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Cheap flights from Belfast to Seattle from £492

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Belfast to Seattle departing on 22/3. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Belfast to Seattle

Cheap return flights

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

Cheap one-way flights

Flying one-way? These are some of the best deals recently discovered on momondo for flights from Belfast to Seattle.

Cheap last-minute flights

Planning a quick getaway from Belfast to Seattle? These are the last-minute flight deals available now.

Cheap direct flights

If you prefer a non-stop journey, check out our latest direct flight deals to Seattle, so you can enjoy a seamless trip without stopovers.

Cheap bus & train deals from Belfast to Seattle

Find recent round-trip train or bus tickets from Belfast to Seattle.

All round-trip flight deals to Seattle

The cheapest plane tickets to Seattle found on KAYAK recently.
17:20 - 11:52BHD-SEA
26h 32m1 stop
14:13 - 21:00SEA-BHD
22h 47m1 stop
£683KLM
Find Deal
sø., 15 des. - ma., 30 des.
17:20 - 11:52BHD-SEA
26h 32m1 stop
14:13 - 16:50SEA-BHD
18h 37m1 stop
£685KLM
Find Deal
sø., 15 des. - ma., 30 des.
17:20 - 11:52BHD-SEA
26h 32m1 stop
12:34 - 16:50SEA-BHD
20h 16m2 stops
£699KLM
Find Deal
sø., 15 des. - ma., 30 des.
17:20 - 11:52BHD-SEA
26h 32m1 stop
12:34 - 16:50SEA-BHD
20h 16m2 stops
£701KLM
Find Deal
sø., 15 des. - ma., 30 des.
06:30 - 16:34BHD-SEA
18h 04m2 stops
09:55 - 16:50SEA-BHD
22h 55m2 stops
£738Delta
Find Deal
sø., 15 des. - ma., 30 des.
06:30 - 16:34BHD-SEA
18h 04m2 stops
09:55 - 16:50SEA-BHD
22h 55m2 stops
£741Delta
Find Deal
sø., 15 des. - ma., 30 des.
06:30 - 11:40BHD-SEA
13h 10m1 stop
14:05 - 16:50SEA-BHD
18h 45m1 stop
£796Delta
Find Deal
on., 13 nov. - sø., 17 nov.
06:30 - 11:40BHD-SEA
13h 10m1 stop
14:05 - 16:50SEA-BHD
18h 45m1 stop
£799KLM
Find Deal
on., 13 nov. - sø., 17 nov.
06:30 - 16:23BHD-SEA
17h 53m2 stops
12:05 - 21:00SEA-BHD
24h 55m2 stops
£801Delta
Find Deal
on., 13 nov. - sø., 17 nov.
06:35 - 12:15BFS-SEA
13h 40m1 stop
06:05 - 21:50SEA-BFS
31h 45m3 stops
£1,210
Find Deal
sø., 15 des. - sø., 22 des.
19:25 - 18:00BFS-SEA
29h 35m2 stops
lø., 22 mar.
19:25 - 18:00BFS-SEA
29h 35m2 stops
lø., 22 mar.
15:05 - 19:15BHD-SEA
35h 10m2 stops
£514Aer Lingus
Find Deal
lø., 22 mar.
20:25 - 21:13BFS-SEA
55h 48m3 stops
lø., 22 mar.
20:25 - 21:13BFS-SEA
55h 48m3 stops
lø., 22 mar.
09:10 - 17:55BHD-SEA
15h 45m1 stop
lø., 22 mar.
06:30 - 17:55BHD-SEA
18h 25m1 stop
lø., 22 mar.
09:55 - 13:15BFS-SEA
34h 20m1 stop
lø., 22 mar.
09:55 - 13:15BFS-SEA
34h 20m1 stop
lø., 22 mar.

KLM flights from Belfast to Seattle

Our best KLM deals on Belfast to Seattle flight tickets
KLM
15 Dec
BHD17:20Belfast City
26h 32m
1 stop
SEA11:52Seattle/Tacoma Intl
30 Dec
SEA14:13Seattle/Tacoma Intl
22h 47m
1 stop
BHD21:00Belfast City
KLM
15 Dec
BHD17:20Belfast City
26h 32m
1 stop
SEA11:52Seattle/Tacoma Intl
30 Dec
SEA14:13Seattle/Tacoma Intl
18h 37m
1 stop
BHD16:50Belfast City
KLM
15 Dec
BHD17:20Belfast City
26h 32m
1 stop
SEA11:52Seattle/Tacoma Intl
30 Dec
SEA12:34Seattle/Tacoma Intl
20h 16m
2 stops
BHD16:50Belfast City

Delta flights from Belfast to Seattle

Our best Delta deals on Belfast to Seattle flight tickets
Delta
15 Dec
BHD06:30Belfast City
18h 04m
2 stops
SEA16:34Seattle/Tacoma Intl
30 Dec
SEA09:55Seattle/Tacoma Intl
22h 55m
2 stops
BHD16:50Belfast City
Delta
15 Dec
BHD06:30Belfast City
18h 04m
2 stops
SEA16:34Seattle/Tacoma Intl
30 Dec
SEA09:55Seattle/Tacoma Intl
22h 55m
2 stops
BHD16:50Belfast City
Delta
13 Nov
BHD06:30Belfast City
13h 10m
1 stop
SEA11:40Seattle/Tacoma Intl
17 Nov
SEA14:05Seattle/Tacoma Intl
18h 45m
1 stop
BHD16:50Belfast City

How to get the cheapest flight ticket from Belfast 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 day to depart Belfast for Seattle?

Tuesday. The cheapest day of the week is usually Tuesday. The most expensive is usually Saturday.

When is the cheapest time to fly from Belfast to Seattle?

Belfast to Seattle flights are currently only available in the morning

What is the cheapest Belfast to Seattle flight route?

Belfast Intl - Seattle/Tacoma Intl. Fly from Belfast Intl to Seattle/Tacoma Intl for the best Belfast - Seattle flight prices

Can stopping save me money on Belfast to Seattle flights?

You could potentially save up to 29% on your flight if you consider stops on a Belfast to Seattle flight.

Cheap Belfast to Seattle flight deals and tips

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

Best price found

£492

Fastest flight time

13h 10m

Direct flights

None

Airports in Seattle

1 airport
The best one-way flight to Seattle from Belfast in the past 72 hours is £492. The best return flight deal from Belfast to Seattle found on momondo in the last 72 hours is £683.
The fastest flight from Belfast to Seattle takes 13h 10m
There are no direct flights from Belfast to Seattle. Popular non-direct routes for this connection are Belfast City Airport - Seattle/Tacoma Intl Airport and Belfast Intl Airport - Seattle/Tacoma Intl Airport.
There is 1 airport near Seattle: Seattle/Tacoma Intl (SEA)

  • How far is Belfast to Seattle/Tacoma Intl by plane?

    Seattle/Tacoma Intl is 4463.0 mi away from Belfast. By plane, this route typically takes 13h 10m.

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

    Prices for flights from Belfast to Seattle/Tacoma Intl Airport are refreshed on a daily basis.

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

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

    The travel and health documents required for your trip to Seattle/Tacoma Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Seattle/Tacoma Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.


Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Belfast to Seattle. momondo saves you time and could save you money on your trip.

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

momondo does allow users to show only those flights to Seattle from Belfast which offer a flexible booking policy as well as other useful filters and features.

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?

Yes momondo offers price alerts on flights to Seattle from Belfast. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.


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