How do I get Price Alerts for flights from State of Washington to Northern Ireland?

Search flight deals from State of Washington to Northern Ireland . While viewing offers you’ll have the option to create a Price Alert.

How can I save money on flights from State of Washington to Northern Ireland with momondo?

Leverage our AI within our “Price Forecast” tool, which predicts if it’s better to book now or wait until prices decrease. You can strategically pick the best days to fly and save money on your trip by using our “Price Calendar” tool. “Explore” shows an overview of how much it costs to fly to anywhere from a selected city or airport. Our “Discover” content is a great option for travel inspiration and money-saving tips, while “Price Alerts” will update you when prices change, so you can book when fares are right.

How does momondo find its flight prices?

We show prices from over 700+ competitors with a single click. With options from airlines and OTAs from across our 30 international markets, we are able to show you a diverse range of deals to create your adventure.

When did momondo last update prices for flights from Washington to Northern Ireland?

Prices for flights from Washington to Northern Ireland are updated daily.

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 required travel and health documents for your Northern Ireland 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 Northern Ireland. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$818 Cheap Flights from Washington to Northern Ireland in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Washington to Northern Ireland

Round-trip

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

5:45 pm - 9:20 amSEA Seattle/Tacoma Intl-BHD Belfast City

31h 35m1 stop Amsterdam Schiphol

5:15 pm - 11:47 amBHD Belfast City-SEA Seattle/Tacoma Intl

26h 32m1 stop Amsterdam Schiphol

$818Delta

Sun, Oct 11 - Wed, Nov 4

12:30 pm - 4:55 pmSEA Seattle/Tacoma Intl-BHD Belfast City

20h 25m2 stops Los Angeles Amsterdam Schiphol

9:40 am - 11:47 amBHD Belfast City-SEA Seattle/Tacoma Intl

34h 07m1 stop Amsterdam Schiphol

$822Delta

Sun, Oct 11 - Wed, Nov 4

5:45 pm - 4:55 pmSEA Seattle/Tacoma Intl-BHD Belfast City

15h 10m1 stop Amsterdam Schiphol

9:40 am - 4:37 pmBHD Belfast City-SEA Seattle/Tacoma Intl

38h 57m2 stops Amsterdam Schiphol San Francisco

$828Delta

Sun, Oct 11 - Mon, Nov 2

9:45 am - 4:55 pmSEA Seattle/Tacoma Intl-BHD Belfast City

23h 10m2 stops Los Angeles Amsterdam Schiphol

5:15 pm - 6:52 pmBHD Belfast City-SEA Seattle/Tacoma Intl

33h 37m2 stops Amsterdam Schiphol Salt Lake City

$832Delta

Sun, Oct 11 - Wed, Nov 4

9:35 pm - 4:55 pmSEA Seattle/Tacoma Intl-BHD Belfast City

35h 20m2 stops Los Angeles Amsterdam Schiphol

9:40 am - 11:47 amBHD Belfast City-SEA Seattle/Tacoma Intl

34h 07m1 stop Amsterdam Schiphol

$833Delta

Sat, Oct 10 - Wed, Nov 4

9:35 pm - 4:55 pmSEA Seattle/Tacoma Intl-BHD Belfast City

35h 20m2 stops Los Angeles Amsterdam Schiphol

9:40 am - 8:27 pmBHD Belfast City-SEA Seattle/Tacoma Intl

42h 47m2 stops Amsterdam Schiphol Los Angeles

$838Delta

Sat, Oct 10 - Mon, Nov 2

1:45 pm - 4:55 pmSEA Seattle/Tacoma Intl-BHD Belfast City

19h 10m1 stop Amsterdam Schiphol

9:40 am - 11:47 amBHD Belfast City-SEA Seattle/Tacoma Intl

34h 07m1 stop Amsterdam Schiphol

$868Delta

Fri, Oct 9 - Wed, Nov 4

11:05 am - 4:55 pmSEA Seattle/Tacoma Intl-BHD Belfast City

21h 50m2 stops Salt Lake City Amsterdam Schiphol

5:15 pm - 11:47 amBHD Belfast City-SEA Seattle/Tacoma Intl

26h 32m1 stop Amsterdam Schiphol

$872Delta

Sun, Oct 11 - Sun, Nov 8

1:45 pm - 4:55 pmSEA Seattle/Tacoma Intl-BHD Belfast City

19h 10m1 stop Amsterdam Schiphol

5:15 pm - 7:02 pmBHD Belfast City-SEA Seattle/Tacoma Intl

33h 47m2 stops Amsterdam Schiphol Salt Lake City

$878Delta

Fri, Oct 9 - Tue, Nov 3

6:45 pm - 6:35 pmSEA Seattle/Tacoma Intl-BHD Belfast City

15h 50m1 stop London Heathrow

5:50 pm - 4:50 pmBHD Belfast City-SEA Seattle/Tacoma Intl

31h 00m1 stop London Heathrow

$883British Airways

Mon, Jan 11 - Thu, Jan 14

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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

Jan 11

SEA6:45 pmSeattle/Tacoma Intl

15h 50m

1 stop

BHD6:35 pmBelfast City

Jan 14

BHD5:50 pmBelfast City

31h 00m

1 stop

SEA4:50 pmSeattle/Tacoma Intl

$883

British Airways

Jan 11

SEA6:45 pmSeattle/Tacoma Intl

15h 50m

1 stop

BHD6:35 pmBelfast City

Jan 14

BHD5:50 pmBelfast City

31h 00m

1 stop

SEA4:50 pmSeattle/Tacoma Intl

$884

British Airways

Jan 11

SEA6:45 pmSeattle/Tacoma Intl

15h 50m

1 stop

BHD6:35 pmBelfast City

Jan 14

BHD5:50 pmBelfast City

31h 00m

1 stop

SEA4:50 pmSeattle/Tacoma Intl

$885

Delta flights from State of Washington to Northern Ireland

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

Delta

Oct 11

SEA5:45 pmSeattle/Tacoma Intl

31h 35m

1 stop

BHD9:20 amBelfast City

Nov 4

BHD5:15 pmBelfast City

26h 32m

1 stop

SEA11:47 amSeattle/Tacoma Intl

$818

Delta

Oct 11

SEA12:30 pmSeattle/Tacoma Intl

20h 25m

2 stops

BHD4:55 pmBelfast City

Nov 4

BHD9:40 amBelfast City

34h 07m

1 stop

SEA11:47 amSeattle/Tacoma Intl

$822

Delta

Oct 11

SEA5:45 pmSeattle/Tacoma Intl

31h 35m

1 stop

BHD9:20 amBelfast City

Nov 3

BHD5:15 pmBelfast City

36h 50m

2 stops

SEA10:05 pmSeattle/Tacoma Intl

$828

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

Cheapest round-trip

SeattleBelfast

SEA Seattle/Tacoma Intl - BHD Belfast City

SEABHD

Seattle/Tacoma Intl

Sun 10/11

5:45 pm-9:20 am

1 stop31h 35m

Belfast City

Wed 11/4

5:15 pm-11:47 am

1 stop26h 32m

$818

SeattleBelfast

SEA Seattle/Tacoma Intl - BHD Belfast City

SEABHD

Seattle/Tacoma Intl

Sun 10/11

12:30 pm-4:55 pm

2 stops20h 25m

Belfast City

Wed 11/4

9:40 am-11:47 am

1 stop34h 07m

$822

SeattleBelfast

SEA Seattle/Tacoma Intl - BHD Belfast City

SEABHD

Seattle/Tacoma Intl

Sun 10/11

5:45 pm-4:55 pm

1 stop15h 10m

Belfast City

Mon 11/2

9:40 am-4:37 pm

2 stops38h 57m

$828

SeattleBelfast

SEA Seattle/Tacoma Intl - BHD Belfast City

SEABHD

Seattle/Tacoma Intl

Sun 10/11

9:45 am-4:55 pm

2 stops23h 10m

Belfast City

Wed 11/4

5:15 pm-6:52 pm

2 stops33h 37m

$832

SeattleBelfast

SEA Seattle/Tacoma Intl - BHD Belfast City

SEABHD

Seattle/Tacoma Intl

Sat 10/10

9:35 pm-4:55 pm

2 stops35h 20m

Belfast City

Wed 11/4

9:40 am-11:47 am

1 stop34h 07m

$833

SeattleBelfast

SEA Seattle/Tacoma Intl - BHD Belfast City

SEABHD

Seattle/Tacoma Intl

Sat 10/10

9:35 pm-4:55 pm

2 stops35h 20m

Belfast City

Mon 11/2

9:40 am-8:27 pm

2 stops42h 47m

$838

SeattleBelfast

SEA Seattle/Tacoma Intl - BHD Belfast City

SEABHD

Seattle/Tacoma Intl

Fri 10/9

1:45 pm-4:55 pm

1 stop19h 10m

Belfast City

Wed 11/4

9:40 am-11:47 am

1 stop34h 07m

$868

SeattleBelfast

SEA Seattle/Tacoma Intl - BHD Belfast City

SEABHD

Seattle/Tacoma Intl

Sun 10/11

11:05 am-4:55 pm

2 stops21h 50m

Belfast City

Sun 11/8

5:15 pm-11:47 am

1 stop26h 32m

$872

SeattleBelfast

SEA Seattle/Tacoma Intl - BHD Belfast City

SEABHD

Seattle/Tacoma Intl

Fri 10/9

1:45 pm-4:55 pm

1 stop19h 10m

Belfast City

Tue 11/3

5:15 pm-7:02 pm

2 stops33h 47m

$878

Quickest round-trip

SeattleBelfast

SEA Seattle/Tacoma Intl - BHD Belfast City

SEABHD

Seattle/Tacoma Intl

Mon 1/11

6:45 pm-6:35 pm

1 stop15h 50m

Belfast City

Thu 1/14

5:50 pm-4:50 pm

1 stop31h 00m

$883

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

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

Best Price Found	$818
Fastest flight time	12h 20m
Direct flights	None

The best flight deal from State of Washington to Northern Ireland found on momondo in the last 72 hours is $818

The fastest flight from State of Washington to Northern Ireland takes 12h 20m

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

Frequently asked questions about flying from Washington to Northern Ireland

When did momondo last update prices for flights from Washington to Northern Ireland?
Prices for flights from Washington to Northern Ireland are updated daily.
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 required travel and health documents for your Northern Ireland 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 Northern Ireland. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from State of Washington to Northern Ireland

Compare and see reviews for airlines that fly from State of Washington to Northern Ireland with momondo

Airline	Rating	Free Cancellation	Price
British Airways	PriceFrom $822	Free Cancellation	Rating 6.7 8,235 reviews		Search British Airways flights

Frequently asked questions about flying from Washington to Northern Ireland

How do I get Price Alerts for flights from State of Washington to Northern Ireland?
Search flight deals from State of Washington to Northern Ireland. While viewing offers you’ll have the option to create a Price Alert.
How can I save money on flights from State of Washington to Northern Ireland with momondo?
Leverage our AI within our “Price Forecast” tool, which predicts if it’s better to book now or wait until prices decrease. You can strategically pick the best days to fly and save money on your trip by using our “Price Calendar” tool. “Explore” shows an overview of how much it costs to fly to anywhere from a selected city or airport. Our “Discover” content is a great option for travel inspiration and money-saving tips, while “Price Alerts” will update you when prices change, so you can book when fares are right.
How does momondo find its flight prices?
We show prices from over 700+ competitors with a single click. With options from airlines and OTAs from across our 30 international markets, we are able to show you a diverse range of deals to create your adventure.

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Washington to Northern Ireland. Millions of users trust and use momondo every year so you are in good hands.

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

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

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Northern Ireland from Washington.

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

Price alerts on flights to Northern Ireland from Washington 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.