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Cheap flights from Northern Ireland to Washington, D.C. from £286

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Northern Ireland to Washington, D.C. departing on 14/10. 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 Northern Ireland to Washington, D.C.

Cheap return flights

American Airlines Logo
11:05 - 19:55BHD-IAD
13h 50m1 stop
American Airlines Logo
11:25 - 14:15IAD-BHD
21h 50m2 stops
£494American Airlines
Find Deal
Thu, 20 Nov - Mon, 24 Nov
American Airlines Logo
10:40 - 19:55BHD-IAD
14h 15m1 stop
American Airlines Logo
18:20 - 10:40IAD-BHD
11h 20m1 stop
£494American Airlines
Find Deal
Thu, 20 Nov - Mon, 24 Nov
American Airlines Logo
06:35 - 19:20BHD-IAD
17h 45m2 stops
American Airlines Logo
14:16 - 10:40IAD-BHD
15h 24m2 stops
£499American Airlines
Find Deal
Thu, 20 Nov - Mon, 24 Nov
KLM Logo
06:30 - 15:35BHD-IAD
14h 05m1 stop
KLM Logo
21:20 - 16:55IAD-BHD
14h 35m2 stops
£517KLM
Find Deal
Thu, 9 Oct - Thu, 16 Oct
KLM Logo
06:30 - 16:29BHD-IAD
14h 59m2 stops
KLM Logo
21:20 - 16:55IAD-BHD
14h 35m2 stops
£521KLM
Find Deal
Thu, 9 Oct - Thu, 16 Oct
Logo
06:50 - 20:20BHD-IAD
18h 30m1 stop
Logo
13:09 - 11:30IAD-BHD
17h 21m2 stops
£544
Find Deal
Sun, 12 Oct - Sun, 19 Oct
Logo
06:50 - 23:53BHD-IAD
22h 03m2 stops
Logo
20:25 - 17:40IAD-BHD
16h 15m2 stops
£548
Find Deal
Sun, 12 Oct - Sun, 19 Oct
British Airways Logo
11:00 - 20:20BHD-IAD
14h 20m1 stop
British Airways Logo
17:50 - 13:05IAD-BHD
14h 15m1 stop
£558British Airways
Find Deal
Sun, 12 Oct - Sun, 19 Oct
British Airways Logo
06:50 - 23:53BHD-IAD
22h 03m2 stops
British Airways Logo
17:50 - 09:05IAD-BHD
10h 15m1 stop
£596British Airways
Find Deal
Sun, 12 Oct - Sun, 19 Oct
Delta Logo
06:30 - 23:00BHD-IAD
21h 30m2 stops
Delta Logo
17:25 - 16:55IAD-BHD
18h 30m1 stop
£612Delta
Find Deal
Fri, 10 Oct - Sun, 12 Oct

KLM flights from Northern Ireland to Washington, D.C. Dulles Intl Airport

Our best KLM deals on Northern Ireland to Washington, D.C. Dulles Intl Airport flight tickets
KLM
9 Oct
BHD06:30Belfast City
14h 05m
1 stop
IAD15:35Washington, D.C. Dulles Intl
16 Oct
IAD21:20Washington, D.C. Dulles Intl
14h 35m
2 stops
BHD16:55Belfast City
£517
Find similar
KLM
9 Oct
BHD06:30Belfast City
14h 59m
2 stops
IAD16:29Washington, D.C. Dulles Intl
16 Oct
IAD21:20Washington, D.C. Dulles Intl
14h 35m
2 stops
BHD16:55Belfast City
£521
Find similar
KLM
9 Oct
BHD06:30Belfast City
14h 05m
1 stop
IAD15:35Washington, D.C. Dulles Intl
16 Oct
IAD17:25Washington, D.C. Dulles Intl
22h 50m
1 stop
BHD21:15Belfast City
£525
Find similar

American Airlines flights from Northern Ireland to Washington, D.C. Dulles Intl Airport

Our best American Airlines deals on Northern Ireland to Washington, D.C. Dulles Intl Airport flight tickets
American Airlines
20 Nov
BHD11:05Belfast City
13h 50m
1 stop
IAD19:55Washington, D.C. Dulles Intl
24 Nov
IAD11:25Washington, D.C. Dulles Intl
21h 50m
2 stops
BHD14:15Belfast City
£494
Find similar
American Airlines
20 Nov
BHD10:40Belfast City
14h 15m
1 stop
IAD19:55Washington, D.C. Dulles Intl
24 Nov
IAD18:20Washington, D.C. Dulles Intl
11h 20m
1 stop
BHD10:40Belfast City
£494
Find similar
American Airlines
20 Nov
BHD06:35Belfast City
17h 45m
2 stops
IAD19:20Washington, D.C. Dulles Intl
24 Nov
IAD14:16Washington, D.C. Dulles Intl
15h 24m
2 stops
BHD10:40Belfast City
£499
Find similar

momondo Fare Finder

 
Customise your flight search to find flights from Northern Ireland to Washington, D.C. Dulles Intl Airport 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 16 September 2025.
Use the filters below to find and compare flights from Northern Ireland to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BelfastWashington, D.C.

BHD - IAD

BHDIAD

Belfast City

Thu 20/11

11:05-19:55

1 stop13h 50m

Washington, D.C. Dulles Intl

Mon 24/11

11:25-14:15

2 stops21h 50m

£494

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

18:20-10:40

1 stop11h 20m

£494

BelfastWashington, D.C.

BHD - IAD

BHDIAD

Belfast City

Thu 20/11

06:35-19:20

2 stops17h 45m

Washington, D.C. Dulles Intl

Mon 24/11

14:16-10:40

2 stops15h 24m

£499

BelfastWashington, D.C.

BHD - IAD

BHDIAD

Belfast City

Thu 9/10

06:30-15:35

1 stop14h 05m

Washington, D.C. Dulles Intl

Thu 16/10

21:20-16:55

2 stops14h 35m

£517

BelfastWashington, D.C.

BHD - IAD

BHDIAD

Belfast City

Thu 9/10

06:30-16:29

2 stops14h 59m

Washington, D.C. Dulles Intl

Thu 16/10

21:20-16:55

2 stops14h 35m

£521

BelfastWashington, D.C.

BHD - IAD

BHDIAD

Belfast City

Sun 12/10

06:50-20:20

1 stop18h 30m

Washington, D.C. Dulles Intl

Sun 19/10

13:09-11:30

2 stops17h 21m

£544

BelfastWashington, D.C.

BHD - IAD

BHDIAD

Belfast City

Sun 12/10

06:50-23:53

2 stops22h 03m

Washington, D.C. Dulles Intl

Sun 19/10

20:25-17:40

2 stops16h 15m

£548

BelfastWashington, D.C.

BHD - IAD

BHDIAD

Belfast City

Sun 12/10

11:00-20:20

1 stop14h 20m

Washington, D.C. Dulles Intl

Sun 19/10

17:50-13:05

1 stop14h 15m

£558

BelfastWashington, D.C.

BHD - IAD

BHDIAD

Belfast City

Sun 12/10

06:50-23:53

2 stops22h 03m

Washington, D.C. Dulles Intl

Sun 19/10

17:50-09:05

1 stop10h 15m

£596

BelfastWashington, D.C.

BHD - IAD

BHDIAD

Belfast City

Fri 10/10

06:30-23:00

2 stops21h 30m

Washington, D.C. Dulles Intl

Sun 12/10

17:25-16:55

1 stop18h 30m

£612

Flights are sorted by cheapest return flights first.

Showing 1-10 of 15 resultsSorted by cheapest first
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See travel insights to Washington, D.C. from

How to get the cheapest flight ticket from Northern Ireland to Washington, D.C. Dulles Intl Airport

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 time of day to depart on your flight to Washington, D.C. Dulles Intl Airport?

The cheapest time of day to fly to Washington, D.C. Dulles Intl Airport is at midday when flights can be purchased for as low as £702. In contrast, the most expensive time of day to depart to Washington, D.C. Dulles Intl Airport is in the morning when prices are around £787.

Cheap Northern Ireland to Washington, D.C. Dulles Intl Airport flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Northern Ireland to Washington, D.C. Dulles Intl Airport

Direct flights

None
There are no direct flights from Northern Ireland to Washington, D.C. Dulles Intl Airport. There are no popular flight routes from Northern Ireland to Washington, D.C. Dulles Intl Airport.
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  • When did momondo last update prices for flights from Northern Ireland to Washington, D.C. Dulles Intl Airport?

    Prices for flights from Northern Ireland to Washington, D.C. Dulles Intl Airport were last updated today.

  • How old do you have to be to fly from Northern Ireland to Washington, D.C. Dulles Intl Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Northern Ireland to Washington, D.C. Dulles Intl Airport.

  • What documentation or ID do you need to fly to Washington, D.C. Dulles Intl Airport?

    The required travel and health documents for your Washington, D.C. Dulles Intl Airport 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. Dulles Intl Airport. 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
Winchester
Laurel
College Park
Essex
Alexandria
Fairfax
Bethesda
Oxon Hill
Gettysburg
Front Royal
Cambridge
Ellicott City
Westminster
Arlington
Ashburn
Woodbridge
Owings Mills
Sterling
Silver Spring
National Harbor

Why use momondo?

Why should I use momondo to find a flight deal from Northern Ireland to Washington, D.C.?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Northern Ireland to Washington, D.C.. momondo saves you time and could save you money on your trip.

Can I find flights from Northern Ireland to Washington, D.C. with flexible booking policies on momondo?

Yes. All flights to Washington, D.C. from Northern Ireland on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Northern Ireland to Washington, D.C.?

momondo provides multiple filters to help you find the best flight to Washington, D.C. from Northern Ireland. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Northern Ireland to Washington, D.C. right now. Can momondo alert me if prices change?

Price alerts on flights to Washington, D.C. from Northern Ireland are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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