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.

£330 Cheap Flights from Washington to Northern Ireland in 2026

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Find the cheapest flights from Washington to Northern Ireland

Round-trip

One-way

Last minute

Cheap return flights

Enter your travel dates to find the best prices.

19:30 - 19:50

PDX

BHD

16h 20m

1 stop

10:05 - 17:40

BHD

PDX

15h 35m

1 stop

£509British Airways

Wed, 8 Apr - Wed, 15 Apr

19:30 - 18:45

PDX

BHD

15h 15m

1 stop

10:05 - 22:42

BHD

PDX

20h 37m

2 stops

£541British Airways

Wed, 8 Apr - Wed, 15 Apr

13:35 - 15:30

SEA

BHD

17h 55m

1 stop

12:45 - 18:25

BHD

SEA

13h 40m

1 stop

£590British Airways

Fri, 8 May - Thu, 14 May

19:50 - 18:35

SEA

BHD

15h 45m

1 stop

19:25 - 12:30

BHD

SEA

24h 05m

1 stop

£599British Airways

Mon, 9 Mar - Mon, 16 Mar

13:23 - 15:40

PDX

BHD

18h 17m

2 stops

10:05 - 22:42

BHD

PDX

20h 37m

2 stops

£599British Airways

Wed, 8 Apr - Wed, 15 Apr

20:20 - 18:45

SEA

BHD

14h 25m

1 stop

16:25 - 11:35

BHD

SEA

27h 10m

1 stop

£601British Airways

Mon, 8 Jun - Tue, 16 Jun

13:35 - 15:30

SEA

BHD

17h 55m

1 stop

09:35 - 22:38

BHD

SEA

21h 03m

2 stops

£608Multiple Airlines

Fri, 8 May - Thu, 14 May

19:50 - 16:50

SEA

BHD

14h 00m

1 stop

11:25 - 17:55

BHD

SEA

13h 30m

1 stop

£610British Airways

Sun, 8 Mar - Tue, 17 Mar

13:37 - 14:15

SEA

BHD

17h 38m

2 stops

19:25 - 12:30

BHD

SEA

24h 05m

1 stop

£622British Airways

Mon, 9 Mar - Mon, 16 Mar

16:05 - 16:40

SEA

BHD

17h 35m

1 stop

17:30 - 11:45

BHD

SEA

26h 15m

1 stop

£643Multiple Airlines

Thu, 26 Mar - Thu, 9 Apr

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

8 Apr

PDX19:30Portland

16h 20m

1 stop

BHD19:50Belfast City

15 Apr

BHD10:05Belfast City

15h 35m

1 stop

PDX17:40Portland

£509

British Airways

8 Apr

PDX19:30Portland

15h 15m

1 stop

BHD18:45Belfast City

15 Apr

BHD10:05Belfast City

20h 37m

2 stops

PDX22:42Portland

£541

British Airways

8 May

SEA13:35Seattle/Tacoma Intl

17h 55m

1 stop

BHD15:30Belfast City

14 May

BHD12:45Belfast City

13h 40m

1 stop

SEA18:25Seattle/Tacoma Intl

£590

Aer Lingus flights from State of Washington to Northern Ireland

Our best Aer Lingus deals on State of Washington to Northern Ireland flight tickets

Aer Lingus

8 Mar

SEA21:05Seattle/Tacoma Intl

16h 45m

2 stops

BHD20:50Belfast City

17 Mar

BHD10:10Belfast City

40h 10m

2 stops

SEA19:20Seattle/Tacoma Intl

£644

Aer Lingus

9 Mar

SEA21:05Seattle/Tacoma Intl

32h 45m

2 stops

BHD12:50Belfast City

17 Mar

BHD18:50Belfast City

31h 30m

2 stops

SEA19:20Seattle/Tacoma Intl

£648

Aer Lingus

9 Mar

SEA21:05Seattle/Tacoma Intl

29h 10m

2 stops

BHD09:15Belfast City

16 Mar

BHD06:55Belfast City

19h 25m

2 stops

SEA19:20Seattle/Tacoma Intl

£675

momondo Fare Finder

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

Wed 8/4

19:30-19:50

1 stop16h 20m

Belfast City

Wed 15/4

10:05-17:40

1 stop15h 35m

£509

PortlandBelfast

PDX - BHD

PDXBHD

Portland

Wed 8/4

19:30-18:45

1 stop15h 15m

Belfast City

Wed 15/4

10:05-22:42

2 stops20h 37m

£541

SeattleBelfast

SEA - BHD

SEABHD

Seattle/Tacoma Intl

Fri 8/5

13:35-15:30

1 stop17h 55m

Belfast City

Thu 14/5

12:45-18:25

1 stop13h 40m

£590

SeattleBelfast

SEA - BHD

SEABHD

Seattle/Tacoma Intl

Mon 9/3

19:50-18:35

1 stop15h 45m

Belfast City

Mon 16/3

19:25-12:30

1 stop24h 05m

£599

PortlandBelfast

PDX - BHD

PDXBHD

Portland

Wed 8/4

13:23-15:40

2 stops18h 17m

Belfast City

Wed 15/4

10:05-22:42

2 stops20h 37m

£599

SeattleBelfast

SEA - BHD

SEABHD

Seattle/Tacoma Intl

Mon 8/6

20:20-18:45

1 stop14h 25m

Belfast City

Tue 16/6

16:25-11:35

1 stop27h 10m

£601

SeattleBelfast

SEA - BHD

SEABHD

Seattle/Tacoma Intl

Fri 8/5

13:35-15:30

1 stop17h 55m

Belfast City

Thu 14/5

09:35-22:38

2 stops21h 03m

£608

SeattleBelfast

SEA - BHD

SEABHD

Seattle/Tacoma Intl

Sun 8/3

19:50-16:50

1 stop14h 00m

Belfast City

Tue 17/3

11:25-17:55

1 stop13h 30m

£610

SeattleBelfast

SEA - BHD

SEABHD

Seattle/Tacoma Intl

Mon 9/3

13:37-14:15

2 stops17h 38m

Belfast City

Mon 16/3

19:25-12:30

1 stop24h 05m

£622

SeattleBelfast

SEA - BHD

SEABHD

Seattle/Tacoma Intl

Thu 26/3

16:05-16:40

1 stop17h 35m

Belfast City

Thu 9/4

17:30-11:45

1 stop26h 15m

£643

Flights are sorted by cheapest return flights first.

Showing 1-10 of 15 resultsSorted by cheapest first

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?

British Airways is the most popular carrier 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

Fastest flight time	12h 30m
Direct flights	None

The fastest flight from State of Washington to Northern Ireland takes 12h 30m

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.

Search flight deals

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.