What is the cheapest airline that flies from Belfast City to Seattle/Tacoma Intl?

Aer Lingus is the most popular carrier operating from Belfast City to Seattle/Tacoma Intl

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.

$799 Cheap Flights from Belfast City Airport to Seattle in 2025

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Find the cheapest flights from Belfast City Airport to Seattle

Round-trip

One-way

Cheap round-trip flights

These are some of the best round-trip flight deals from Belfast City Airport to Seattle that have been recently found on momondo from popular airlines, departing in the coming months.

6:30 am - 3:57 pmBHD-SEA

17h 27m1 stop

6:07 pm - 9:15 pmSEA-BHD

19h 08m1 stop

$896KLM

Find Deal

mié., may. 21 - vie., may. 30

6:30 am - 2:31 pmBHD-SEA

16h 01m2 stops

1:55 pm - 9:15 pmSEA-BHD

23h 20m1 stop

$902KLM

Find Deal

mié., may. 21 - vie., may. 30

6:30 am - 3:57 pmBHD-SEA

17h 27m1 stop

6:07 pm - 4:55 pmSEA-BHD

14h 48m1 stop

$933KLM

Find Deal

sáb., may. 17 - sáb., may. 24

6:30 am - 4:36 pmBHD-SEA

18h 06m2 stops

6:07 pm - 4:55 pmSEA-BHD

14h 48m1 stop

$942Delta

Find Deal

sáb., may. 17 - sáb., may. 24

6:30 am - 6:46 pmBHD-SEA

20h 16m2 stops

11:55 am - 4:55 pmSEA-BHD

21h 00m2 stops

$973Delta

Find Deal

sáb., may. 17 - sáb., may. 24

6:30 am - 8:23 pmBHD-SEA

21h 53m2 stops

1:30 pm - 9:15 pmSEA-BHD

23h 45m2 stops

$1,027

Find Deal

mié., may. 21 - vie., may. 30

KLM flights from Belfast City Airport to Seattle

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

KLM

May 8

BHD5:25 pmBelfast City

30h 32m

1 stop

SEA3:57 pmSeattle/Tacoma Intl

May 22

SEA6:07 pmSeattle/Tacoma Intl

19h 08m

1 stop

BHD9:15 pmBelfast City

$741

Find similar

KLM

May 9

BHD6:30 amBelfast City

13h 10m

1 stop

SEA11:40 amSeattle/Tacoma Intl

May 30

SEA1:55 pmSeattle/Tacoma Intl

23h 20m

1 stop

BHD9:15 pmBelfast City

$887

Find similar

KLM

May 9

BHD6:30 amBelfast City

17h 27m

1 stop

SEA3:57 pmSeattle/Tacoma Intl

May 30

SEA1:55 pmSeattle/Tacoma Intl

23h 20m

1 stop

BHD9:15 pmBelfast City

$890

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

May 8

BHD6:35 amBelfast City

13h 00m

1 stop

SEA11:35 amSeattle/Tacoma Intl

May 22

SEA1:30 pmSeattle/Tacoma Intl

15h 45m

1 stop

BHD1:15 pmBelfast City

$746

Find similar

British Airways

May 8

BHD12:40 pmBelfast City

18h 29m

2 stops

SEA11:09 pmSeattle/Tacoma Intl

May 22

SEA1:30 pmSeattle/Tacoma Intl

15h 45m

1 stop

BHD1:15 pmBelfast City

$752

Find similar

British Airways

May 8

BHD6:35 amBelfast City

13h 00m

1 stop

SEA11:35 amSeattle/Tacoma Intl

May 22

SEA1:30 pmSeattle/Tacoma Intl

15h 45m

1 stop

BHD1:15 pmBelfast City

$796

Find similar

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

Prices

Airlines

What is the cheapest time of day to depart on your flight to Seattle?

Flying to Seattle from Belfast City Airport at noon is the least expensive time of day to depart. momondo users have found prices as low as $708 when looking at flights departing at noon. Flights to Seattle are more costly in the morning, with an average ticket price of $1,060. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

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	$1,082
Fastest flight time	16h 01m
Direct flights	None
Airports in Seattle	1 airport

The best one-way flight to Seattle from Belfast City Airport in the past 72 hours is $1,082. The best round-trip flight deal from Belfast City Airport to Seattle found on momondo in the last 72 hours is $896.

The fastest flight from Belfast City Airport to Seattle takes 16h 01m

There are no direct flights from Belfast City Airport to Seattle. Popular non-direct route for this connection is Belfast City Airport - Seattle/Tacoma Intl Airport.

There is 1 airport near Seattle: Seattle/Tacoma Intl (SEA)

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How far is Belfast City to Seattle/Tacoma Intl by plane?
There are 4463.4 mi between Belfast City and Seattle/Tacoma Intl. 16h 01m 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.

Leavenworth

Tacoma

SeaTac

Ocean Shores

Olympia

Kent

Renton

Federal Way

Tukwila

Kirkland

Puyallup

Lakewood

Lynnwood

Fife

Shoreline

Marysville

Centralia

Cle Elum

Redmond

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.