KIX - SEA

$488 Find Cheap Flights from Osaka Kansai Intl to Seattle - Compare and Save

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 9/14. 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, 0 bags

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Everything you should know

Cheapest round-trip
$1,017
Multiple Airlines
Tue 9/22Mon 9/28
KIX - SEA • 2 stops
Cheapest one-way
$488
Typical prices: $818-$926
Hainan Airlines
Mon 9/14
KIX - SEA • 1 stop
Nonstop flights
Not available
There are currently no direct flights between Kansai Intl and Seattle. You'll need at least 1 connection.
Insights
Insights
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Insights
Top layover airports
Cheapest • Avg $992 (round-trip)
Shortest trip • 12h 15m (one-way)
Insights
Insights
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Insights
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Flight 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, Sep 22 - Mon, Sep 28
Multiple Airlines Logo
7:35 am - 1:00 pm
KIX
-
SEA
45h 25m
2 stops
Multiple Airlines Logo
4:30 pm - 9:15 am
SEA
-
KIX
24h 45m
1 stop
$1,017Multiple Airlines
Tue, Sep 22 - Mon, Sep 28
Multiple Airlines Logo
9:30 pm - 2:22 pm
KIX
-
SEA
32h 52m
2 stops
Multiple Airlines Logo
12:10 am - 9:00 am
SEA
-
KIX
16h 50m
1 stop
$1,018Multiple Airlines
Tue, Sep 22 - Mon, Sep 28
Multiple Airlines Logo
7:35 am - 1:00 pm
KIX
-
SEA
45h 25m
2 stops
Multiple Airlines Logo
4:30 pm - 9:15 am
SEA
-
KIX
24h 45m
1 stop
$1,019Multiple Airlines
Tue, Sep 22 - Mon, Sep 28
Multiple Airlines Logo
9:30 pm - 2:22 pm
KIX
-
SEA
32h 52m
2 stops
Multiple Airlines Logo
12:10 am - 9:00 am
SEA
-
KIX
16h 50m
1 stop
$1,020Multiple Airlines
Tue, Sep 22 - Tue, Sep 29
Multiple Airlines Logo
7:35 am - 1:00 pm
KIX
-
SEA
45h 25m
2 stops
Multiple Airlines Logo
4:30 pm - 9:15 am
SEA
-
KIX
24h 45m
1 stop
$1,022Multiple Airlines
Tue, Sep 22 - Wed, Sep 30
Multiple Airlines Logo
7:35 am - 1:00 pm
KIX
-
SEA
45h 25m
2 stops
Multiple Airlines Logo
4:30 pm - 9:15 am
SEA
-
KIX
24h 45m
1 stop
$1,023Multiple Airlines
Tue, Sep 22 - Tue, Sep 29
Multiple Airlines Logo
10:45 am - 1:00 pm
KIX
-
SEA
42h 15m
2 stops
Multiple Airlines Logo
4:30 pm - 7:15 pm
SEA
-
KIX
34h 45m
1 stop
$1,038Multiple Airlines
Tue, Sep 22 - Mon, Sep 28
Multiple Airlines Logo
9:30 am - 2:22 pm
KIX
-
SEA
44h 52m
3 stops
Multiple Airlines Logo
12:10 am - 9:00 am
SEA
-
KIX
16h 50m
1 stop
$1,060Multiple Airlines
Mon, Oct 5 - Mon, Oct 12
Multiple Airlines Logo
7:35 am - 6:26 pm
KIX
-
SEA
26h 51m
2 stops
Multiple Airlines Logo
4:30 pm - 9:15 am
SEA
-
KIX
24h 45m
1 stop
$1,062Multiple Airlines
Mon, Oct 5 - Tue, Oct 13
Multiple Airlines Logo
7:35 am - 6:26 pm
KIX
-
SEA
26h 51m
2 stops
Multiple Airlines Logo
4:30 pm - 9:15 am
SEA
-
KIX
24h 45m
1 stop
$1,063Multiple Airlines
Booking Insights

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 is the most popular layover airport when flying from Osaka Kansai Intl to Seattle?

Percentage of 1-stop round-trip flights from Osaka Kansai Intl to Seattle chosen by KAYAK users via each layover airport in the last 12 months (only includes trips with the same layover airport on both legs).

Vancouver (YVR) is the top choice – 41% of KAYAK users who clicked on 1-stop flights from Osaka Kansai Intl to Seattle picked an itinerary connecting there.

What is the cheapest layover airport when flying from Osaka Kansai Intl to Seattle?

Average round-trip price for 1-stop flights from Osaka Kansai Intl to Seattle clicked by KAYAK users in the last 12 months (only includes trips with the same layover airport on both legs).

Flights via Incheon (ICN) offer the most affordable fares, with an average round-trip price of $992.

Which layover airport offers the shortest total travel time from Osaka Kansai Intl to Seattle?

Shortest average total travel time for 1-stop one-way flights from Osaka Kansai Intl to Seattle via different layover airports, based on KAYAK user data from the last 12 months.

Consider flying via Vancouver (YVR) for the shortest journey. The average one-way travel time for flights connecting there is 12h 15m.

Which layover airport has the quickest connection when flying from Osaka Kansai Intl to Seattle?

Average layover duration at different layover airports for 1-stop one-way flights from Osaka Kansai Intl to Seattle, based on KAYAK user data from the last 12 months.

If you prefer a quick connection, Tokyo (HND) often has the shortest layovers from Osaka Kansai Intl to Seattle, with an average of 1h 44m.

Good to know

Cheapest flight$488
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 5 days, the lowest price for a flight from Osaka Kansai Intl Airport to Seattle was $488 for a one-way ticket and $1,017 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?

    Star Alliance is the only airline alliance operating flights between Osaka Kansai Intl and Seattle.

  • 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.

Reviews of the 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.
7.1
Air CanadaOverall score based on 11321 reviews
7.3Boarding
6.8Entertainment
6.3Food
7.8Crew
7.1Comfort
Airline reviews

Got denied my flight was told on Google that Air Canada was supposed to book me a flight back home because I never was able to go to my destination. They did not help me whatsoever. I had to book a whole new flight for that reason I would write this is zero

2.0 MediocreAnonymous, Mar 2026
YVR - SEA
Read more Air Canada reviews

Got denied my flight was told on Google that Air Canada was supposed to book me a flight back home because I never was able to go to my destination. They did not help me whatsoever. I had to book a whole new flight for that reason I would write this is zero

Air Canada cancelled our flight and reschedule it 26 hours later that completely interrupted my family's long waited Japan trip, it wasn't due to natural reason such as weather but under the company's control. On the day we wasted 9 hours of our time from 6am to 3pm, including a few hours in the customer counter waiting for supervisor to handle our rescheduling. When we came to the counter for rebooking help there were at least 4 employees on the counter but we were told they were not trained to handle customer rebooking, we were also told the supervisor could come 10:30 to handle our rebooking, but she showed up more than one hour later, the end result was exactly the same so the few hours we spent waiting for her was completely wasted; We already prepaid hotel and all the tickets for the our stay in Tokyo so all of the cost for the first day is completed wasted; The $80 meal voucher issues was far less than our financial loss due to the financial cancellation, and it was not surprisingly invalid (as Your company screw up everything possible along the flight), the vouchers were supposed to last 72 hours, when we tried to used it at our lounge next day less than 24 hours from its issuing at a designated restaurant, the worker there couldn't scan the vouchers after multiple tries on all 4 vouchers issued, so we had to pay the food from our own money; For the two return flights they were also full of unfortunate events that caused bad experience and further delay and waste of our time, both flights departed late and the last leg had another significant delay of more than half an hour after touchdown, the gate was for some reason not available so we waited more than half an hour, when we got out of plane it was almost one hour later than the supposed arrival time; The gate you arranged is the farthest in Vancouver airport, also was the luggage pickup location in Seattle airport; We also called customer service for rescheduling help and after a long time wait (more than an hour) we got a call back but the CS representative was equally clueless and unhelpful. Other than a fatal crash, your company couldn't do anything right and provided the worst service possible among the tons of flights we have taken in our lives.

Boarding was challenging as we had to use the stairs from the tarmac. Stairs are okay but a roller bag makes it challenging.

My one complaint was that while we boarded using the standard enclosed gangway, when we arrived at SEATAC, the ground crew were slow to hook up the stairs. After reaching the tarmac we had to walk up a long ramp all outside in 35° weather. We just came from Bali and did not have warm weather clothes. This was in addition to having to collect our bags in Vancouver, take them through security again and then having to show our passports 4 more times all within the Air Canada section.

3 hours late departure with no explanation. $160 luggage fee (two passengers) for less than 1 hour in the air!

After i biked my flights, i was informed my flight was rescheduled for later time

I wasnt able to choose my seat during booking my flight _months_ in advance and then when I checked in for my flight, I _still_ couldnt choose my seat. I was finally able to get a seat when I got to the gate, and they stuck me in a middle seat next to a jerk. This was my return flight, and on my departing flight I was able to choose my seat, so I dont understand what the issue was but it was very annoying and a miserable ~6.5 hours on the return flight.

Flight was cancelled. Still stuck at airport. Going on 2 days straight, no sleep. Never fly Air Canada

My husbands flight last night Vancouver/Sydney was 90 minutes late in leaving. My flight tonight Vancouver/Seattle was also late in departing.

Air Canada had a lot of delays on our flight going back to Seattle. So much inconvenience for a long trip.

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

Information on your arrival and departure airports