SEA - KIX

$218 Find Cheap Flights from Seattle to Osaka Kansai Intl - Compare and Save

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Seattle to Kansai Intl 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
$218
Typical prices: $752-$1,042
Air Canada
Mon 9/14Mon 9/28
SEA - KIX • 1 stop
Cheapest one-way
$398
Typical prices: $409-$548
Multiple Airlines
Wed 8/19
SEA - KIX • 2 stops
Top airlines
Cheapest • from $218 (round-trip)
Best reviews • 8.3 score
Airline reviews
Airline reviews
+1
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Airline reviews
Airline reviews
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Nonstop flights
Not available
There are currently no direct flights between Seattle and Kansai Intl. You'll need at least 1 connection.
Insights
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Top layover airports
Cheapest • Avg $407 (round-trip)
Shortest trip • 14h 22m (one-way)
Insights
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When to book
in advance
Our data shows that travelers who book at least 4 weeks in advance save around 14% compared to booking last minute.
Insights
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Insights
When to travel
Cheapest • 22% price drop
Most popular
Good to know
Good to know
+1
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We hope you love your trip to Kansai Intl!
Flight Deals
Booking Insights
Flight Deals

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

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Seattle to Kansai Intl 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 Seattle to Kansai Intl

Mon, Sep 14 - Mon, Sep 28
Air Canada Logo
5:50 am - 4:25 pm
SEA
-
KIX
18h 35m
1 stop
Air Canada Logo
6:00 pm - 10:05 am
KIX
-
SEA
32h 05m
1 stop
$218Air Canada
Mon, Sep 14 - Mon, Sep 28
Cathay Pacific Logo
12:25 pm - 6:40 am
SEA
-
KIX
26h 15m
1 stop
Cathay Pacific Logo
7:25 pm - 10:05 am
KIX
-
SEA
30h 40m
1 stop
$813Cathay Pacific
Tue, Oct 27 - Mon, Nov 9
Cathay Pacific Logo
11:50 am - 5:40 pm
SEA
-
KIX
37h 50m
1 stop
Cathay Pacific Logo
7:05 pm - 9:10 am
KIX
-
SEA
31h 05m
1 stop
$815Cathay Pacific
Mon, Sep 14 - Mon, Sep 28
Cathay Pacific Logo
12:25 pm - 3:10 pm
SEA
-
KIX
34h 45m
1 stop
Cathay Pacific Logo
6:30 pm - 10:05 am
KIX
-
SEA
31h 35m
1 stop
$816Cathay Pacific
Wed, Nov 4 - Tue, Nov 17
Air Canada Logo
8:40 am - 5:40 pm
SEA
-
KIX
16h 00m
1 stop
Air Canada Logo
7:25 pm - 2:37 pm
KIX
-
SEA
12h 12m
1 stop
$892Air Canada
Wed, Oct 28 - Thu, Nov 5
Air Canada Logo
10:10 am - 5:40 pm
SEA
-
KIX
15h 30m
1 stop
Air Canada Logo
7:25 pm - 9:57 pm
KIX
-
SEA
19h 32m
1 stop
$892Air Canada
Mon, Aug 17 - Tue, Aug 25
ANA Logo
7:11 am - 2:50 pm
SEA
-
KIX
15h 39m
1 stop
ANA Logo
9:20 am - 2:24 pm
KIX
-
SEA
21h 04m
2 stops
$1,036ANA
Fri, Jan 22 - Sat, Jan 30
Asiana Airlines Logo
12:10 am - 9:40 am
SEA
-
KIX
16h 30m
1 stop
Asiana Airlines Logo
9:10 am - 1:55 pm
KIX
-
SEA
21h 45m
1 stop
$1,064Asiana Airlines
Thu, Dec 3 - Sun, Dec 20
Asiana Airlines Logo
12:10 am - 9:40 am
SEA
-
KIX
16h 30m
1 stop
Asiana Airlines Logo
9:10 am - 1:55 pm
KIX
-
SEA
21h 45m
1 stop
$1,071Asiana Airlines
Sun, Aug 23 - Sun, Aug 30
ANA Logo
7:00 am - 2:50 pm
SEA
-
KIX
15h 50m
1 stop
ANA Logo
7:00 am - 11:26 pm
KIX
-
SEA
32h 26m
2 stops
$1,082ANA
Booking Insights

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

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

How much is a round-trip flight from Seattle to Osaka Kansai Intl Airport?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Seattle to Osaka Kansai Intl Airport departing in September.

Flight prices are below average for this route right now.

Flights to Osaka Kansai Intl Airport from Seattle usually cost between $835 and $1,090 in September.
The lowest price found in the past 5 days was $218 on Air Canada (Sep 14-Sep 28).

What is the cheapest month to fly from Seattle to Osaka Kansai Intl Airport?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Seattle to Osaka Kansai Intl Airport, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Seattle to Osaka Kansai Intl Airport is February, where tickets cost $671 (return) on average. On the other hand, the most expensive months are June and July, where the average cost of round-trip tickets is $1,248 and $1,160 respectively.

How far in advance should I book a flight from Seattle to Osaka Kansai Intl Airport?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Seattle to Osaka Kansai Intl Airport, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Seattle to Osaka Kansai Intl Airport, you should book around 4 weeks before departure, which saves you about 14% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 21 weeks before departure.

Good to know

Low season

September

Cheapest flight

$218
Best time to beat the crowds with an average 4% drop in price.
Most popular time to fly and prices are also 21% lower on average.
Flight from Seattle to Osaka Kansai Intl

When to book flights from Seattle to Kansai Intl

Are your dates flexible? Find out the best times to travel from Seattle to Kansai Intl 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 Seattle to Osaka Kansai Intl flights

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

    In the last 5 days, the lowest price for a flight from Seattle to Osaka Kansai Intl Airport was $406 for a one-way ticket and $218 for a round-trip.

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

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

  • Which airports will I be using when flying from Seattle to Osaka Kansai Intl?

    When flying out of Seattle you will be using Seattle/Tacoma Intl. You will be landing at Osaka Kansai Intl, also known as Osaka Kansai Intl.

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

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

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

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

  • Which is the best airline for flights from Seattle to Osaka, ANA or Asiana Airlines?

    The two airlines most popular with KAYAK users for flights from Seattle to Osaka are ANA and Asiana Airlines. With an average price for the route of $827 and an overall rating of 8.3, ANA is the most popular choice. Asiana Airlines is also a great choice for the route, with an average price of $672 and an overall rating of 8.1.

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

    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 Seattle to Osaka Kansai Intl.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Osaka Kansai Intl from Seattle 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 Seattle to Osaka Kansai Intl?

    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 Osaka Kansai Intl with an airline and back to Seattle with another airline. Booking your flights between Seattle and KIX 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 Seattle to Osaka Kansai Intl?

    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 Osaka Kansai Intl from Seattle up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 4 airlines serving from Seattle to Kansai Intl

 
See real verified KAYAK customer reviews for airlines flying from Seattle to Osaka. 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 Seattle to Kansai Intl? 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.
8.3
ANAOverall score based on 1283 reviews
8.2Comfort
7.8Food
8.7Crew
8.5Boarding
8.0Entertainment
Airline reviews

It was so disappointed trip by unexpected company's fault delay. It had taken 3 hours delay for mechanical maintenance plus another 3 hours for bad weather.

2.0 Mediocreemiko, Jul 2026
IAD - HND
Read more ANA reviews

It was so disappointed trip by unexpected company's fault delay. It had taken 3 hours delay for mechanical maintenance plus another 3 hours for bad weather.

SEA HND sector internet only worked for the last 2.5hrs of flight….. never had this kind of incident with other airlines

12 of the 14 hours were in the dark, all during daylight. Didn’t use my light because it disturbed other people it was illuminating. 14 hours sitting upright in a cramped space was horrible.

The food was terrible and totally inedible. If you are flying with ANA/United bring your own food it was a long flight to be hingry

The staff is amazing, I cannot stress that enough! The food is really good and snacks at stations to take for yourselves. Economy seating is fine, not the most comfortable, but our friends in Premium Economy said they were very comfortable! Decent entertainment options, but being built in, you have to use their cheap headsets unless you have your own plug in ones. I only have Bluetooth earbuds.

Delays, plane transfer due to malfunction, no entertainment, limited beverage service.

Due to turbulence there was no inflight service, which is very understandable, The flight is very short, and safety is more important. There was a bit of a delay with take off, but was to be expected with the rain.

Great service, wonderful meals, excellent entertainment, clean bathrooms, top notch experience

It was very good. Lots of room with superior food and service. I will not hesitate to fly ANA in the future!

I chose my seat for the window: there wasn’t a window in my row. The charging function for my device didn’t work.

Not enough seat cushion. Butt was hurting especially on long flight. Not enough movie selection. Entertainment was outdated. Coffee served was cold. Other than that flight was good.

Humm, I should have known that the seat I peaked on my flight from Inchon to Manila was designed for a toddler or very small person.

The staff hold my luggage to steel and exchange my stub, i was very disappointed.

Kayak along with airfare assay are attempting to steal my money. Charges are being pressed.

Customer service and attention to details. The food was good.

I am thankful that I was able to fly using Asiana

Very clean ,flight attendants very professional,nice , Boarding was very easy

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

The boarding process was good. The toilet could be better maintained.

It’s wonderful service aboard. Delayed for departure but arrival in Korea went so well.

Multi gate changes and flight delay were irritating. Food on board was terrible and expensive for what was offered.

Overall the experience was good. Check in at the bag drop was challenging as the system was having issues and there was only one attendant helping the passengers. My personal experience was okay as it was straight forward but there were many who were having issues. The flight was good. I did not use the in flight entertainment very much as I had brought my own but it seemed to work well.

Technically this was the flight where they lost my bags, but I already explained that on the review for my connecting flight, so I'm not gonna do it again.

Hate the way they nickel and dime you on pricing. Extra for baggage, extra for a pre assigned seat. Make it one price and be done with it.

Delayed due aircraft maintenance. The plane was so small, hardly to get to the toilet when they’re serving food/drinks. But the ground crews were so helpful and trying their best to update all situation. The flight attendants not as friendly but fine.

same as the first when you pay for choice of seats than you don't receive them its very frustrating it was an extra fee of $80 dollars Craig Molan

The flight got delayed for some unknown reason to us. Then, after boarding, we stayed grounded for almost an hour without any explanation or announcement. Then, finally lifted off. When we landed and made our way to baggage claim. The luggage took 30 minutes to come! It was past midnight due to the flight being delayed and my litter children were cranky and tired! It was not a great experience. Perhaps, more explanation of what is going on with the flight would be helpful!

Flight was delayed hour and a half. Gate was changed 3 times. After boarding, sat in airplane for another hour while mechanic checked windshield. Total of 2 1/2 hrs behind schedule. Very tiring since I had ben up since 4 am to complete the flight from Honolulu to Milwaukee.

Good flight, loved the snacks (Biscoff cookies). For boarding, they forgot to change the sign showing our group was boarding. Apparently, they had announced it, but the announcements overlapped with another gate announcements and no one could actually hear what they were saying. So a group of us were waiting....and finally asked and were told we could board.

I had the row all to myself, which was fantastic! The food was pretty weak, though, which is an annoying thing about current travel. I didn't check out the entertainment, so can't rate that.

All good……but luggage didn’t make it on the airplane. Had to wait 3 days. Was a bummer.

Small suitcase used for carryon the last time was refused by boarding crew this time. Appears to be at the discretion and mood of the person on the day. Flight was only half booked, there would have been no problem with space.

They could care less about you. Just under a 4 hour delay in Seattle, leading into a missed connection in Vancouver, which led to 2 more delays that added up to 3 more hours leaving us to have to sleep on the floor of the Toronto airport cause they don't help you find accomodations and they just book you on the next flight out. Took an additional 14 hours to get home. Always given the brush off to get rid of us. Worst airline ever

All was good with comfort and ease of boarding. There was confusion from what gate to board at. Meant moving a long distance but I allowed plenty of time for this.

Good airport. Good entertainment on the big flight. Did not have a good way to prop up or mount my phone/ipad

Air Canada at SeaTac was the best. Polite, helpful, all good!

The problem in part was with the airports, not really the fault of Air Canada. Confusing directions regarding the gate, in Seattle the recommended shuttle train entrance was not working. Simular problems in Toronto. Baggage arrived in good time. Marx Bros movie on entertainment from Seattle. I was told I was laughing too loudly, by the flight attendant. No lounge in Seattle. Lounge in Toronto excellent.

Both fights were delayed. Food could be better comparing to other international flights

I found the personal kind and caring. The Problem was not enough people to serve the the customers. The flow was restricted the crowd frustrated by the wait times. Air Canada seems to hire good people but they need backup in order to provide the service we pay for.

The Montreal to Barcelona flight was cancelled half hour before boarding. We had to struggle for hours to find an alternative route through a very long route with 6 hours of transit time in Munich. It wasted almost one full day of our long awaited vacation. We are extremely disappointed.

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

Information on your arrival and departure airports