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Cheap flights from Belfast to Seattle from $523

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 12/2. 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 round-trip flights

These are some of the best round-trip 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 layovers.

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.
6:30 am - 6:26 pmBHD-SEA
19h 56m2 stops
2:05 pm - 4:50 pmSEA-BHD
18h 45m1 stop
Thu, Feb 20 - Fri, Feb 28
6:30 am - 4:34 pmBHD-SEA
18h 04m2 stops
8:50 am - 4:50 pmSEA-BHD
24h 00m2 stops
$874Delta
Find Deal
Thu, Feb 20 - Fri, Feb 28
6:35 am - 5:05 pmBHD-SEA
18h 30m2 stops
6:50 pm - 7:20 pmSEA-BHD
16h 30m2 stops
$1,075Aer Lingus
Find Deal
Thu, Apr 3 - Thu, Apr 24
5:20 pm - 4:05 pmBHD-SEA
30h 45m1 stop
1:30 pm - 9:20 pmSEA-BHD
23h 50m1 stop
$1,194KLM
Find Deal
Thu, Apr 3 - Thu, Apr 24
6:30 am - 4:05 pmBHD-SEA
17h 35m1 stop
12:00 pm - 4:50 pmSEA-BHD
20h 50m2 stops
$1,197Delta
Find Deal
Thu, Apr 3 - Thu, Apr 24
9:10 pm - 5:40 pmBFS-SEA
28h 30m3 stops
5:05 pm - 7:30 pmSEA-BFS
18h 25m2 stops
$1,250
Find Deal
Thu, Apr 3 - Thu, Apr 24
9:10 pm - 5:40 pmBFS-SEA
28h 30m3 stops
3:50 pm - 7:20 pmSEA-BFS
19h 30m1 stop
$1,258
Find Deal
Thu, Apr 3 - Thu, Apr 24
8:15 pm - 5:00 pmBFS-SEA
52h 45m3 stops
Mon, Dec 2
8:30 am - 8:50 pmBFS-SEA
44h 20m3 stops
Thu, Dec 5
8:35 pm - 2:21 pmBFS-SEA
49h 46m3 stops
Tue, Dec 3
8:30 am - 2:21 pmBFS-SEA
37h 51m2 stops
Thu, Dec 5
6:35 am - 2:21 pmBHD-SEA
39h 46m2 stops
Thu, Dec 5
8:55 pm - 8:26 pmBFS-SEA
31h 31m2 stops
Wed, Dec 4
7:30 pm - 6:15 pmBHD-SEA
54h 45m2 stops
$643Aer Lingus
Find Deal
Mon, Dec 2
3:05 pm - 7:15 pmBHD-SEA
35h 10m2 stops
$663Aer Lingus
Find Deal
Sat, Mar 22
6:50 am - 6:15 pmBHD-SEA
19h 25m2 stops
$841Aer Lingus
Find Deal
Wed, Dec 18
6:30 am - 7:00 pmBHD-SEA
20h 30m2 stops
$2,845Delta
Find Deal
Fri, Nov 29

Delta flights from Belfast to Seattle

Our best Delta deals on Belfast to Seattle flight tickets
Delta
Feb 20
BHD6:30 amBelfast City
18h 04m
2 stops
SEA4:34 pmSeattle/Tacoma Intl
Feb 28
SEA8:50 amSeattle/Tacoma Intl
24h 00m
2 stops
BHD4:50 pmBelfast City
Delta
Nov 13
BHD6:30 amBelfast City
17h 53m
2 stops
SEA4:23 pmSeattle/Tacoma Intl
Nov 17
SEA9:00 amSeattle/Tacoma Intl
23h 50m
2 stops
BHD4:50 pmBelfast City
Delta
Nov 13
BHD6:30 amBelfast City
17h 53m
2 stops
SEA4:23 pmSeattle/Tacoma Intl
Nov 17
SEA8:15 amSeattle/Tacoma Intl
24h 35m
2 stops
BHD4:50 pmBelfast City

KLM flights from Belfast to Seattle

Our best KLM deals on Belfast to Seattle flight tickets
KLM
Nov 13
BHD6:30 amBelfast City
13h 10m
1 stop
SEA11:40 amSeattle/Tacoma Intl
Nov 17
SEA2:05 pmSeattle/Tacoma Intl
22h 55m
1 stop
BHD9:00 pmBelfast City
KLM
Apr 3
BHD5:20 pmBelfast City
30h 45m
1 stop
SEA4:05 pmSeattle/Tacoma Intl
Apr 24
SEA1:30 pmSeattle/Tacoma Intl
23h 50m
1 stop
BHD9:20 pmBelfast 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?

Sunday. The cheapest day of the week is typically Sunday. The most expensive is typically Sunday

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

Belfast to Seattle flights are currently only available at noon

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 3% 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

$523

Fastest flight time

12h 50m

Direct flights

None

Airports in Seattle

1 airport
The best one-way flight to Seattle from Belfast in the past 72 hours is $523. The best round-trip flight deal from Belfast to Seattle found on momondo in the last 72 hours is $858.
The fastest flight from Belfast to Seattle takes 12h 50m
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?

    The straight-line distance from Belfast to Seattle/Tacoma Intl is 4463.0 mi. A reasonable flight in good conditions will take 17h 35m.

  • 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 updated daily.

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

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Belfast 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.


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?

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?

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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