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.

$538 Cheap Flights from Belfast City Airport to Seattle in 2026

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.

7:00 am - 8:03 pm

BHD

SEA

21h 03m

1 stop

5:30 pm - 8:30 pm

SEA

BHD

19h 00m

1 stop

$923Multiple Airlines

Mon, Aug 31 - Sun, Sep 6

6:30 am - 11:35 am

BHD

SEA

13h 05m

1 stop

1:50 pm - 5:40 pm

SEA

BHD

19h 50m

2 stops

$947Multiple Airlines

Mon, Aug 31 - Sun, Sep 6

6:30 am - 11:35 am

BHD

SEA

13h 05m

1 stop

6:15 am - 10:30 am

SEA

BHD

20h 15m

2 stops

$949British Airways

Thu, Sep 17 - Sun, Sep 20

9:15 am - 4:50 pm

BHD

SEA

15h 35m

1 stop

6:45 pm - 4:50 pm

SEA

BHD

14h 05m

1 stop

$950British Airways

Wed, Nov 25 - Sun, Nov 29

6:30 am - 11:35 am

BHD

SEA

13h 05m

1 stop

6:15 am - 10:30 am

SEA

BHD

20h 15m

2 stops

$951British Airways

Thu, Sep 17 - Sun, Sep 20

6:30 am - 12:11 am

BHD

SEA

25h 41m

2 stops

6:15 am - 10:30 am

SEA

BHD

20h 15m

2 stops

$954British Airways

Thu, Sep 17 - Sun, Sep 20

6:30 am - 12:11 am

BHD

SEA

25h 41m

2 stops

6:15 am - 10:30 am

SEA

BHD

20h 15m

2 stops

$956British Airways

Thu, Sep 17 - Sun, Sep 20

6:30 am - 11:59 pm

BHD

SEA

25h 29m

2 stops

10:19 am - 5:40 pm

SEA

BHD

23h 21m

2 stops

$961Multiple Airlines

Mon, Aug 31 - Sun, Sep 6

8:35 pm - 11:35 am

BHD

SEA

23h 00m

1 stop

1:24 pm - 3:40 pm

SEA

BHD

18h 16m

2 stops

$962British Airways

Wed, Aug 26 - Wed, Sep 2

8:25 pm - 11:35 am

BHD

SEA

23h 10m

1 stop

1:24 pm - 3:30 pm

SEA

BHD

18h 06m

2 stops

$984British Airways

Tue, Aug 18 - Fri, Aug 28

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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

Sep 17

BHD6:30 amBelfast City

13h 05m

1 stop

SEA11:35 amSeattle/Tacoma Intl

Sep 20

SEA6:15 amSeattle/Tacoma Intl

20h 15m

2 stops

BHD10:30 amBelfast City

$949

British Airways

Nov 25

BHD9:15 amBelfast City

15h 35m

1 stop

SEA4:50 pmSeattle/Tacoma Intl

Nov 29

SEA6:45 pmSeattle/Tacoma Intl

14h 05m

1 stop

BHD4:50 pmBelfast City

$950

British Airways

Sep 17

BHD6:30 amBelfast City

13h 05m

1 stop

SEA11:35 amSeattle/Tacoma Intl

Sep 20

SEA6:15 amSeattle/Tacoma Intl

20h 15m

2 stops

BHD10:30 amBelfast City

$951

Aer Lingus flights from Belfast City Airport to Seattle

Our best Aer Lingus deals on Belfast City Airport to Seattle flight tickets

Aer Lingus

Aug 19

BHD9:50 amBelfast City

15h 20m

2 stops

SEA5:10 pmSeattle/Tacoma Intl

Aug 24

SEA7:10 pmSeattle/Tacoma Intl

14h 50m

2 stops

BHD6:00 pmBelfast City

$4,322

Aer Lingus

Aug 19

BHD9:50 amBelfast City

15h 20m

2 stops

SEA5:10 pmSeattle/Tacoma Intl

Aug 24

SEA7:10 pmSeattle/Tacoma Intl

14h 50m

2 stops

BHD6:00 pmBelfast City

$4,327

Aer Lingus

Aug 19

BHD9:50 amBelfast City

15h 20m

2 stops

SEA5:10 pmSeattle/Tacoma Intl

Aug 24

SEA7:10 pmSeattle/Tacoma Intl

17h 55m

2 stops

BHD9:05 pmBelfast City

$4,700

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

BelfastSeattle

BHD - SEA

BHDSEA

Belfast City

Mon 8/31

7:00 am-8:03 pm

1 stop21h 03m

Seattle/Tacoma Intl

Sun 9/6

5:30 pm-8:30 pm

1 stop19h 00m

$923

BelfastSeattle

BHD - SEA

BHDSEA

Belfast City

Mon 8/31

6:30 am-11:35 am

1 stop13h 05m

Seattle/Tacoma Intl

Sun 9/6

1:50 pm-5:40 pm

2 stops19h 50m

$947

BelfastSeattle

BHD - SEA

BHDSEA

Belfast City

Thu 9/17

6:30 am-11:35 am

1 stop13h 05m

Seattle/Tacoma Intl

Sun 9/20

6:15 am-10:30 am

2 stops20h 15m

$949

Quickest round-trip

BelfastSeattle

BHD - SEA

BHDSEA

Belfast City

Wed 11/25

9:15 am-4:50 pm

1 stop15h 35m

Seattle/Tacoma Intl

Sun 11/29

6:45 pm-4:50 pm

1 stop14h 05m

$950

BelfastSeattle

BHD - SEA

BHDSEA

Belfast City

Thu 9/17

6:30 am-11:35 am

1 stop13h 05m

Seattle/Tacoma Intl

Sun 9/20

6:15 am-10:30 am

2 stops20h 15m

$951

BelfastSeattle

BHD - SEA

BHDSEA

Belfast City

Thu 9/17

6:30 am-12:11 am

2 stops25h 41m

Seattle/Tacoma Intl

Sun 9/20

6:15 am-10:30 am

2 stops20h 15m

$954

BelfastSeattle

BHD - SEA

BHDSEA

Belfast City

Thu 9/17

6:30 am-12:11 am

2 stops25h 41m

Seattle/Tacoma Intl

Sun 9/20

6:15 am-10:30 am

2 stops20h 15m

$956

BelfastSeattle

BHD - SEA

BHDSEA

Belfast City

Mon 8/31

6:30 am-11:59 pm

2 stops25h 29m

Seattle/Tacoma Intl

Sun 9/6

10:19 am-5:40 pm

2 stops23h 21m

$961

BelfastSeattle

BHD - SEA

BHDSEA

Belfast City

Wed 8/26

8:35 pm-11:35 am

1 stop23h 00m

Seattle/Tacoma Intl

Wed 9/2

1:24 pm-3:40 pm

2 stops18h 16m

$962

BelfastSeattle

BHD - SEA

BHDSEA

Belfast City

Tue 8/18

8:25 pm-11:35 am

1 stop23h 10m

Seattle/Tacoma Intl

Fri 8/28

1:24 pm-3:30 pm

2 stops18h 06m

$984

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?

British Airways is the most popular carrier 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

Fastest flight time	13h 05m
Direct flights	None

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

Lynnwood

Redmond

Lakewood

Puyallup

Tukwila

Federal Way

Fife

Cle Elum

Marysville

Kirkland

Centralia

Shoreline

Lacey

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.