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Cheap flights from Belfast to Seattle from $648

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 3/22. 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 - 4:05 pmBHD-SEA
17h 35m1 stop
9:40 am - 4:50 pmSEA-BHD
23h 10m2 stops
$819Delta
Find Deal
Thu, May 8 - Thu, May 29
6:30 am - 4:05 pmBHD-SEA
17h 35m1 stop
5:30 pm - 4:50 pmSEA-BHD
15h 20m1 stop
$820Delta
Find Deal
Thu, May 8 - Thu, May 29
6:30 am - 11:25 pmBHD-SEA
24h 55m2 stops
9:40 am - 4:50 pmSEA-BHD
23h 10m2 stops
$824Delta
Find Deal
Thu, May 8 - Thu, May 29
6:35 am - 11:35 amBHD-SEA
13h 00m1 stop
7:40 pm - 6:10 pmSEA-BHD
14h 30m1 stop
$931Iberia
Find Deal
Fri, May 9 - Fri, May 30
6:35 am - 11:35 amBHD-SEA
13h 00m1 stop
7:40 pm - 6:10 pmSEA-BHD
14h 30m1 stop
$945British Airways
Find Deal
Fri, May 9 - Fri, May 30
6:35 am - 11:35 amBHD-SEA
13h 00m1 stop
7:40 pm - 6:10 pmSEA-BHD
14h 30m1 stop
$947British Airways
Find Deal
Fri, May 9 - Fri, May 30
5:20 pm - 11:52 amBHD-SEA
26h 32m1 stop
12:34 pm - 4:50 pmSEA-BHD
20h 16m2 stops
$992KLM
Find Deal
Mon, Dec 2 - Mon, Dec 9
7:30 pm - 11:20 amBHD-SEA
23h 50m1 stop
6:50 pm - 8:15 pmSEA-BHD
17h 25m1 stop
Mon, Dec 2 - Mon, Dec 9
5:40 pm - 11:20 amBHD-SEA
25h 40m1 stop
1:56 pm - 4:15 pmSEA-BHD
18h 19m2 stops
$1,013
Find Deal
Mon, Dec 2 - Mon, Dec 9
5:20 pm - 11:52 amBHD-SEA
26h 32m1 stop
2:13 pm - 9:00 pmSEA-BHD
22h 47m1 stop
$1,150KLM
Find Deal
Mon, Dec 2 - Mon, Dec 9
3:05 pm - 7:15 pmBHD-SEA
35h 10m2 stops
$648Aer Lingus
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Sat, Mar 22
3:05 pm - 7:15 pmBHD-SEA
35h 10m2 stops
$650Aer Lingus
Find Deal
Sat, Mar 22
2:10 pm - 6:00 pmBFS-SEA
34h 50m2 stops
Sat, Mar 22
2:10 pm - 6:00 pmBFS-SEA
34h 50m2 stops
Sat, Mar 22
6:30 am - 5:55 pmBHD-SEA
18h 25m1 stop
$854Aer Lingus
Find Deal
Sat, Mar 22
9:10 am - 5:55 pmBHD-SEA
15h 45m1 stop
$882Aer Lingus
Find Deal
Sat, Mar 22
6:50 am - 5:55 pmBHD-SEA
42h 05m3 stops
$1,202Aer Lingus
Find Deal
Sat, Mar 22
6:50 am - 5:55 pmBHD-SEA
42h 05m3 stops
$1,210Aer Lingus
Find Deal
Sat, Mar 22
6:50 pm - 6:15 pmBHD-SEA
31h 25m2 stops
6:50 pm - 7:40 pmSEA-BHD
16h 50m1 stop
$1,086Aer Lingus
Find Deal
Sat, Nov 23 - Sat, Nov 30
6:30 am - 11:20 amBHD-SEA
12h 50m1 stop
1:45 pm - 11:10 amSEA-BHD
13h 25m1 stop
$1,203
Find Deal
Sat, Nov 23 - Sat, Nov 30
6:30 am - 11:20 amBHD-SEA
12h 50m1 stop
6:50 pm - 7:40 pmSEA-BHD
16h 50m1 stop
$1,205Finnair
Find Deal
Sat, Nov 23 - Sat, Nov 30
6:30 am - 7:35 pmBHD-SEA
21h 05m2 stops
6:50 pm - 7:40 pmSEA-BHD
16h 50m1 stop
$1,240
Find Deal
Sat, Nov 23 - Sat, Nov 30
6:30 am - 7:35 pmBHD-SEA
21h 05m2 stops
6:50 pm - 4:40 pmSEA-BHD
13h 50m1 stop
$1,242
Find Deal
Sat, Nov 23 - Sat, Nov 30
9:10 am - 11:00 pmBHD-SEA
21h 50m2 stops
1:45 pm - 8:25 pmSEA-BHD
22h 40m1 stop
$1,254American Airlines
Find Deal
Sat, Nov 23 - Sat, Nov 30
6:30 am - 11:40 amBHD-SEA
13h 10m1 stop
2:05 pm - 4:50 pmSEA-BHD
18h 45m1 stop
$1,345Delta
Find Deal
Sat, Nov 23 - Sat, Nov 30
6:30 am - 11:40 amBHD-SEA
13h 10m1 stop
2:05 pm - 9:00 pmSEA-BHD
22h 55m1 stop
$1,347Delta
Find Deal
Sat, Nov 23 - Sat, Nov 30
6:30 am - 6:24 pmBHD-SEA
19h 54m2 stops
6:05 am - 4:50 pmSEA-BHD
26h 45m2 stops
$1,370Delta
Find Deal
Sat, Nov 23 - Sat, Nov 30
6:30 am - 6:24 pmBHD-SEA
19h 54m2 stops
6:05 am - 4:50 pmSEA-BHD
26h 45m2 stops
$1,373Delta
Find Deal
Sat, Nov 23 - Sat, Nov 30

Delta flights from Belfast to Seattle

Our best Delta deals on Belfast to Seattle flight tickets
Delta
May 8
BHD6:30 amBelfast City
17h 35m
1 stop
SEA4:05 pmSeattle/Tacoma Intl
May 29
SEA9:40 amSeattle/Tacoma Intl
23h 10m
2 stops
BHD4:50 pmBelfast City
Delta
May 8
BHD6:30 amBelfast City
17h 35m
1 stop
SEA4:05 pmSeattle/Tacoma Intl
May 29
SEA5:30 pmSeattle/Tacoma Intl
15h 20m
1 stop
BHD4:50 pmBelfast City
Delta
May 8
BHD6:30 amBelfast City
24h 55m
2 stops
SEA11:25 pmSeattle/Tacoma Intl
May 29
SEA9:40 amSeattle/Tacoma Intl
23h 10m
2 stops
BHD4:50 pmBelfast City

British Airways flights from Belfast to Seattle

Our best British Airways deals on Belfast to Seattle flight tickets
British Airways
May 9
BHD6:35 amBelfast City
13h 00m
1 stop
SEA11:35 amSeattle/Tacoma Intl
May 30
SEA7:40 pmSeattle/Tacoma Intl
14h 30m
1 stop
BHD6:10 pmBelfast City
British Airways
May 9
BHD6:35 amBelfast City
13h 00m
1 stop
SEA11:35 amSeattle/Tacoma Intl
May 30
SEA7:40 pmSeattle/Tacoma Intl
14h 30m
1 stop
BHD6:10 pmBelfast City

See travel insights to Seattle from

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

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

$648

Fastest flight time

13h 00m

Direct flights

None

Airports in Seattle

1 airport
The best one-way flight to Seattle from Belfast in the past 72 hours is $648. The best round-trip flight deal from Belfast to Seattle found on momondo in the last 72 hours is $819.
The fastest flight from Belfast to Seattle takes 13h 00m
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 13h 00m.

  • 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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