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Cheap Flights from Seattle to Osaka

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Compare Seattle to Osaka flight deals

Find the cheapest month or even day of the year to fly to Osaka

Book the best Osaka fare with no extra fees

Flight deals from Seattle to Osaka

Looking for a cheap last-minute deal or the best return flight from Seattle to Osaka? Find the lowest prices on one-way and return tickets right here.
Osaka.R 7,859 per passenger.Departing Tue, 15 Jul.One-way flight with Asiana Airlines.Outbound indirect flight with Asiana Airlines, departs from Seattle / Tacoma International on Tue, 15 Jul, arriving in Kansai International (Osaka).Price includes taxes and charges.From R 7,859, select.
Osaka.R 7,880 per passenger.Departing Thu, 24 Apr.One-way flight with Asiana Airlines.Outbound indirect flight with Asiana Airlines, departs from Seattle / Tacoma International on Thu, 24 Apr, arriving in Kansai International (Osaka).Price includes taxes and charges.From R 7,880, select.
Osaka.R 7,940 per passenger.Departing Tue, 13 May.One-way flight with Alaska Airlines.Outbound indirect flight with Alaska Airlines, departs from Seattle / Tacoma International on Tue, 13 May, arriving in Kansai International (Osaka).Price includes taxes and charges.From R 7,940, select.
Osaka.R 8,125 per passenger.Departing Tue, 5 Aug.One-way flight with Air Canada.Outbound indirect flight with Air Canada, departs from Seattle / Tacoma International on Tue, 5 Aug, arriving in Kansai International (Osaka).Price includes taxes and charges.From R 8,125, select.
Osaka.R 8,126 per passenger.Departing Mon, 1 Sep.One-way flight with Air Canada.Outbound indirect flight with Air Canada, departs from Seattle / Tacoma International on Mon, 1 Sep, arriving in Kansai International (Osaka).Price includes taxes and charges.From R 8,126, select.
Osaka.R 8,126 per passenger.Departing Wed, 15 Oct.One-way flight with Air Canada.Outbound indirect flight with Air Canada, departs from Seattle / Tacoma International on Wed, 15 Oct, arriving in Kansai International (Osaka).Price includes taxes and charges.From R 8,126, select.
Osaka.R 9,160 per passenger.Departing Tue, 20 Jan.One-way flight with United.Outbound indirect flight with United, departs from Seattle / Tacoma International on Tue, 20 Jan, arriving in Kansai International (Osaka).Price includes taxes and charges.From R 9,160, select.
Osaka.R 9,201 per passenger.Departing Mon, 8 Dec.One-way flight with United.Outbound indirect flight with United, departs from Seattle / Tacoma International on Mon, 8 Dec, arriving in Kansai International (Osaka).Price includes taxes and charges.From R 9,201, select.

Find the cheapest month to fly from Seattle to Osaka

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Seattle to Osaka flights are currently cheapest in July.
Apr
from R 7,880
May
from R 7,940
Jun
from R 10,729
Jul
from R 7,859
Aug
from R 8,125
Sep
from R 8,126
Oct
from R 8,126
Nov
from R 9,328
Dec
from R 9,201
Jan
from R 9,160
Feb
from R 9,224
Mar
from R 9,300

Alternative Seattle to Osaka routes

Looking for the cheapest, fastest or easiest route from Seattle to Osaka? You could fly into the following airports instead.

Seattle to Osaka: Flight information

The things to know before you go.
Cheapest flight foundR 7,859
Cheapest month to flyJuly

Finding cheap flights from Seattle to Osaka: Frequently asked questions

There are 3 airports in Osaka: Itami Domestic (Osaka), Kobe and Kansai International (Osaka).
The best price we found for a return flight from Seattle to Osaka is R 14,417. 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 Seattle to Osaka. But we found flights with one or more stops from R 14,417.
As of April 2025, there are no flights flying from Seattle to Osaka.
The cheapest month to fly from Seattle to Osaka is usually April 2025.
If you're flying from Seattle, the cheapest airport near Osaka is Kansai International (Osaka) – which is 38.0 km away from the centre of Osaka. We've found flights into this airport from R 14,417.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Seattle to Osaka on Sunday, 19 October 2025.
No airlines currently offer direct flights between Seattle and Osaka. 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 Osaka 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 Osaka is around 40 days in advance, so don’t leave your flight to the last minute.
In April, the average temperature is usually around 12°C. August is typically the warmest month in Osaka, when it usually averages around 30°C. You can expect the least rain in December. The coldest month is January, with temperatures averaging 0°C. The rainiest month is June.
The cheapest airline that flies to Osaka is Philippine Airlines .

Travelling from Seattle to Osaka: what you need to know

  • Seattle has a couple of airports that could be the jumping-off point for your adventure. Explore your options for reserving a flight from Seattle to Osaka leaving from Seattle-Tacoma International Airport (SEA) or Lake Union Sea Plane Base Airport (LKE).

  • Touch down at Kansai International Airport (KIX), the chief entry point to Osaka.

  • Osaka's timezone is UTC+9, which makes Osaka 16 hours ahead of Seattle.

  • To ensure you make it on your Seattle to Osaka flight, leave plenty of time for things like check-in and baggage drop. Arriving two hours ahead of international departures and an hour before domestic flights is a good rule of thumb.

  • Peak months like July or high seasons such as spring break and Thanksgiving will mean bigger queues at security and check-in. Travelling then? Play it safe and get to the terminal even earlier. Arriving two hours before domestic flights and four hours ahead of an international departure is a wise move.

How to find the cheapest flights from Seattle to Osaka

  • Booking in advance is often the key to locking in a cheap Seattle to Osaka flight. Fares tend to rise as demand increases, so the nearer you get to departure, the more you'll likely spend on your ticket.

  • If you can be flexible with your trip dates, use the 'Whole month' tool. It'll give you the lowest price in every month when looking for your plane ticket from Seattle to Osaka.

  • Finding a cheap flight from Seattle to Osaka is a piece of cake with Price Alerts. Simply set up one of these automatic alerts and we'll let you know as soon as there's a better deal.

  • Tailor your travel plans using filters. Pick your ideal departure and arrival times, airlines and total journey duration. You can also sort your results by 'Best,' 'Fastest' or 'Cheapest' Seattle to Osaka flights.

Flying from Seattle

Seattle-Tacoma International Airport (SEA)

  • We make it a breeze to book a Seattle to Osaka flight with a stopover. To see the options departing from Seattle-Tacoma International Airport, uncheck 'Direct flights only.' Next, choose a flight that has a stop long enough to see the sights of your chosen city. Some popular stopovers include:

    • Narita International Airport (NRT)

    • Haneda Airport (HND)

    • San Francisco International Airport (SFO)

  • SEA is around 18 kilometres from central Seattle. If you're driving, ride-sharing or catching a cab from the centre, it'll take you 20 minutes or so to get there, depending on traffic. If you're planning to take public transport, expect the travel time to be around 55 minutes.

  • Planning to catch an early flight from Seattle to Osaka? Avoid the stress of rushing to the terminal (and get some extra shut-eye) by choosing one of these stays close to Seattle-Tacoma International Airport:

  • Seattle-Tacoma International Airport scores high marks for its on-time performance. 81.27% of flights that take off from SEA arrive at their destination on time.

Arriving in Osaka

Kansai International Airport (KIX)

  • Kansai International Airport (KIX) to central Osaka takes about 45 minutes to reach by car. The centre is roughly 40 kilometres away.

  • Consider booking a hotel near KIX if you have a late flight from Seattle to Osaka. Check in to one of these options and skip the long transfer:

  • Grab a Kansai International Airport rental car and discover Osaka and beyond with your own wheels. BEST KANSAI CAR RENTAL, BE KOBE and TravelCar are well-known companies you can book with here.

  • Reserve your ride from Kansai International Airport several weeks in advance to secure the best deal. If you're planning to travel during peak season, it's smart to book your Seattle to Osaka flight even earlier.

  • KIX is located at 1 Senshukukokita, Izumisano.

Itami Airport (ITM)

  • After your flight from Seattle to Osaka has hit the tarmac, you can reach the city centre in about 20 minutes by car. Central Osaka is approximately 13 kilometres from Itami Airport (ITM).

  • No need to worry about public transport schedules or waiting forever for a cab. Grab an Itami Airport rental car and take your trip in whatever direction you choose. Compare offers from Europcar, Times and Rakuten.

  • Pick the vehicle you actually want, not just whatever's left, by booking your ride from ITM in advance. You'll also avoid paying extra, especially when demand is high.

  • The address for Itami Airport is 3丁目555 Nishimachi, Hotarugaike, Toyonaka.

Kobe Airport (UKB)

  • Step off your flight from Seattle to Osaka and head directly to your hotel or jump right into exploring. Central Osaka is around 26 kilometres from Kobe Airport (UKB) and typically takes 45 minutes to reach by car.

  • Start your trip without stressing about how to reach your destination with a Kobe Airport rental car. Book your wheels with reliable suppliers here like Europcar, Times and Rakuten.

  • Booking at least a few weeks ahead of your flight from Seattle to Osaka is always a good idea. In addition to better deals, you'll get a better selection of vehicle makes and models at UKB.

  • Kobe Airport can be found at 1 Kobekuko, Chuo Ward.

Best time to go to Osaka

  • April is the quietest month for flights from Seattle to Osaka, while June is the busiest. Choose the ideal time to visit Osaka based on whether you like a laid-back vibe or a more bustling atmosphere.

  • The warmest month in Osaka is August, with temperatures ranging between 21ºC (70ºF) and 34ºC (93ºF). Lock in your Seattle to Osaka ticket then if that's your idea of comfortable weather.

  • January sees average temperatures of between 0ºC (32ºF) and 10ºC (50ºF). Search for cheap flights from Seattle to Osaka around that time if you want to travel in cooler conditions.

More about Osaka

  • When it comes to searching for somewhere to rest your head, you'll find the best places to stay in Osaka right here. Explore these options once you've booked your flight from Seattle to Osaka:

  • All great adventures should include a little sightseeing. Osaka Castle, Dotonbori and Universal Studios Japan are attractions you won't want to skip in Osaka.

Explore more of Japan

  • Yokohama is just one of the many places in Japan waiting to be discovered after you've experienced Osaka. Around 386 kilometres to the east, its top attractions include Teishoin, Seya Christian Church and Banfukuji.

  • Nagoya is another essential stop in Japan and is around 137 kilometres north-east of Osaka. No trip is complete without seeing Nagoya Castle, Atsuta Shrine and Osu Kannon Temple.

Plan the rest of your trip from Seattle to Osaka

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