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Cheap Flights from Osaka (OSAA) to Seattle (SEA)

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Compare Osaka to Seattle / Tacoma International flight deals

Find the cheapest month or even day of the year to fly to Seattle / Tacoma International

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Flight deals from Osaka to Seattle / Tacoma International

Looking for a cheap last-minute deal or the best return flight from Osaka to Seattle / Tacoma International? Find the lowest prices on one-way and return tickets right here.
Seattle.$1,229 per passenger.Departing Thu, 18 Sep, returning Sat, 20 Sep.Return flight with Peach and Hawaiian Airlines.Outbound indirect flight with Peach, departs from Kansai International (Osaka) on Thu, 18 Sep, arriving in Seattle / Tacoma International.Inbound indirect flight with Hawaiian Airlines, departs from Seattle / Tacoma International on Sat, 20 Sep, arriving in Kansai International (Osaka).Price includes taxes and charges.From $1,229, select.
Seattle.$1,271 per passenger.Departing Fri, 3 Oct, returning Sat, 11 Oct.Return flight with Air Canada.Outbound indirect flight with Air Canada, departs from Kansai International (Osaka) on Fri, 3 Oct, arriving in Seattle / Tacoma International.Inbound indirect flight with Air Canada, departs from Seattle / Tacoma International on Sat, 11 Oct, arriving in Kansai International (Osaka).Price includes taxes and charges.From $1,271, select.
Seattle.$1,271 per passenger.Departing Wed, 16 Jul, returning Sun, 20 Jul.Return flight with Philippine Airlines.Outbound indirect flight with Philippine Airlines, departs from Kansai International (Osaka) on Wed, 16 Jul, arriving in Seattle / Tacoma International.Inbound indirect flight with Philippine Airlines, departs from Seattle / Tacoma International on Sun, 20 Jul, arriving in Kansai International (Osaka).Price includes taxes and charges.From $1,271, select.
Seattle.$1,286 per passenger.Departing Mon, 23 Jun, returning Fri, 4 Jul.Return flight with Air Busan and Asiana Airlines.Outbound indirect flight with Air Busan, departs from Kansai International (Osaka) on Mon, 23 Jun, arriving in Seattle / Tacoma International.Inbound indirect flight with Asiana Airlines, departs from Seattle / Tacoma International on Fri, 4 Jul, arriving in Kansai International (Osaka).Price includes taxes and charges.From $1,286, select.
Seattle.$1,331 per passenger.Departing Mon, 23 Jun, returning Wed, 25 Jun.Return flight with Air Busan and Asiana Airlines.Outbound indirect flight with Air Busan, departs from Kansai International (Osaka) on Mon, 23 Jun, arriving in Seattle / Tacoma International.Inbound indirect flight with Asiana Airlines, departs from Seattle / Tacoma International on Wed, 25 Jun, arriving in Kansai International (Osaka).Price includes taxes and charges.From $1,331, select.
Seattle.$1,349 per passenger.Departing Fri, 29 Aug, returning Fri, 5 Sep.Return flight with Peach and Korean Air.Outbound indirect flight with Peach, departs from Kansai International (Osaka) on Fri, 29 Aug, arriving in Seattle / Tacoma International.Inbound indirect flight with Korean Air, departs from Seattle / Tacoma International on Fri, 5 Sep, arriving in Kansai International (Osaka).Price includes taxes and charges.From $1,349, select.
Seattle.$1,388 per passenger.Departing Tue, 3 Feb, returning Tue, 17 Feb.Return flight with Hawaiian Airlines.Outbound indirect flight with Hawaiian Airlines, departs from Kansai International (Osaka) on Tue, 3 Feb, arriving in Seattle / Tacoma International.Inbound indirect flight with Hawaiian Airlines, departs from Seattle / Tacoma International on Tue, 17 Feb, arriving in Kansai International (Osaka).Price includes taxes and charges.From $1,388, select.
Seattle.$1,389 per passenger.Departing Sun, 7 Sep, returning Fri, 10 Oct.Return flight with STARLUX Airlines.Outbound indirect flight with STARLUX Airlines, departs from Kobe on Sun, 7 Sep, arriving in Seattle / Tacoma International.Inbound indirect flight with STARLUX Airlines, departs from Seattle / Tacoma International on Fri, 10 Oct, arriving in Kansai International (Osaka).Price includes taxes and charges.From $1,389, select.

Find the cheapest month to fly from Osaka to Seattle / Tacoma International

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Osaka to Seattle / Tacoma International flights are currently cheapest in September.
Jun
from $1,331
Jul
from $1,271
Aug
from $1,394
Sep
from $1,229
Oct
from $1,271
Nov
from $1,405
Dec
from $1,403
Jan
from $1,443
Feb
from $1,388
Mar
from $1,407
Apr
from $1,394
May
from $1,405

Osaka to Seattle / Tacoma International: Alternative routes

Compare routes from Osaka to Seattle below. You may find an airport to fly into that's cheaper, faster, or easier than Seattle / Tacoma International.

Osaka to Seattle: Flight information

The things to know before you go.
Cheapest flight found$1,229
Cheapest month to flySeptember

Finding cheap flights from Osaka to Seattle / Tacoma International: Frequently asked questions

The best price we found for a return flight from Osaka to Seattle / Tacoma International is $1,229. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Osaka to Seattle / Tacoma International. But we found flights with one stop from $1,229.
As of June 2025, there are no flights flying from Osaka to Seattle / Tacoma International.
The cheapest month to fly from Osaka to Seattle / Tacoma International is usually June 2025.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Osaka to Seattle / Tacoma International Airport on Thursday, 18 September 2025.
No airlines currently offer direct flights between Osaka and Seattle / Tacoma International Airport. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Seattle / Tacoma International but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Seattle is around 40 days in advance, so don’t leave your flight to the last minute.
The cheapest airline that flies to Seattle / Tacoma International is Peach .

Travelling from Osaka to Seattle-Tacoma International Airport (SEA): what you need to know

  • Planning your holiday starts with working out where you'll leave from in Osaka. Kansai International Airport (KIX) is the city's main base, so check out your options for booking a flight from Osaka to Seattle-Tacoma International Airport (SEA) departing from here.

  • The timezone in Seattle is UTC-7, which is 16 hours behind Osaka. Seattle-Tacoma International Airport is located in Seattle.

  • For a smooth journey, arrive at the airport two hours ahead of international flights and one hour before domestic departures. This will give you enough time to catch your flight from Osaka to SEA.

  • Flying during a peak month like June? Major public holidays and other popular seasons can lead to longer lines and delays at security. Be extra cautious and arrive up to four hours ahead of international flights and two hours before domestic departures.

Airports in Osaka

Kansai International Airport (KIX)

  • A stopover is the perfect opportunity to break up your journey — and perhaps even explore another city. When searching for flights from Osaka to SEA leaving from Kansai International Airport (KIX), deselect the 'Direct flights only' box to see where you can visit along the way. Consider one of these popular options:

    • Vancouver International Airport (YVR)

    • Narita International Airport (NRT)

    • Haneda Airport (HND)

  • From central Osaka, KIX is around 48 kilometres away. Visit the official airport website or use navigation apps to find the best way to arrive at the terminal.

  • Want an easy start to your trip? Stay near Kansai International Airport. Whether you're catching an early flight from Osaka to Seattle-Tacoma International Airport or just don't like being rushed, these hotels are just the thing:

About Seattle-Tacoma International Airport (SEA)

Getting from Seattle-Tacoma International Airport (SEA) to central Seattle

  • Seattle-Tacoma International Airport to central Seattle is about 18 minutes in a car. It's approximately 23 kilometres away. Find out what options are available, such as car rentals, cabs or ride-sharing.

  • Travelling to the centre on public transport takes around 54 minutes.

How to find the cheapest flights from Osaka to Seattle-Tacoma International Airport (SEA)

  • Lock in a one-way ticket from Osaka to Seattle-Tacoma International Airport from $660 or travel return from just $1,229. Prices are accurate at the time of listing and may change based on availability when you book.

  • It's usually smart to book ahead of time if you want to get flight tickets from Osaka to SEA. That's because flight prices are based on demand, which tends to rise closer to the departure date.

  • The 'Whole month' search tool shows you the cheapest tickets from Osaka to Seattle-Tacoma International Airport across each month. It's a good way to snap up a bargain if your dates are flexible.

  • Create a Price Alert for flight tickets from Osaka to SEA. There's no need to search every day to see if fares have dropped. We'll let you know as soon as there's a change in price.

  • Tailor your flights with filters. Select your arrival and departure times, airlines and total journey duration. You can also sort the results by 'Cheapest,' 'Fastest' or 'Best' flights from Osaka to Seattle-Tacoma International Airport.

The best time to fly from Osaka to Seattle-Tacoma International Airport (SEA)

  • July is the busiest month for flights from Osaka to Seattle-Tacoma International Airport. To avoid the crowds, plan your trip to Seattle in May when things are quieter.

  • Before you book a flight from Osaka to SEA, think about the type of weather you enjoy. August is the warmest month in Seattle, with temperatures ranging from 12ºC to 28ºC.

  • Look for cheap flights from Osaka to Seattle-Tacoma International Airport in February if you'd rather travel during cooler conditions. Temperatures are at their lowest then, ranging between -1ºC and 11ºC on average.

More about Seattle

Complete your Seattle trip with a car rental

  • Finding you a cheap flight from Osaka to Seattle-Tacoma International Airport isn't our only cool trick. Browse our car rentals in Seattle and explore the city on your own terms. We search for deals from trusted car rental providers and put them all in one place. Instantly compare offers and then book with no fees.

Plan the rest of your trip from Osaka to Seattle

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.