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Cheap flights from Washington to Northern Ireland from £253

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington to Northern Ireland departing on 3/2. 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.
British Airways Logo
17:45 - 18:35PDX-BHD
16h 50m1 stop
British Airways Logo
11:05 - 23:32BHD-PDX
20h 27m2 stops
£482British Airways
Find Deal
Mon, 19 Jan - Thu, 29 Jan
Delta Logo
15:05 - 21:00SEA-BHD
21h 55m1 stop
Delta Logo
06:30 - 11:50BHD-SEA
13h 20m1 stop
£483Delta
Find Deal
Wed, 3 Dec - Sun, 7 Dec
American Airlines Logo
12:35 - 16:05PDX-BHD
19h 30m2 stops
American Airlines Logo
06:35 - 20:22BHD-PDX
21h 47m2 stops
£484American Airlines
Find Deal
Mon, 19 Jan - Thu, 29 Jan
KLM Logo
10:05 - 16:50PDX-BHD
22h 45m2 stops
KLM Logo
06:30 - 11:25BHD-PDX
12h 55m1 stop
£487KLM
Find Deal
Thu, 4 Dec - Mon, 15 Dec
Virgin Atlantic Logo
15:05 - 16:50SEA-BHD
17h 45m1 stop
Virgin Atlantic Logo
17:20 - 20:13BHD-SEA
34h 53m2 stops
£490Virgin Atlantic
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Wed, 3 Dec - Sun, 7 Dec
KLM Logo
10:05 - 16:50PDX-BHD
22h 45m2 stops
KLM Logo
06:30 - 17:43BHD-PDX
19h 13m2 stops
£535KLM
Find Deal
Thu, 4 Dec - Mon, 15 Dec
Virgin Atlantic Logo
07:20 - 21:00SEA-BHD
29h 40m2 stops
Virgin Atlantic Logo
17:20 - 20:13BHD-SEA
34h 53m2 stops
£559Virgin Atlantic
Find Deal
Wed, 3 Dec - Sun, 7 Dec
Multiple Airlines Logo
07:14 - 10:20PDX-BHD
19h 06m2 stops
Multiple Airlines Logo
09:15 - 15:55BHD-PDX
14h 40m1 stop
£572Multiple Airlines
Find Deal
Thu, 1 Jan - Wed, 18 Feb
Multiple Airlines Logo
07:14 - 10:20PDX-BHD
19h 06m2 stops
Multiple Airlines Logo
12:25 - 23:20BHD-PDX
18h 55m2 stops
£580Multiple Airlines
Find Deal
Thu, 1 Jan - Wed, 18 Feb
American Airlines Logo
14:35 - 10:30SEA-BHD
12h 55m1 stop
American Airlines Logo
06:35 - 23:08BHD-SEA
24h 33m2 stops
£748American Airlines
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Fri, 27 Mar - Tue, 31 Mar

British Airways flights from State of Washington to Northern Ireland

Our best British Airways deals on State of Washington to Northern Ireland flight tickets
British Airways
19 Jan
PDX17:45Portland
16h 50m
1 stop
BHD18:35Belfast City
29 Jan
BHD11:05Belfast City
20h 27m
2 stops
PDX23:32Portland
£482
Find similar
British Airways
3 Apr
PDX19:30Portland
14h 45m
1 stop
BHD18:15Belfast City
7 Apr
BHD09:35Belfast City
16h 05m
1 stop
PDX17:40Portland
£565
Find similar
British Airways
3 Apr
PDX19:30Portland
14h 45m
1 stop
BHD18:15Belfast City
7 Apr
BHD09:35Belfast City
16h 05m
1 stop
PDX17:40Portland
£567
Find similar

Delta flights from State of Washington to Northern Ireland

Our best Delta deals on State of Washington to Northern Ireland flight tickets
Delta
3 Dec
SEA15:05Seattle/Tacoma Intl
21h 55m
1 stop
BHD21:00Belfast City
7 Dec
BHD06:30Belfast City
13h 20m
1 stop
SEA11:50Seattle/Tacoma Intl
£483
Find similar
Delta
3 Dec
PDX11:35Portland
25h 25m
2 stops
BHD21:00Belfast City
10 Dec
BHD06:30Belfast City
12h 55m
1 stop
PDX11:25Portland
£486
Find similar
Delta
3 Dec
PDX11:35Portland
25h 25m
2 stops
BHD21:00Belfast City
10 Dec
BHD06:30Belfast City
17h 03m
2 stops
PDX15:33Portland
£493
Find similar

momondo Fare Finder

 
Customise your flight search to find flights from State of Washington to Northern Ireland 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 7 November 2025.
Use the filters below to find and compare flights from Washington to Northern Ireland that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

PortlandBelfast

PDX - BHD

PDXBHD

Portland

Mon 19/1

17:45-18:35

1 stop16h 50m

Belfast City

Thu 29/1

11:05-23:32

2 stops20h 27m

£482

SeattleBelfast

SEA - BHD

SEABHD

Seattle/Tacoma Intl

Wed 3/12

15:05-21:00

1 stop21h 55m

Belfast City

Sun 7/12

06:30-11:50

1 stop13h 20m

£483

PortlandBelfast

PDX - BHD

PDXBHD

Portland

Mon 19/1

12:35-16:05

2 stops19h 30m

Belfast City

Thu 29/1

06:35-20:22

2 stops21h 47m

£484

PortlandBelfast

PDX - BHD

PDXBHD

Portland

Thu 4/12

10:05-16:50

2 stops22h 45m

Belfast City

Mon 15/12

06:30-11:25

1 stop12h 55m

£487

SeattleBelfast

SEA - BHD

SEABHD

Seattle/Tacoma Intl

Wed 3/12

15:05-16:50

1 stop17h 45m

Belfast City

Sun 7/12

17:20-20:13

2 stops34h 53m

£490

PortlandBelfast

PDX - BHD

PDXBHD

Portland

Thu 4/12

10:05-16:50

2 stops22h 45m

Belfast City

Mon 15/12

06:30-17:43

2 stops19h 13m

£535

SeattleBelfast

SEA - BHD

SEABHD

Seattle/Tacoma Intl

Wed 3/12

07:20-21:00

2 stops29h 40m

Belfast City

Sun 7/12

17:20-20:13

2 stops34h 53m

£559

PortlandBelfast

PDX - BHD

PDXBHD

Portland

Thu 1/1

07:14-10:20

2 stops19h 06m

Belfast City

Wed 18/2

09:15-15:55

1 stop14h 40m

£572

PortlandBelfast

PDX - BHD

PDXBHD

Portland

Thu 1/1

07:14-10:20

2 stops19h 06m

Belfast City

Wed 18/2

12:25-23:20

2 stops18h 55m

£580

SeattleBelfast

SEA - BHD

SEABHD

Seattle/Tacoma Intl

Fri 27/3

14:35-10:30

1 stop12h 55m

Belfast City

Tue 31/3

06:35-23:08

2 stops24h 33m

£748

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 Northern Ireland from

How to get the cheapest flight ticket from State of Washington to Northern Ireland

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 Washington to Northern Ireland?

Virgin Atlantic, British Airways, and KLM are the most popular carriers operating from Washington to Northern Ireland

Cheap State of Washington to Northern Ireland flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from State of Washington to Northern Ireland

Direct flights

None
There are no direct flights from State of Washington to Northern Ireland. There are no popular flight routes from State of Washington to Northern Ireland.
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  • When did momondo last update prices for flights from Washington to Northern Ireland?

    Prices for flights from Washington to Northern Ireland were last updated today.

  • How old do you have to be to fly from Washington to Northern Ireland?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Washington to Northern Ireland.

  • What documentation or ID do you need to fly to Northern Ireland?

    The travel and health documents required for your trip to Northern Ireland can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Northern Ireland. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Why use momondo?

Why should I use momondo to find a flight deal from Washington to Northern Ireland?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Washington to Northern Ireland for you.

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

Yes. momondo allows you to filter the results for Washington to Northern Ireland flights to just show those with flexible booking policies.

How can momondo help me find flights from Washington to Northern Ireland?

Once all potential Washington to Northern Ireland flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Yes momondo offers price alerts on flights to Northern Ireland from Washington. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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