How do I get Price Alerts for flights from Belfast City Airport to Seattle?

You can take advantage of momondo’s Price Alerts by first searching for your flights to Belfast City Airport from Seattle . Flight offers will be shown to you in real-time. From there you can create a Price Alert by using our on-site widget.

How can I save money on flights from Belfast City Airport to Seattle with momondo?

By using tools like our “Price Calendar”, you can see the best days for return flights on your travels. Our “Price Forecast” tool uses AI to predict whether you should purchase or hold off on booking for potentially cheaper prices. Explore shows you all flight options from a city or airport to build your own unique adventure. The Discover blog also provides valuable insights for saving money while booking your experience. After searching you can toggle on “Price Alerts” to track prices for your desired flight and book at the ideal moment.

How does momondo find its flight prices?

We aggregate our prices from over 700+ competitors from airlines to OTAs. We operate in over 30 markets worldwide to show you a wide range of travel options.

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 are refreshed on a daily basis.

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

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, 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 required travel and health documents for your Seattle/Tacoma Intl Airport 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 Seattle/Tacoma Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

£554 Cheap Flights from Belfast City Airport to Seattle in 2025

1 adult

0 bags

Voted winner of Europe's Best Travel App 2023

Save money when you book flights with momondo

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customise your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Find the cheapest flights from Belfast City Airport to Seattle

Round-trip

One-way

Cheap return flights

06:40 - 11:35BHD-SEA

12h 55m1 stop

13:30 - 18:40SEA-BHD

21h 10m1 stop

£567British Airways

Find Deal

Mon, 15 Sep - Wed, 24 Sep

06:40 - 11:35BHD-SEA

12h 55m1 stop

13:30 - 18:40SEA-BHD

21h 10m1 stop

£568British Airways

Find Deal

Mon, 15 Sep - Wed, 24 Sep

19:30 - 11:10BHD-SEA

23h 40m1 stop

10:11 - 11:55SEA-BHD

17h 44m2 stops

£569British Airways

Find Deal

Mon, 15 Sep - Wed, 24 Sep

06:35 - 11:10BHD-SEA

12h 35m1 stop

13:30 - 10:35SEA-BHD

13h 05m1 stop

£575British Airways

Find Deal

Tue, 9 Sep - Tue, 16 Sep

06:30 - 19:00BHD-SEA

20h 30m2 stops

13:55 - 16:55SEA-BHD

19h 00m1 stop

£576Delta

Find Deal

Tue, 9 Sep - Tue, 16 Sep

19:30 - 20:09BHD-SEA

32h 39m2 stops

10:11 - 11:55SEA-BHD

17h 44m2 stops

£579British Airways

Find Deal

Mon, 15 Sep - Wed, 24 Sep

06:30 - 19:00BHD-SEA

20h 30m2 stops

09:40 - 16:55SEA-BHD

23h 15m2 stops

£580Delta

Find Deal

Tue, 9 Sep - Tue, 16 Sep

19:30 - 11:10BHD-SEA

23h 40m1 stop

10:11 - 11:55SEA-BHD

17h 44m2 stops

£632British Airways

Find Deal

Mon, 15 Sep - Wed, 24 Sep

06:40 - 21:23BHD-SEA

22h 43m2 stops

06:05 - 11:55SEA-BHD

21h 50m2 stops

£732Iberia

Find Deal

Mon, 15 Sep - Wed, 24 Sep

Delta flights from Belfast City Airport to Seattle

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

Delta

9 Sept

BHD06:30Belfast City

20h 30m

2 stops

SEA19:00Seattle/Tacoma Intl

16 Sept

SEA13:55Seattle/Tacoma Intl

19h 00m

1 stop

BHD16:55Belfast City

£576

Find similar

Delta

9 Sept

BHD06:30Belfast City

20h 30m

2 stops

SEA19:00Seattle/Tacoma Intl

16 Sept

SEA09:40Seattle/Tacoma Intl

23h 15m

2 stops

BHD16:55Belfast City

£580

Find similar

British Airways flights from Belfast City Airport to Seattle

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

British Airways

15 Sept

BHD06:40Belfast City

12h 55m

1 stop

SEA11:35Seattle/Tacoma Intl

24 Sept

SEA13:30Seattle/Tacoma Intl

21h 10m

1 stop

BHD18:40Belfast City

£567

Find similar

British Airways

15 Sept

BHD06:40Belfast City

12h 55m

1 stop

SEA11:35Seattle/Tacoma Intl

24 Sept

SEA13:30Seattle/Tacoma Intl

21h 10m

1 stop

BHD18:40Belfast City

£568

Find similar

British Airways

15 Sept

BHD19:30Belfast City

23h 40m

1 stop

SEA11:10Seattle/Tacoma Intl

24 Sept

SEA10:11Seattle/Tacoma Intl

17h 44m

2 stops

BHD11:55Belfast City

£569

Find similar

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

BelfastSeattle

BHD - SEA

BHDSEA

Belfast City

Mon 15/9

06:40-11:35

1 stop12h 55m

Seattle/Tacoma Intl

Wed 24/9

13:30-18:40

1 stop21h 10m

£567

BelfastSeattle

BHD - SEA

BHDSEA

Belfast City

Mon 15/9

06:40-11:35

1 stop12h 55m

Seattle/Tacoma Intl

Wed 24/9

13:30-18:40

1 stop21h 10m

£568

BelfastSeattle

BHD - SEA

BHDSEA

Belfast City

Mon 15/9

19:30-11:10

1 stop23h 40m

Seattle/Tacoma Intl

Wed 24/9

10:11-11:55

2 stops17h 44m

£569

BelfastSeattle

BHD - SEA

BHDSEA

Belfast City

Tue 9/9

06:35-11:10

1 stop12h 35m

Seattle/Tacoma Intl

Tue 16/9

13:30-10:35

1 stop13h 05m

£575

BelfastSeattle

BHD - SEA

BHDSEA

Belfast City

Tue 9/9

06:30-19:00

2 stops20h 30m

Seattle/Tacoma Intl

Tue 16/9

13:55-16:55

1 stop19h 00m

£576

BelfastSeattle

BHD - SEA

BHDSEA

Belfast City

Mon 15/9

19:30-20:09

2 stops32h 39m

Seattle/Tacoma Intl

Wed 24/9

10:11-11:55

2 stops17h 44m

£579

BelfastSeattle

BHD - SEA

BHDSEA

Belfast City

Tue 9/9

06:30-19:00

2 stops20h 30m

Seattle/Tacoma Intl

Tue 16/9

09:40-16:55

2 stops23h 15m

£580

BelfastSeattle

BHD - SEA

BHDSEA

Belfast City

Mon 15/9

19:30-11:10

1 stop23h 40m

Seattle/Tacoma Intl

Wed 24/9

10:11-11:55

2 stops17h 44m

£632

BelfastSeattle

BHD - SEA

BHDSEA

Belfast City

Mon 15/9

06:40-21:23

2 stops22h 43m

Seattle/Tacoma Intl

Wed 24/9

06:05-11:55

2 stops21h 50m

£732

Flights are sorted by cheapest return flights first.

Sorted by cheapest first

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 return 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

Direct flights	None

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

How far is Belfast City to Seattle/Tacoma Intl by plane?
The distance between Belfast City and Seattle/Tacoma Intl is about 4463.4 mi. By plane, this route typically takes 12h 35m.
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 are refreshed on a daily basis.
How old do you have to be to fly from Belfast City Airport to Seattle/Tacoma Intl Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, 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 required travel and health documents for your Seattle/Tacoma Intl Airport 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 Seattle/Tacoma Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

How do I get Price Alerts for flights from Belfast City Airport to Seattle?
You can take advantage of momondo’s Price Alerts by first searching for your flights to Belfast City Airport from Seattle. Flight offers will be shown to you in real-time. From there you can create a Price Alert by using our on-site widget.
How can I save money on flights from Belfast City Airport to Seattle with momondo?
By using tools like our “Price Calendar”, you can see the best days for return flights on your travels. Our “Price Forecast” tool uses AI to predict whether you should purchase or hold off on booking for potentially cheaper prices. Explore shows you all flight options from a city or airport to build your own unique adventure. The Discover blog also provides valuable insights for saving money while booking your experience. After searching you can toggle on “Price Alerts” to track prices for your desired flight and book at the ideal moment.
How does momondo find its flight prices?
We aggregate our prices from over 700+ competitors from airlines to OTAs. We operate in over 30 markets worldwide to show you a wide range of travel options.

Kent

SeaTac

Fife

Tukwila

Renton

Why use momondo?

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

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

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

All flight searches from Belfast to Seattle on momondo can be filtered to show those which offer flexible booking policies.

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

Once all potential Belfast to Seattle 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 Belfast to Seattle right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Belfast to Seattle flights. All you need is a valid email address and we will do the rest; it is that quick and easy.