KIX - SEA

$455 Find Cheap Flights from Osaka Kansai Intl to Seattle

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Kansai Intl to Seattle departing on 8/29. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to Seattle

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Osaka to Seattle, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Osaka to Seattle, as well as popular online travel agencies
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 20% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Flights Deals
Useful Info
Flights Deals

Cheap Flights from Kansai Intl to Seattle (KIX-SEA)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Kansai Intl to Seattle that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Kansai Intl to Seattle

Tue, Jul 8 - Sun, Jul 13
 Logo
6:15 pm - 12:45 pmKIX-SEA
34h 30m1 stop
 Logo
2:30 pm - 10:50 pmSEA-KIX
16h 20m1 stop
Tue, Oct 7 - Thu, Oct 30
China Airlines Logo
1:10 pm - 7:20 pmKIX-SEA
22h 10m1 stop
China Airlines Logo
1:10 am - 1:20 pmSEA-KIX
20h 10m1 stop
$846China Airlines
Find Deal
Wed, Aug 20 - Wed, Sep 3
Delta Logo
12:35 pm - 2:01 pmKIX-SEA
17h 26m1 stop
Delta Logo
12:35 pm - 9:00 pmSEA-KIX
16h 25m1 stop
$864Delta
Find Deal
Fri, Jul 11 - Tue, Jul 15
 Logo
11:35 am - 12:45 pmKIX-SEA
17h 10m1 stop
 Logo
2:30 pm - 10:50 pmSEA-KIX
16h 20m1 stop
Tue, Oct 7 - Fri, Oct 31
Air Canada Logo
6:05 pm - 6:36 pmKIX-SEA
16h 31m1 stop
Air Canada Logo
5:50 am - 5:35 pmSEA-KIX
19h 45m1 stop
$890Air Canada
Find Deal
Mon, Aug 18 - Mon, Sep 8
Korean Air Logo
6:20 pm - 10:50 amKIX-SEA
32h 30m1 stop
Korean Air Logo
12:50 pm - 11:20 amSEA-KIX
30h 30m1 stop
$899Korean Air
Find Deal
Mon, Aug 18 - Sat, Aug 30
Korean Air Logo
6:20 pm - 10:50 amKIX-SEA
32h 30m1 stop
Korean Air Logo
1:20 pm - 5:05 pmSEA-KIX
35h 45m1 stop
$909Korean Air
Find Deal
Thu, Jul 10 - Mon, Jul 14
Asiana Airlines Logo
10:50 am - 12:45 pmKIX-SEA
17h 55m1 stop
Asiana Airlines Logo
2:30 pm - 9:05 pmSEA-KIX
14h 35m1 stop
$948Asiana Airlines
Find Deal
Thu, Jul 10 - Mon, Jul 14
Asiana Airlines Logo
10:50 am - 12:45 pmKIX-SEA
17h 55m1 stop
Asiana Airlines Logo
2:30 pm - 9:05 pmSEA-KIX
14h 35m1 stop
$963Asiana Airlines
Find Deal
Fri, Aug 8 - Thu, Sep 4
Delta Logo
9:05 am - 10:44 pmKIX-SEA
29h 39m2 stops
Delta Logo
12:35 pm - 9:00 pmSEA-KIX
16h 25m1 stop
$1,461Delta
Find Deal
Useful Info

KAYAK's insights & trends for Kansai Intl to Seattle flights

Get data-powered insights and trends into flights from Kansai Intl to Seattle to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Osaka Kansai Intl to Seattle?

The average price of all round-trip flights from Osaka Kansai Intl Airport to Seattle clicked on KAYAK for each day over the last 12 months.

If your flying dates are flexible, you should consider flying to Seattle on a Thursday, as we generally find the cheapest rates on that day for this route. On the other hand, Sunday is the most expensive day to fly from Osaka Kansai Intl to Seattle. For your return ticket, we recommend flying on a Thursday and avoiding Sundays for the best deals.

Good to know

Low seasonFebruary
High seasonDecember
Cheapest flight$455
Best time to beat the crowds with an average 27% drop in price.
Most popular time to fly with an average 6% increase in price.
Flight from Osaka Kansai Intl to Seattle

When to book flights from Kansai Intl to Seattle

Are your dates flexible? Find out the best times to travel from Kansai Intl to Seattle based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Osaka Kansai Intl to Seattle flights

  • What is the cheapest flight from Osaka Kansai Intl Airport to Seattle?

    In the last 3 days, the lowest price for a flight from Osaka Kansai Intl Airport to Seattle was $455 for a one-way ticket and $795 for a round-trip.

  • Do I need a passport to fly between Osaka Kansai Intl and Seattle?

    Yes, you’ll need a passport to travel to Seattle from Osaka Kansai Intl.

  • Which aircraft models fly most regularly from Osaka Kansai Intl to Seattle?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Osaka Kansai Intl to Seattle?

    SkyTeam, Star Alliance, and oneworld are the airline alliances operating flights between Osaka Kansai Intl and Seattle, with Star Alliance being the most commonly used for this route.

  • How does KAYAK find such low prices on flights from Osaka Kansai Intl to Seattle?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Osaka Kansai Intl to Seattle.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Osaka Kansai Intl to Seattle?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Seattle from Osaka Kansai Intl is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Osaka Kansai Intl to Seattle?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Seattle with an airline and back to Osaka Kansai Intl with another airline. Booking your flights between Osaka Kansai Intl and SEA can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Osaka Kansai Intl to Seattle?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Seattle from Osaka Kansai Intl up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Top airline flying from Kansai Intl to Seattle

 
See real verified KAYAK customer reviews for airlines flying from Osaka to Seattle. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Kansai Intl to Seattle? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.2
Asiana AirlinesOverall score based on 440 reviews
8.5Crew
8.0Food
8.0Comfort
7.8Entertainment
8.4Boarding
Airline reviews

Flight was too cold. I wore a regular cotton tee and it wasn’t enough. It was a night time flight so I would have thought a blanket would be provided to passengers. A 4 hour flight and no options for a meal? I flew Asiana the next day from Seoul to Manilla. Same duration, 4 hours. They give everyone a pillow and blanket and serve a meal. Why is United so cheap and holding back meals and amenities? Also, they promote too much gay stuff and DEI in their advertisements. Please be mindful of other beliefs and don’t shove your gay ideology down my throat.

6.0 GoodAnonymous, May 2025DFW - SFO
Read more Asiana Airlines reviews

Flight was too cold. I wore a regular cotton tee and it wasn’t enough. It was a night time flight so I would have thought a blanket would be provided to passengers. A 4 hour flight and no options for a meal? I flew Asiana the next day from Seoul to Manilla. Same duration, 4 hours. They give everyone a pillow and blanket and serve a meal. Why is United so cheap and holding back meals and amenities? Also, they promote too much gay stuff and DEI in their advertisements. Please be mindful of other beliefs and don’t shove your gay ideology down my throat.

Staff always with a smile and very helpful with my mom who has mobility issues.

It was amazing. I was not expecting the phenomenal customer service Asiana provides.

It was all perfect and very pleasant for such long flights

The seats felt very small. We were supplied with pillows and blankets, which was nice. Lots of noise from the bathroom, plus exterior noise. Made it hard to hear the entertainment system, even using my own noise-cancelling headphones. The food was really bad. I generally request a vegetarian meal and one was supplied, but the pasta was cold and hard and there was nothing pleasant about it. Two meals were served on this flight; one was a repeat of the meal I had had on the flight immediately preceding this one, which was bad enough I didn't even try it. Drinks were very limited. All I wanted was water, and on a 10.5 hour flight, I was given 3 cups of about 3 ounces each.

The seats felt very small. We were supplied with pillows and blankets, which was nice. Lots of noise from the bathroom, plus exterior noise. Made it hard to hear the entertainment system, even using my own noise-cancelling headphones. The food was really bad. I generally request a vegetarian meal and one was supplied, but the pasta was cold and hard and there was nothing pleasant about it. Drinks were very limited. All I wanted was water, and on a 4 hour flight, I was given 2 cups of about 3 ounces each.

We took business class, It was comfortable and I was able to sleep.

Everything was perfect. A flight attendant even brought me snacks after I declined food due to my desire to force myself to follow the destination time zone.

For the most part, it was an enjoyable experience. It's the 2nd half of the journey was a bit uncomfortable. It was on a noticable smaller plane compared to the previous one.

Only process that my luggage didn’t make it to my destination because of short connection but I understand

Everything you need to know for your flight from Kansai Intl to Seattle

Information on your arrival and departure airports

Not what you’re looking for? Find thousands of other hotels, flights, car rentals and package deals with KAYAK.