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Cheap flights from Belfast City Airport to Seattle from $710

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Belfast City Airport to Seattle departing on 2/4. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Belfast City Airport to Seattle

Cheap round-trip flights

Enter your travel dates to find the best prices.
British Airways Logo
11:25 am - 4:55 pm
BHD
-
SEA
13h 30m1 stop
British Airways Logo
2:10 pm - 10:40 am
SEA
-
BHD
36h 30m2 stops
$710British Airways
Wed, Feb 4 - Sun, Feb 8
British Airways Logo
12:25 pm - 4:55 pm
BHD
-
SEA
12h 30m1 stop
British Airways Logo
2:10 pm - 10:40 am
SEA
-
BHD
36h 30m2 stops
$713British Airways
Wed, Feb 4 - Sun, Feb 8
British Airways Logo
6:35 am - 10:07 pm
BHD
-
SEA
23h 32m2 stops
British Airways Logo
2:10 pm - 10:40 am
SEA
-
BHD
36h 30m2 stops
$714British Airways
Wed, Feb 4 - Sun, Feb 8
British Airways Logo
6:35 am - 10:07 pm
BHD
-
SEA
23h 32m2 stops
British Airways Logo
2:10 pm - 10:40 am
SEA
-
BHD
36h 30m2 stops
$717British Airways
Wed, Feb 4 - Sun, Feb 8
British Airways Logo
6:35 am - 11:30 am
BHD
-
SEA
12h 55m1 stop
British Airways Logo
7:50 pm - 6:35 pm
SEA
-
BHD
15h 45m1 stop
$719British Airways
Sat, Mar 7 - Mon, Mar 9
British Airways Logo
6:35 am - 4:55 pm
BHD
-
SEA
18h 20m1 stop
British Airways Logo
6:50 pm - 6:40 pm
SEA
-
BHD
15h 50m1 stop
$720British Airways
Wed, Feb 4 - Sun, Feb 8
British Airways Logo
11:35 am - 4:55 pm
BHD
-
SEA
13h 20m1 stop
British Airways Logo
7:50 pm - 6:35 pm
SEA
-
BHD
15h 45m1 stop
$722British Airways
Sat, Mar 7 - Mon, Mar 9
British Airways Logo
6:35 am - 11:04 pm
BHD
-
SEA
24h 29m2 stops
British Airways Logo
7:15 am - 10:40 am
SEA
-
BHD
20h 25m2 stops
$725British Airways
Sat, Mar 7 - Mon, Mar 9
British Airways Logo
11:25 am - 4:55 pm
BHD
-
SEA
13h 30m1 stop
British Airways Logo
6:12 am - 10:20 am
SEA
-
BHD
20h 08m2 stops
$726British Airways
Wed, Feb 4 - Sun, Feb 8
British Airways Logo
6:35 am - 11:04 pm
BHD
-
SEA
24h 29m2 stops
British Airways Logo
1:37 pm - 2:15 pm
SEA
-
BHD
17h 38m2 stops
$728British Airways
Sat, Mar 7 - Mon, Mar 9

British Airways flights from Belfast City Airport to Seattle

Our best British Airways deals on Belfast City Airport to Seattle flight tickets
British Airways
Feb 4
BHD11:25 amBelfast City
13h 30m
1 stop
SEA4:55 pmSeattle/Tacoma Intl
Feb 8
SEA2:10 pmSeattle/Tacoma Intl
36h 30m
2 stops
BHD10:40 amBelfast City
$710
British Airways
Feb 4
BHD12:25 pmBelfast City
12h 30m
1 stop
SEA4:55 pmSeattle/Tacoma Intl
Feb 8
SEA2:10 pmSeattle/Tacoma Intl
36h 30m
2 stops
BHD10:40 amBelfast City
$713
British Airways
Feb 4
BHD6:35 amBelfast City
23h 32m
2 stops
SEA10:07 pmSeattle/Tacoma Intl
Feb 8
SEA2:10 pmSeattle/Tacoma Intl
36h 30m
2 stops
BHD10:40 amBelfast City
$714

momondo Fare Finder

 
Customize your flight search to find flights from Belfast City Airport to Seattle that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated January 9, 2026.
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

Wed 2/4

11:25 am-4:55 pm

1 stop13h 30m

Seattle/Tacoma Intl

Sun 2/8

2:10 pm-10:40 am

2 stops36h 30m

$710

BelfastSeattle

BHD - SEA

BHDSEA

Belfast City

Wed 2/4

12:25 pm-4:55 pm

1 stop12h 30m

Seattle/Tacoma Intl

Sun 2/8

2:10 pm-10:40 am

2 stops36h 30m

$713

BelfastSeattle

BHD - SEA

BHDSEA

Belfast City

Wed 2/4

6:35 am-10:07 pm

2 stops23h 32m

Seattle/Tacoma Intl

Sun 2/8

2:10 pm-10:40 am

2 stops36h 30m

$714

BelfastSeattle

BHD - SEA

BHDSEA

Belfast City

Wed 2/4

6:35 am-10:07 pm

2 stops23h 32m

Seattle/Tacoma Intl

Sun 2/8

2:10 pm-10:40 am

2 stops36h 30m

$717

BelfastSeattle

BHD - SEA

BHDSEA

Belfast City

Sat 3/7

6:35 am-11:30 am

1 stop12h 55m

Seattle/Tacoma Intl

Mon 3/9

7:50 pm-6:35 pm

1 stop15h 45m

$719

BelfastSeattle

BHD - SEA

BHDSEA

Belfast City

Wed 2/4

6:35 am-4:55 pm

1 stop18h 20m

Seattle/Tacoma Intl

Sun 2/8

6:50 pm-6:40 pm

1 stop15h 50m

$720

BelfastSeattle

BHD - SEA

BHDSEA

Belfast City

Sat 3/7

11:35 am-4:55 pm

1 stop13h 20m

Seattle/Tacoma Intl

Mon 3/9

7:50 pm-6:35 pm

1 stop15h 45m

$722

BelfastSeattle

BHD - SEA

BHDSEA

Belfast City

Sat 3/7

6:35 am-11:04 pm

2 stops24h 29m

Seattle/Tacoma Intl

Mon 3/9

7:15 am-10:40 am

2 stops20h 25m

$725

BelfastSeattle

BHD - SEA

BHDSEA

Belfast City

Wed 2/4

11:25 am-4:55 pm

1 stop13h 30m

Seattle/Tacoma Intl

Sun 2/8

6:12 am-10:20 am

2 stops20h 08m

$726

BelfastSeattle

BHD - SEA

BHDSEA

Belfast City

Sat 3/7

6:35 am-11:04 pm

2 stops24h 29m

Seattle/Tacoma Intl

Mon 3/9

1:37 pm-2:15 pm

2 stops17h 38m

$728

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 resultsSorted by cheapest first
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See travel insights to Seattle from

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

Can stopping save me money on Belfast City Airport to Seattle flights?

You could potentially save up to 8% on your flight if you consider stops on a Belfast City Airport to Seattle flight.

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

12h 55m

Direct flights

None
The fastest flight from Belfast City Airport to Seattle takes 12h 55m
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?

    There are 4463.4 mi between Belfast City and Seattle/Tacoma Intl. 12h 55m 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.

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Tacoma
Leavenworth
SeaTac
Ocean Shores
Renton
Olympia
Lynnwood
Kent
Marysville
Puyallup
Redmond
Tukwila
Federal Way
Cle Elum
Lakewood
Fife
Westport
Kirkland
Centralia
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.

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