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Cheap flights from Northern Ireland to Washington, D.C. from £531

This is the cheapest return 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 9/3. 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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Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
07:50 - 19:30
BFS
-
IAD
15h 40m
2 stops
Multiple Airlines Logo
20:40 - 19:05
IAD
-
BFS
18h 25m
2 stops
£531Multiple Airlines
Mon, 9 Mar - Mon, 16 Mar
Multiple Airlines Logo
08:00 - 19:30
BHD
-
IAD
15h 30m
2 stops
Multiple Airlines Logo
20:40 - 16:45
IAD
-
BHD
16h 05m
2 stops
£593Multiple Airlines
Mon, 9 Mar - Mon, 16 Mar
Multiple Airlines Logo
17:20 - 15:35
BHD
-
IAD
26h 15m
3 stops
Multiple Airlines Logo
20:40 - 12:15
IAD
-
BHD
11h 35m
2 stops
£670Multiple Airlines
Mon, 9 Mar - Mon, 16 Mar
Delta Logo
06:30 - 17:05
BHD
-
IAD
14h 35m
1 stop
Delta Logo
13:19 - 16:40
IAD
-
BHD
23h 21m
2 stops
£706Delta
Mon, 9 Mar - Mon, 16 Mar
KLM Logo
17:20 - 17:05
BHD
-
IAD
27h 45m
1 stop
KLM Logo
19:05 - 21:00
IAD
-
BHD
21h 55m
1 stop
£734KLM
Sun, 8 Mar - Sun, 15 Mar
British Airways Logo
09:05 - 19:55
BHD
-
IAD
15h 50m
1 stop
British Airways Logo
16:46 - 10:40
IAD
-
BHD
13h 54m
2 stops
£751British Airways
Thu, 5 Mar - Mon, 9 Mar
British Airways Logo
09:15 - 19:55
BHD
-
IAD
15h 40m
1 stop
British Airways Logo
22:45 - 16:50
IAD
-
BHD
14h 05m
1 stop
£753British Airways
Wed, 4 Mar - Sun, 8 Mar
British Airways Logo
06:35 - 20:30
BHD
-
IAD
18h 55m
2 stops
British Airways Logo
19:20 - 10:20
IAD
-
BHD
11h 00m
1 stop
£756British Airways
Wed, 4 Mar - Sun, 8 Mar
British Airways Logo
06:35 - 20:30
BHD
-
IAD
18h 55m
2 stops
British Airways Logo
22:45 - 13:55
IAD
-
BHD
11h 10m
1 stop
£757British Airways
Wed, 4 Mar - Sun, 8 Mar
Virgin Atlantic Logo
06:30 - 18:19
BHD
-
IAD
16h 49m
2 stops
Virgin Atlantic Logo
19:05 - 16:50
IAD
-
BHD
17h 45m
1 stop
£767Virgin Atlantic
Sun, 8 Mar - Sun, 15 Mar

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

Our best Virgin Atlantic deals on Northern Ireland to Washington, D.C. Dulles Intl Airport flight tickets
Virgin Atlantic
9 Mar
BHD06:30Belfast City
14h 35m
1 stop
IAD17:05Washington, D.C. Dulles Intl
16 Mar
IAD19:05Washington, D.C. Dulles Intl
21h 55m
1 stop
BHD21:00Belfast City
£706
Virgin Atlantic
8 Mar
BHD06:30Belfast City
16h 49m
2 stops
IAD18:19Washington, D.C. Dulles Intl
15 Mar
IAD19:05Washington, D.C. Dulles Intl
17h 45m
1 stop
BHD16:50Belfast City
£767

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

Our best British Airways deals on Northern Ireland to Washington, D.C. Dulles Intl Airport flight tickets
British Airways
5 Mar
BHD10:40Belfast City
14h 15m
1 stop
IAD19:55Washington, D.C. Dulles Intl
9 Mar
IAD22:45Washington, D.C. Dulles Intl
11h 30m
1 stop
BHD14:15Belfast City
£751
British Airways
4 Mar
BHD09:15Belfast City
15h 40m
1 stop
IAD19:55Washington, D.C. Dulles Intl
8 Mar
IAD22:45Washington, D.C. Dulles Intl
14h 05m
1 stop
BHD16:50Belfast City
£753
British Airways
4 Mar
BHD06:35Belfast City
18h 55m
2 stops
IAD20:30Washington, D.C. Dulles Intl
8 Mar
IAD19:20Washington, D.C. Dulles Intl
11h 00m
1 stop
BHD10:20Belfast City
£756

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 8 February 2026.
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

Mon 9/3

07:50-19:30

2 stops15h 40m

Washington, D.C. Dulles Intl

Mon 16/3

20:40-19:05

2 stops18h 25m

£531

BelfastWashington, D.C.

BHD - IAD

BHDIAD

Belfast City

Mon 9/3

08:00-19:30

2 stops15h 30m

Washington, D.C. Dulles Intl

Mon 16/3

20:40-16:45

2 stops16h 05m

£593

BelfastWashington, D.C.

BHD - IAD

BHDIAD

Belfast City

Mon 9/3

17:20-15:35

3 stops26h 15m

Washington, D.C. Dulles Intl

Mon 16/3

20:40-12:15

2 stops11h 35m

£670

BelfastWashington, D.C.

BHD - IAD

BHDIAD

Belfast City

Mon 9/3

06:30-17:05

1 stop14h 35m

Washington, D.C. Dulles Intl

Mon 16/3

13:19-16:40

2 stops23h 21m

£706

BelfastWashington, D.C.

BHD - IAD

BHDIAD

Belfast City

Sun 8/3

17:20-17:05

1 stop27h 45m

Washington, D.C. Dulles Intl

Sun 15/3

19:05-21:00

1 stop21h 55m

£734

BelfastWashington, D.C.

BHD - IAD

BHDIAD

Belfast City

Thu 5/3

09:05-19:55

1 stop15h 50m

Washington, D.C. Dulles Intl

Mon 9/3

16:46-10:40

2 stops13h 54m

£751

BelfastWashington, D.C.

BHD - IAD

BHDIAD

Belfast City

Wed 4/3

09:15-19:55

1 stop15h 40m

Washington, D.C. Dulles Intl

Sun 8/3

22:45-16:50

1 stop14h 05m

£753

BelfastWashington, D.C.

BHD - IAD

BHDIAD

Belfast City

Wed 4/3

06:35-20:30

2 stops18h 55m

Washington, D.C. Dulles Intl

Sun 8/3

19:20-10:20

1 stop11h 00m

£756

BelfastWashington, D.C.

BHD - IAD

BHDIAD

Belfast City

Wed 4/3

06:35-20:30

2 stops18h 55m

Washington, D.C. Dulles Intl

Sun 8/3

22:45-13:55

1 stop11h 10m

£757

BelfastWashington, D.C.

BHD - IAD

BHDIAD

Belfast City

Sun 8/3

06:30-18:19

2 stops16h 49m

Washington, D.C. Dulles Intl

Sun 15/3

19:05-16:50

1 stop17h 45m

£767

Flights are sorted by cheapest return flights first.

Showing 1-10 of 13 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 airline that flies from Northern Ireland to Washington, D.C. Dulles Intl?

British Airways is the most popular carrier operating from Northern Ireland to Washington, D.C. Dulles Intl

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

Fastest flight time

14h 00m

Direct flights

None
The fastest flight from Northern Ireland to Washington, D.C. Dulles Intl Airport takes 14h 00m
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.
Search flight deals

  • 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
Fairfax
Arlington
Linthicum Heights
Alexandria
Glen Burnie
Lutherville Timonium
Front Royal
Winchester
Ellicott City
Cambridge
Lexington Park
Westminster
Woodbridge
Bethesda
Ashburn
Sterling
Rockville
Silver Spring

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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