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Cheap flights from Northern Ireland to Washington, D.C. from £314

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 21/11. 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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Cheap return flights

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Multiple Airlines Logo
07:10 - 15:15BFS-IAD
37h 05m3 stops
Multiple Airlines Logo
22:30 - 20:20IAD-BFS
16h 50m2 stops
£542Multiple Airlines
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Wed, 3 Dec - Wed, 10 Dec
Multiple Airlines Logo
14:15 - 15:15BHD-IAD
30h 00m3 stops
Multiple Airlines Logo
22:30 - 20:50IAD-BHD
17h 20m2 stops
£548Multiple Airlines
Find Deal
Wed, 3 Dec - Wed, 10 Dec
Virgin Atlantic Logo
06:30 - 16:05BHD-IAD
14h 35m1 stop
Virgin Atlantic Logo
18:05 - 21:00IAD-BHD
21h 55m1 stop
£702Virgin Atlantic
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Wed, 3 Dec - Wed, 10 Dec
American Airlines Logo
06:35 - 19:55BHD-IAD
18h 20m1 stop
American Airlines Logo
21:45 - 14:50IAD-BHD
12h 05m1 stop
£740American Airlines
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Mon, 24 Nov - Tue, 2 Dec
American Airlines Logo
09:15 - 19:55BHD-IAD
15h 40m1 stop
American Airlines Logo
20:09 - 16:05IAD-BHD
14h 56m2 stops
£743American Airlines
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Mon, 24 Nov - Mon, 1 Dec
British Airways Logo
06:35 - 19:55BHD-IAD
18h 20m1 stop
British Airways Logo
21:45 - 16:50IAD-BHD
14h 05m1 stop
£749British Airways
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Wed, 19 Nov - Sun, 23 Nov
British Airways Logo
15:05 - 15:35BHD-IAD
29h 30m1 stop
British Airways Logo
21:45 - 14:15IAD-BHD
11h 30m1 stop
£753British Airways
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Thu, 20 Nov - Mon, 24 Nov
Virgin Atlantic Logo
06:30 - 16:05BHD-IAD
14h 35m1 stop
Virgin Atlantic Logo
18:05 - 16:50IAD-BHD
17h 45m1 stop
£837Virgin Atlantic
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Sun, 23 Nov - Sun, 30 Nov
Delta Logo
06:30 - 19:08BHD-IAD
17h 38m2 stops
Delta Logo
17:03 - 16:50IAD-BHD
18h 47m2 stops
£841Delta
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Fri, 28 Nov - Tue, 2 Dec
Delta Logo
06:30 - 19:08BHD-IAD
17h 38m2 stops
Delta Logo
17:03 - 16:50IAD-BHD
18h 47m2 stops
£848Delta
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Fri, 28 Nov - Mon, 1 Dec

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
24 Nov
BHD06:35Belfast City
18h 20m
1 stop
IAD19:55Washington, D.C. Dulles Intl
2 Dec
IAD21:45Washington, D.C. Dulles Intl
12h 05m
1 stop
BHD14:50Belfast City
£740
Find similar
American Airlines
24 Nov
BHD09:15Belfast City
15h 40m
1 stop
IAD19:55Washington, D.C. Dulles Intl
1 Dec
IAD20:09Washington, D.C. Dulles Intl
14h 56m
2 stops
BHD16:05Belfast City
£743
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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
£747
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Delta flights from Northern Ireland to Washington, D.C. Dulles Intl Airport

Our best Delta deals on Northern Ireland to Washington, D.C. Dulles Intl Airport flight tickets
Delta
28 Nov
BHD06:30Belfast City
17h 38m
2 stops
IAD19:08Washington, D.C. Dulles Intl
2 Dec
IAD17:03Washington, D.C. Dulles Intl
18h 47m
2 stops
BHD16:50Belfast City
£841
Find similar
Delta
28 Nov
BHD06:30Belfast City
17h 38m
2 stops
IAD19:08Washington, D.C. Dulles Intl
1 Dec
IAD17:03Washington, D.C. Dulles Intl
18h 47m
2 stops
BHD16:50Belfast City
£848
Find similar
Delta
21 Nov
BHD06:30Belfast City
14h 35m
1 stop
IAD16:05Washington, D.C. Dulles Intl
30 Nov
IAD18:05Washington, D.C. Dulles Intl
17h 45m
1 stop
BHD16:50Belfast City
£868
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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 6 November 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.

BFS - IAD

BFSIAD

Belfast Intl

Wed 3/12

07:10-15:15

3 stops37h 05m

Washington, D.C. Dulles Intl

Wed 10/12

22:30-20:20

2 stops16h 50m

£542

BelfastWashington, D.C.

BHD - IAD

BHDIAD

Belfast City

Wed 3/12

14:15-15:15

3 stops30h 00m

Washington, D.C. Dulles Intl

Wed 10/12

22:30-20:50

2 stops17h 20m

£548

BelfastWashington, D.C.

BHD - IAD

BHDIAD

Belfast City

Wed 3/12

06:30-16:05

1 stop14h 35m

Washington, D.C. Dulles Intl

Wed 10/12

18:05-21:00

1 stop21h 55m

£702

BelfastWashington, D.C.

BHD - IAD

BHDIAD

Belfast City

Mon 24/11

06:35-19:55

1 stop18h 20m

Washington, D.C. Dulles Intl

Tue 2/12

21:45-14:50

1 stop12h 05m

£740

BelfastWashington, D.C.

BHD - IAD

BHDIAD

Belfast City

Mon 24/11

09:15-19:55

1 stop15h 40m

Washington, D.C. Dulles Intl

Mon 1/12

20:09-16:05

2 stops14h 56m

£743

BelfastWashington, D.C.

BHD - IAD

BHDIAD

Belfast City

Wed 19/11

06:35-19:55

1 stop18h 20m

Washington, D.C. Dulles Intl

Sun 23/11

21:45-16:50

1 stop14h 05m

£749

BelfastWashington, D.C.

BHD - IAD

BHDIAD

Belfast City

Thu 20/11

15:05-15:35

1 stop29h 30m

Washington, D.C. Dulles Intl

Mon 24/11

21:45-14:15

1 stop11h 30m

£753

BelfastWashington, D.C.

BHD - IAD

BHDIAD

Belfast City

Sun 23/11

06:30-16:05

1 stop14h 35m

Washington, D.C. Dulles Intl

Sun 30/11

18:05-16:50

1 stop17h 45m

£837

BelfastWashington, D.C.

BHD - IAD

BHDIAD

Belfast City

Fri 28/11

06:30-19:08

2 stops17h 38m

Washington, D.C. Dulles Intl

Tue 2/12

17:03-16:50

2 stops18h 47m

£841

BelfastWashington, D.C.

BHD - IAD

BHDIAD

Belfast City

Fri 28/11

06:30-19:08

2 stops17h 38m

Washington, D.C. Dulles Intl

Mon 1/12

17:03-16:50

2 stops18h 47m

£848

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 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 £732. 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 £821.

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
Laurel
College Park
Alexandria
Fairfax
Linthicum Heights
Bethesda
Front Royal
Cambridge
Winchester
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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