

10:40-19:55

1 stop14h 15m

Washington, D.C. Dulles Intl

Mon 24/11

16:34-14:15

2 stops16h 41m

£566

BelfastWashington, D.C.

BHD - DCA

BHDDCA

Belfast City

Thu 4/12

09:05-18:12

2 stops14h 07m

Washington, D.C. Reagan-National

Mon 8/12

18:21-16:05

2 stops16h 44m

£571

BelfastWashington, D.C.

BHD - IAD

BHDIAD

Belfast City

Thu 20/11

09:05-15:35

1 stop11h 30m

Washington, D.C. Dulles Intl

Mon 24/11

09:12-10:40

2 stops20h 28m

£588

BelfastWashington, D.C.

BHD - IAD

BHDIAD

Belfast City

Thu 20/11

06:35-15:35

1 stop14h 00m

Washington, D.C. Dulles Intl

Mon 24/11

21:45-16:05

1 stop13h 20m

£588

BelfastWashington, D.C.

BHD - DCA

BHDDCA

Belfast City

Thu 4/12

11:05-22:38

2 stops16h 33m

Washington, D.C. Reagan-National

Mon 8/12

15:59-10:40

2 stops13h 41m

£591

BelfastWashington, D.C.

BHD - DCA

BHDDCA

Belfast City

Thu 4/12

09:05-20:11

2 stops16h 06m

Washington, D.C. Reagan-National

Mon 8/12

14:54-10:40

2 stops14h 46m

£593

Flights are sorted by cheapest return flights first.

Sorted by cheapest first

See travel insights to Washington, D.C. from

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 day to depart on your flight to Washington, D.C.?

On average, the least expensive day to fly to Washington, D.C. from Belfast is on a Friday. momondo users have found tickets for Friday departures for as low as £736. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Monday is the most expensive day to depart from Belfast because it is more convenient for both business and leisure travellers. As a result, prices tend to be around £1,039.

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.

Direct flights

None
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 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 many operators does momondo search for flights from Belfast to Washington, D.C.?

  • 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.

Best airlines flying from Belfast to Washington, D.C.

Compare and see reviews for airlines that fly from Belfast to Washington, D.C. with momondo
Airline
Rating
Free Cancellation
Price
British AirwaysPriceFrom £610Free CancellationRating
6.7
7,292 reviews
Search British Airways flights

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

Book flights to Washington, D.C. if you plan to visit one of these locations
Laurel
Essex
Alexandria
Fairfax
Manassas
Bethesda
Oxon Hill
College Park
Linthicum Heights
Gettysburg
Hanover
Cambridge
Ellicott City
Westminster
Arlington
Woodbridge
Owings Mills
Silver Spring
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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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.
Washington, D.C. Reagan-National Airport
Washington, D.C. Dulles Intl Airport