When did momondo last update prices for flights from Belfast City Airport to Seattle/Tacoma Intl Airport?

Prices for flights from Belfast City Airport to Seattle/Tacoma Intl Airport refresh daily.

How old do you have to be to fly from Belfast City Airport to Seattle/Tacoma 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 Belfast City Airport to Seattle/Tacoma Intl Airport.

What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?

The necessary travel and health documents for your Seattle/Tacoma Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$674 Cheap Flights from Belfast City Airport to Seattle in 2026/27

Find the cheapest flights from Belfast City Airport to Seattle

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

9:50 am - 4:35 pmBHD Belfast City-SEA Seattle/Tacoma Intl

14h 45m1 stop Amsterdam Schiphol

7:32 am - 9:20 amSEA Seattle/Tacoma Intl-BHD Belfast City

17h 48m2 stops Portland Amsterdam Schiphol

$790Delta

Thu, Oct 15 - Thu, Oct 22

9:50 am - 10:49 pmBHD Belfast City-SEA Seattle/Tacoma Intl

20h 59m2 stops Amsterdam Schiphol Boston Logan Intl

7:32 am - 9:20 amSEA Seattle/Tacoma Intl-BHD Belfast City

17h 48m2 stops Portland Amsterdam Schiphol

$797Delta

Thu, Oct 15 - Thu, Oct 22

6:30 am - 11:35 amBHD Belfast City-SEA Seattle/Tacoma Intl

13h 05m1 stop London Heathrow

8:24 am - 12:55 pmSEA Seattle/Tacoma Intl-BHD Belfast City

20h 31m2 stops Philadelphia London Heathrow

$801British Airways

Thu, Oct 15 - Mon, Oct 19

2:20 pm - 11:35 amBHD Belfast City-SEA Seattle/Tacoma Intl

29h 15m1 stop London Heathrow

8:20 pm - 8:35 pmSEA Seattle/Tacoma Intl-BHD Belfast City

16h 15m1 stop London Heathrow

$802British Airways

Thu, Oct 15 - Mon, Oct 19

6:30 am - 11:35 amBHD Belfast City-SEA Seattle/Tacoma Intl

13h 05m1 stop London Heathrow

6:12 am - 12:55 pmSEA Seattle/Tacoma Intl-BHD Belfast City

22h 43m2 stops Chicago O'Hare Intl London Heathrow

$803British Airways

Thu, Oct 15 - Mon, Oct 19

6:30 am - 6:25 pmBHD Belfast City-SEA Seattle/Tacoma Intl

19h 55m1 stop London Heathrow

8:24 am - 12:55 pmSEA Seattle/Tacoma Intl-BHD Belfast City

20h 31m2 stops Philadelphia London Heathrow

$806British Airways

Thu, Oct 15 - Mon, Oct 19

11:05 am - 4:50 pmBHD Belfast City-SEA Seattle/Tacoma Intl

13h 45m1 stop London Heathrow

10:17 am - 4:50 pmSEA Seattle/Tacoma Intl-BHD Belfast City

22h 33m2 stops Chicago O'Hare Intl London Heathrow

$809British Airways

Thu, Jan 14 - Sun, Jan 17

11:05 am - 4:50 pmBHD Belfast City-SEA Seattle/Tacoma Intl

13h 45m1 stop London Heathrow

10:17 am - 4:50 pmSEA Seattle/Tacoma Intl-BHD Belfast City

22h 33m2 stops Chicago O'Hare Intl London Heathrow

$814British Airways

Thu, Jan 14 - Sun, Jan 17

11:05 am - 12:43 amBHD Belfast City-SEA Seattle/Tacoma Intl

21h 38m2 stops London Heathrow Chicago O'Hare Intl

6:06 am - 10:45 amSEA Seattle/Tacoma Intl-BHD Belfast City

20h 39m2 stops Chicago O'Hare Intl London Heathrow

$815British Airways

Thu, Jan 14 - Sun, Jan 17

11:05 am - 4:50 pmBHD Belfast City-SEA Seattle/Tacoma Intl

13h 45m1 stop London Heathrow

10:17 am - 4:50 pmSEA Seattle/Tacoma Intl-BHD Belfast City

22h 33m2 stops Chicago O'Hare Intl London Heathrow

$816British Airways

Thu, Jan 14 - Sun, Jan 17

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British Airways flights from Belfast City Airport to Seattle

Our best British Airways deals on Belfast City Airport to Seattle flight tickets

British Airways

Oct 15

BHD6:30 amBelfast City

13h 05m

1 stop

SEA11:35 amSeattle/Tacoma Intl

Oct 19

SEA8:24 amSeattle/Tacoma Intl

20h 31m

2 stops

BHD12:55 pmBelfast City

$801

British Airways

Oct 15

BHD2:20 pmBelfast City

29h 15m

1 stop

SEA11:35 amSeattle/Tacoma Intl

Oct 19

SEA8:20 pmSeattle/Tacoma Intl

16h 15m

1 stop

BHD8:35 pmBelfast City

$802

British Airways

Oct 15

BHD6:30 amBelfast City

13h 05m

1 stop

SEA11:35 amSeattle/Tacoma Intl

Oct 19

SEA6:12 amSeattle/Tacoma Intl

22h 43m

2 stops

BHD12:55 pmBelfast City

$803

Delta flights from Belfast City Airport to Seattle

Our best Delta deals on Belfast City Airport to Seattle flight tickets

Delta

Oct 15

BHD9:50 amBelfast City

14h 45m

1 stop

SEA4:35 pmSeattle/Tacoma Intl

Oct 22

SEA7:32 amSeattle/Tacoma Intl

17h 48m

2 stops

BHD9:20 amBelfast City

$790

Delta

Oct 15

BHD9:50 amBelfast City

20h 59m

2 stops

SEA10:49 pmSeattle/Tacoma Intl

Oct 22

SEA7:32 amSeattle/Tacoma Intl

17h 48m

2 stops

BHD9:20 amBelfast City

$797

momondo Fare Finder

Use the filters below to find and compare flights from Belfast City Airport to Seattle that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

BelfastSeattle

BHD Belfast City - SEA Seattle/Tacoma Intl

BHDSEA

Belfast City

Thu 10/15

9:50 am-4:35 pm

1 stop14h 45m

Seattle/Tacoma Intl

Thu 10/22

7:32 am-9:20 am

2 stops17h 48m

$790

BelfastSeattle

BHD Belfast City - SEA Seattle/Tacoma Intl

BHDSEA

Belfast City

Thu 10/15

9:50 am-10:49 pm

2 stops20h 59m

Seattle/Tacoma Intl

Thu 10/22

7:32 am-9:20 am

2 stops17h 48m

$797

BelfastSeattle

BHD Belfast City - SEA Seattle/Tacoma Intl

BHDSEA

Belfast City

Thu 10/15

6:30 am-11:35 am

1 stop13h 05m

Seattle/Tacoma Intl

Mon 10/19

8:24 am-12:55 pm

2 stops20h 31m

$801

BelfastSeattle

BHD Belfast City - SEA Seattle/Tacoma Intl

BHDSEA

Belfast City

Thu 10/15

2:20 pm-11:35 am

1 stop29h 15m

Seattle/Tacoma Intl

Mon 10/19

8:20 pm-8:35 pm

1 stop16h 15m

$802

BelfastSeattle

BHD Belfast City - SEA Seattle/Tacoma Intl

BHDSEA

Belfast City

Thu 10/15

6:30 am-11:35 am

1 stop13h 05m

Seattle/Tacoma Intl

Mon 10/19

6:12 am-12:55 pm

2 stops22h 43m

$803

BelfastSeattle

BHD Belfast City - SEA Seattle/Tacoma Intl

BHDSEA

Belfast City

Thu 10/15

6:30 am-6:25 pm

1 stop19h 55m

Seattle/Tacoma Intl

Mon 10/19

8:24 am-12:55 pm

2 stops20h 31m

$806

BelfastSeattle

BHD Belfast City - SEA Seattle/Tacoma Intl

BHDSEA

Belfast City

Thu 1/14

11:05 am-4:50 pm

1 stop13h 45m

Seattle/Tacoma Intl

Sun 1/17

10:17 am-4:50 pm

2 stops22h 33m

$809

BelfastSeattle

BHD Belfast City - SEA Seattle/Tacoma Intl

BHDSEA

Belfast City

Thu 1/14

11:05 am-4:50 pm

1 stop13h 45m

Seattle/Tacoma Intl

Sun 1/17

10:17 am-4:50 pm

2 stops22h 33m

$814

BelfastSeattle

BHD Belfast City - SEA Seattle/Tacoma Intl

BHDSEA

Belfast City

Thu 1/14

11:05 am-12:43 am

2 stops21h 38m

Seattle/Tacoma Intl

Sun 1/17

6:06 am-10:45 am

2 stops20h 39m

$815

BelfastSeattle

BHD Belfast City - SEA Seattle/Tacoma Intl

BHDSEA

Belfast City

Thu 1/14

11:05 am-4:50 pm

1 stop13h 45m

Seattle/Tacoma Intl

Sun 1/17

10:17 am-4:50 pm

2 stops22h 33m

$816

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 16 resultsSorted by cheapest first

How to get the cheapest flight ticket from Belfast City Airport to Seattle

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 Belfast City to Seattle/Tacoma Intl?

Aer Lingus and KLM are the most popular carriers operating from Belfast City to Seattle/Tacoma Intl

When to book flights from Belfast City Airport to Seattle

Are you open to changing your travel dates? Check out the ideal times to fly from Belfast City Airport to Seattle according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Belfast City Airport to Seattle (BHD to SEA) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Belfast City Airport to Seattle

Best Price Found	$674
Fastest flight time	13h 05m
Direct flights	None

The best one-way flight to Seattle from Belfast City Airport in the past 72 hours is $674. The best round-trip flight deal from Belfast City Airport to Seattle found on momondo in the last 72 hours is $790.

The fastest flight from Belfast City Airport to Seattle takes 13h 05m

There are no direct flights from Belfast City Airport to Seattle. There are no popular flight routes from Belfast City Airport to Seattle.

Search flight deals

Frequently asked questions about flying from Belfast City Airport to Seattle

How far is Belfast City to Seattle/Tacoma Intl by plane?
There are 4463.4 mi between Belfast City and Seattle/Tacoma Intl. 13h 05m is a normal flight duration for this route.
When did momondo last update prices for flights from Belfast City Airport to Seattle/Tacoma Intl Airport?
Prices for flights from Belfast City Airport to Seattle/Tacoma Intl Airport refresh daily.
How old do you have to be to fly from Belfast City Airport to Seattle/Tacoma 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 Belfast City Airport to Seattle/Tacoma Intl Airport.
What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?
The necessary travel and health documents for your Seattle/Tacoma Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Tacoma

Leavenworth

SeaTac

Ocean Shores

Renton

Olympia

Kent

Redmond

Lakewood

Federal Way

Fife

Tukwila

Puyallup

Lynnwood

Cle Elum

Marysville

Lacey

Centralia

Kirkland

Shoreline

Why use momondo?

Why should I use momondo to find a flight deal from Belfast to Seattle?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Seattle from Belfast.

Can I find flights from Belfast to Seattle with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Seattle from Belfast with this policy.

How can momondo help me find flights from Belfast to Seattle?

momondo provides multiple filters to help you find the best flight to Seattle from Belfast. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

If you are not ready to book a flight from Belfast to Seattle now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Seattle and let you know when they change.