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Cheap flights from Belfast to Washington, D.C. from £473

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 15/7. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags
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Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
07:00 - 22:15
BHD
-
IAD
20h 15m
2 stops
Multiple Airlines Logo
23:20 - 20:35
IAD
-
BHD
16h 15m
2 stops
£571Multiple Airlines
mié., 24 jun. - dom., 28 jun.
Multiple Airlines Logo
06:10 - 22:15
BFS
-
IAD
21h 05m
2 stops
Multiple Airlines Logo
23:20 - 20:15
IAD
-
BFS
15h 55m
2 stops
£584Multiple Airlines
mié., 24 jun. - dom., 28 jun.
British Airways Logo
10:05 - 19:40
BHD
-
BWI
14h 35m
1 stop
British Airways Logo
21:35 - 14:35
BWI
-
BHD
12h 00m
1 stop
£597British Airways
mié., 24 jun. - dom., 28 jun.
British Airways Logo
10:05 - 17:25
BHD
-
IAD
12h 20m
1 stop
British Airways Logo
22:25 - 17:40
IAD
-
BHD
14h 15m
1 stop
£597British Airways
mié., 24 jun. - dom., 28 jun.
British Airways Logo
10:05 - 17:25
BHD
-
IAD
12h 20m
1 stop
British Airways Logo
20:22 - 17:40
IAD
-
BHD
16h 18m
2 stops
£600British Airways
mié., 24 jun. - dom., 28 jun.
British Airways Logo
09:35 - 19:40
BHD
-
BWI
15h 05m
1 stop
British Airways Logo
21:30 - 15:30
BWI
-
BHD
13h 00m
1 stop
£601British Airways
jue., 4 jun. - lun., 8 jun.
British Airways Logo
12:45 - 19:40
BHD
-
BWI
11h 55m
1 stop
British Airways Logo
21:30 - 15:30
BWI
-
BHD
13h 00m
1 stop
£602British Airways
jue., 4 jun. - lun., 8 jun.
British Airways Logo
20:35 - 20:40
BHD
-
BWI
29h 05m
2 stops
British Airways Logo
21:30 - 15:30
BWI
-
BHD
13h 00m
1 stop
£605British Airways
jue., 4 jun. - lun., 8 jun.
Multiple Airlines Logo
07:35 - 14:15
BFS
-
IAD
35h 40m
3 stops
Multiple Airlines Logo
20:30 - 23:20
IAD
-
BFS
21h 50m
3 stops
£692Multiple Airlines
vie., 1 may. - lun., 11 may.
Delta Logo
09:50 - 22:24
BHD
-
BWI
17h 34m
2 stops
Delta Logo
19:13 - 16:55
BWI
-
BHD
16h 42m
2 stops
£3,279Delta
mié., 24 jun. - dom., 28 jun.

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

Our best British Airways deals on Belfast to Washington, D.C. flight tickets
British Airways
24 Jun
BHD10:05Belfast City
12h 20m
1 stop
IAD17:25Washington, D.C. Dulles Intl
28 Jun
IAD22:25Washington, D.C. Dulles Intl
14h 15m
1 stop
BHD17:40Belfast City
£597
British Airways
24 Jun
BHD10:05Belfast City
12h 20m
1 stop
IAD17:25Washington, D.C. Dulles Intl
28 Jun
IAD20:22Washington, D.C. Dulles Intl
16h 18m
2 stops
BHD17:40Belfast City
£600
British Airways
4 Jun
BHD09:35Belfast City
15h 05m
1 stop
BWI19:40Baltimore/Washington
8 Jun
BWI21:30Baltimore/Washington
13h 00m
1 stop
BHD15:30Belfast City
£601

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 25 marzo 2026.
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

Cheapest return flight

BelfastWashington, D.C.

BHD - IAD

BHDIAD

Belfast City

mié. 24/6

07:00-22:15

2 stops20h 15m

Washington, D.C. Dulles Intl

dom. 28/6

23:20-20:35

2 stops16h 15m

£571

BelfastWashington, D.C.

BFS - IAD

BFSIAD

Belfast Intl

mié. 24/6

06:10-22:15

2 stops21h 05m

Washington, D.C. Dulles Intl

dom. 28/6

23:20-20:15

2 stops15h 55m

£584

BelfastBaltimore

BHD - BWI

BHDBWI

Belfast City

mié. 24/6

10:05-19:40

1 stop14h 35m

Baltimore/Washington

dom. 28/6

21:35-14:35

1 stop12h 00m

£597

BelfastWashington, D.C.

BHD - IAD

BHDIAD

Belfast City

mié. 24/6

10:05-17:25

1 stop12h 20m

Washington, D.C. Dulles Intl

dom. 28/6

22:25-17:40

1 stop14h 15m

£597

BelfastWashington, D.C.

BHD - IAD

BHDIAD

Belfast City

mié. 24/6

10:05-17:25

1 stop12h 20m

Washington, D.C. Dulles Intl

dom. 28/6

20:22-17:40

2 stops16h 18m

£600

BelfastBaltimore

BHD - BWI

BHDBWI

Belfast City

jue. 4/6

09:35-19:40

1 stop15h 05m

Baltimore/Washington

lun. 8/6

21:30-15:30

1 stop13h 00m

£601
Fastest return journey

BelfastBaltimore

BHD - BWI

BHDBWI

Belfast City

jue. 4/6

12:45-19:40

1 stop11h 55m

Baltimore/Washington

lun. 8/6

21:30-15:30

1 stop13h 00m

£602

BelfastBaltimore

BHD - BWI

BHDBWI

Belfast City

jue. 4/6

20:35-20:40

2 stops29h 05m

Baltimore/Washington

lun. 8/6

21:30-15:30

1 stop13h 00m

£605

BelfastWashington, D.C.

BFS - IAD

BFSIAD

Belfast Intl

vie. 1/5

07:35-14:15

3 stops35h 40m

Washington, D.C. Dulles Intl

lun. 11/5

20:30-23:20

3 stops21h 50m

£692

BelfastBaltimore

BHD - BWI

BHDBWI

Belfast City

mié. 24/6

09:50-22:24

2 stops17h 34m

Baltimore/Washington

dom. 28/6

19:13-16:55

2 stops16h 42m

£3,279

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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 airline that flies from Belfast to Washington, D.C.?

Iberia and British Airways 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

14h 35m

Direct flights

None
The fastest flight from Belfast to Washington, D.C. takes 14h 35m
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 14h 35m.

  • 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.

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

Book flights to Washington, D.C. if you plan to visit one of these locations
College Park
Arlington
Fairfax
Linthicum Heights
Glen Burnie
Laurel
Lutherville Timonium
Ellicott City
Cambridge
Lexington Park
Westminster
Woodbridge
Bethesda
Alexandria
Silver Spring
Rockville
Owings Mills
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

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.
Start using Trips
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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