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Cheap flights from Belfast Intl Airport to Seattle from £478

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 Intl Airport to Seattle departing on 13/4. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags
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Find the cheapest flights from Belfast Intl Airport to Seattle

Cheap return flights

These are some of the best return flight deals from Belfast Intl Airport 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 Intl Airport to Seattle.

Cheap last-minute flights

Planning a quick getaway from Belfast Intl Airport 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 Intl Airport to Seattle

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

All round-trip flight deals to Seattle

The cheapest plane tickets to Seattle found on KAYAK recently.
20:55 - 17:05BFS-SEA
28h 10m2 stops
14:35 - 21:05SEA-BFS
22h 30m2 stops
£1,287
Find Deal
Mon, 6 Jan - Mon, 13 Jan
20:55 - 17:05BFS-SEA
28h 10m2 stops
14:35 - 20:50SEA-BFS
22h 15m3 stops
£1,314
Find Deal
Mon, 6 Jan - Mon, 13 Jan
07:20 - 11:20BFS-SEA
36h 00m3 stops
14:35 - 20:50SEA-BFS
22h 15m3 stops
£1,382
Find Deal
Mon, 6 Jan - Mon, 13 Jan
20:30 - 11:20BFS-SEA
46h 50m3 stops
05:30 - 20:10SEA-BFS
30h 40m2 stops
£1,400
Find Deal
Sun, 5 Jan - Sun, 12 Jan
20:30 - 11:20BFS-SEA
46h 50m3 stops
14:35 - 22:05SEA-BFS
23h 30m3 stops
£1,424
Find Deal
Sun, 5 Jan - Sun, 12 Jan
20:45 - 17:05BFS-SEA
28h 20m2 stops
05:30 - 20:10SEA-BFS
30h 40m2 stops
£1,489
Find Deal
Sun, 5 Jan - Sun, 12 Jan
22:55 - 20:35BFS-SEA
29h 40m2 stops
Sun, 13 Apr
20:15 - 17:05BFS-SEA
52h 50m3 stops
Mon, 2 Dec
20:15 - 18:15BFS-SEA
54h 00m2 stops
Mon, 2 Dec
06:00 - 17:40BFS-SEA
19h 40m3 stops
Sun, 13 Apr

See travel insights to Seattle from

How to get the cheapest flight ticket from Belfast Intl 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

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

According to our data, Monday is the cheapest day to fly to Seattle from Belfast Intl Airport. The lowest ticket price found for a Monday departure recently was £0. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. Be sure to avoid booking your departure on a Saturday as prices are generally higher than usual. According to our data, the average ticket price to Seattle on Saturday is £667.

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

According to our data, the cheapest time of day to fly to Seattle is at midday. momondo users have found flights departing from Belfast Intl Airport to Seattle at midday for as low as £0. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights in the morning are often more expensive, with an average ticket price of £689.

When to book flights from Belfast Intl Airport to Seattle

Are you open to changing your travel dates? Check out the ideal times to fly from Belfast Intl Airport to Seattle according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap Belfast Intl Airport to Seattle (BFS to SEA) flight deals and tips

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

Best price found

£478

Fastest flight time

19h 40m

Direct flights

None

Airports in Seattle

1 airport
The best one-way flight to Seattle from Belfast Intl Airport in the past 72 hours is £478. The best return flight deal from Belfast Intl Airport to Seattle found on momondo in the last 72 hours is £1,287.
The fastest flight from Belfast Intl Airport to Seattle takes 19h 40m
There are no direct flights from Belfast Intl Airport to Seattle. Popular non-direct route for this connection is Belfast Intl Airport - Seattle/Tacoma Intl Airport.
There is 1 airport near Seattle: Seattle/Tacoma Intl (SEA)

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

    Belfast Intl and Seattle/Tacoma Intl are 4452.2 mi apart from one another. Flights usually cover this in 28h 10m, depending on flying conditions and air traffic around both airports.

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

    Prices for flights from Belfast Intl Airport to Seattle/Tacoma Intl Airport were last updated today.

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


Why use momondo?

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

Finding the right flight to Seattle from Belfast is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Seattle quick and easy, saving you time and money.

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

Yes. All flights to Seattle from Belfast on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Belfast to Seattle?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Belfast to Seattle.

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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