SEA - KIX

$416 Find Cheap Flights from Seattle to Osaka Kansai Intl

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Seattle to Kansai Intl departing on 8/3. 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

KAYAK searches hundreds of travel sites at once for deals on flights to Osaka Kansai Intl Airport

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

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Everything you should know

Cheapest round-trip
$909
Typical prices: $860-$788
Cathay Pacific
mar. 8/18mar. 9/15
SEA - KIX • 1 stop
Cheapest one-way
$416
Typical prices: $404-$439
Multiple Airlines
lun. 8/3
SEA - KIX • 3 stops
Top airlines
Cheapest • from $855 (round-trip)
Best reviews • 8.3 score
Airline reviews
Airline reviews
+1
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Airline reviews
Airline reviews
+1
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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Insights
Top layover airports
Cheapest • Avg $516 (round-trip)
Shortest trip • 14h 00m (one-way)
Insights
Insights
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Insights
When to book
in advance
Our data shows that travelers who book at least 4 weeks in advance save around 15% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 19% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
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Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
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

mar., août 18 - mar., sept. 15
Cathay Pacific Logo
12:25 pm - 6:40 am
SEA
-
KIX
26h 15m
1 stop
Cathay Pacific Logo
9:05 am - 10:20 am
KIX
-
SEA
17h 15m
1 stop
$909Cathay Pacific
mer., sept. 2 - mar., sept. 15
Air Canada Logo
10:45 am - 4:25 pm
SEA
-
KIX
13h 40m
1 stop
Air Canada Logo
6:00 pm - 2:22 pm
KIX
-
SEA
12h 22m
1 stop
$957Air Canada
sam., août 29 - sam., sept. 5
Cathay Pacific Logo
12:25 pm - 12:55 pm
SEA
-
KIX
32h 30m
1 stop
Cathay Pacific Logo
9:05 am - 10:20 am
KIX
-
SEA
17h 15m
1 stop
$962Cathay Pacific
mer., août 12 - lun., sept. 14
Multiple Airlines Logo
9:43 pm - 9:15 am
SEA
-
KIX
43h 32m
2 stops
Multiple Airlines Logo
2:20 pm - 9:00 am
KIX
-
SEA
34h 40m
1 stop
$963Multiple Airlines
sam., août 15 - mer., sept. 16
Multiple Airlines Logo
7:20 pm - 4:25 pm
SEA
-
KIX
29h 05m
1 stop
Multiple Airlines Logo
7:35 am - 2:22 pm
KIX
-
SEA
22h 47m
2 stops
$970Multiple Airlines
mer., sept. 2 - mar., sept. 15
Multiple Airlines Logo
5:45 am - 8:50 pm
SEA
-
KIX
23h 05m
2 stops
Multiple Airlines Logo
6:00 pm - 10:42 pm
KIX
-
SEA
20h 42m
1 stop
$973Multiple Airlines
jeu., août 13 - lun., sept. 14
Multiple Airlines Logo
7:07 am - 9:15 am
SEA
-
KIX
34h 08m
2 stops
Multiple Airlines Logo
2:20 pm - 9:00 am
KIX
-
SEA
34h 40m
1 stop
$977Multiple Airlines
sam., août 15 - mer., sept. 16
Cathay Pacific Logo
12:25 pm - 6:05 pm
SEA
-
KIX
37h 40m
1 stop
Cathay Pacific Logo
9:05 am - 10:05 am
KIX
-
SEA
17h 00m
1 stop
$987Cathay Pacific
mer., août 26 - mer., sept. 2
Cathay Pacific Logo
12:25 pm - 6:40 am
SEA
-
KIX
26h 15m
1 stop
Cathay Pacific Logo
9:05 am - 5:39 pm
KIX
-
SEA
24h 34m
2 stops
$991Cathay Pacific
sam., août 15 - mar., sept. 15
Air Canada Logo
7:20 pm - 4:25 pm
SEA
-
KIX
29h 05m
1 stop
Air Canada Logo
6:00 pm - 2:22 pm
KIX
-
SEA
12h 22m
1 stop
$997Air Canada
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 August.

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 November, where tickets cost $685 (return) on average. On the other hand, the most expensive months are June and December, where the average cost of round-trip tickets is $1,243 and $971 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 15% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 22 weeks before departure.

Good to know

Low seasonMay
Cheapest flight$416
Best time to beat the crowds with an average 2% drop in price.
Most popular time to fly and prices are also 19% 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 $416 for a one-way ticket and $855 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 $810 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 $734 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 1220 reviews
8.0Entertainment
8.7Crew
8.5Boarding
8.2Comfort
7.7Food
Airline reviews

I thought I bought the ticket directly through Kayak not a 3rd party

2.0 MediocreCristina, Jun 2026
LAX - HND
Read more ANA reviews

I thought I bought the ticket directly through Kayak not a 3rd party

I like that we made it faster than regularly scheduled. Everything else was poor. The boarding was slow and chaotic. One person was screaming instructions to people that didn’t understand and there was only one camera so boarding was slow. The crew was not very friendly and one stewardess was extremely rude to everyone the entire flight. The food was not good and not themed to the country we were going to like every international flight I’ve taken. Lastly the seats were awful. After this flight I would never recommend United and will actively avoid booking another flight through them.

When I checked in, it printed two bag tags. The helper said they would cancel the other. They canceled both and my bag was left behind

It was really fast to Tokyo. Much faster than the budget carriers. However a lot less space than international flights.

The ladies are great seats should be a little bigger!

Couple of hours delayed, we had to re-booked our Shinkansen reservation twice. United Aiines need to improve their time!

The check-in started 3 minutes early; there were people lining up a half hour before. I was third, and I got checked in and passes in hand for my connection as well; I walked away from the desk one minute before it was even supposed to be open. Amazing. That said, the food on the first leg of my trip was not good, and I didn’t finish it. Second leg, it was tasty. You get a cup of Häagen-Dazs after dinner. The staff were polite and helpful. Will use again.

Crew was fantastic. Seats were not completely lay flat but still comfortable to watch a show. International food was lobster which was very big but a little tough. The scallop appetizer was delicious. Loved the individual air conditioning vent at each seat. Flight overall was very smooth and very good.

Staff was friendly but couldn't find way to track them down during flight. Food tried to be gourmet but was just too unusual. Business class seats were hard. Even sitting on the pillow, was still painful. Have to give them credit for on-time flights and decent gate area.

Flight was excellent. Transfer from one airport to another airport for a connecting flight was difficult and stressful.

Smooth sailing trip, pilots are good. Less amount of food offered but the quality is okey.

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’d have rated Asiana good except an unfortunate incident in which I felt one of your employee didn’t really help us. During the first leg of the trip, the flight from LAX to ICN, I left my backpack on the plane. When I realized, I reported to one of your employee who promised me that it’d be taken care of, that my backpack will be there at HCM city. When we arrived there, HCM people had no idea and my backpack was still at Incheon airport who denied any knowledge whatsoever. I was left in the cold and felt helpless. I was very disappointed. I’d like someone to look into this and let me know.

I am thankful that I was able to fly using Asiana

It was my first time flying Asiana but i was very pleased with how professional and understanding the flight crew is with little kids. One flight attendant held my 3 year old daughter’s hand guiding her to the exit after landing while i had my hands full with luggage and my infant. She was very helpful.

Better screens, it would have been nice to have more comfortable seats.

It was great, but my bag was not loaded onto the connecting flight. I'm currently getting it resolved. If this isn't a problem, everything else was excellent.

Check in & bag drop was straightforward. Alaskair changed the gate approx 40 min before departure, and I only became aware due to Google wallet update to my boarding pass. Had to move from gate N1 to C9 which required use of the Train, luckily I had time available.

Very short leg - too short for any meals/snacks or entertainment.

Super impressed by staff courtesy, and assistance, Flight was one of the best I've had despite turbulence... Will definitely be flying Alaskan air as my preferred choice

My boarding passes were pulled from my Apple wallet and my 3 family members who were all sitting together in the same row all got put middle seats and were one of the last to board and barely were able to get our bags in the luggage bins.

Was disappointed not to have known Alaska Air offers no music, no flight aware, no films.

I was surprised by everything. The cleanliness, the punctuality, the friendliness of the crew… and the Wi-Fi! Please keep up the good work.

The flight attendant and first class were very friendly, efficient, and wanted to make sure that service was great. Highly recommend this airline.

Thank you to everyone, the crew and pilots.. they were so amazing!!

Crew was so kind, flight was easy, thank you so much for everything

The plane was to narrow. Uncomfortable seats.. Kayak is Awesome!

Didnt make it on flight. Flight was delayed. Then had to get rebooked for a flight that was 8 hours later. Guess who had to wait for 8 hours at the airport?

The Air Canada AC1 flight from Toronto to Tokyo on May 16 was great overall. Service, crew, food and entertainment were all excellent and everything ran smoothly. We had emergency exit seats so legroom was amazing, but the seats themselves weren’t very comfortable and the plane feels like it could use an upgrade for a long-haul flight. Aside from that, everything else was perfect.

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.

The plane was very cramped to point there was no way not to touch person beside you and a stewardess screamed at my son when I touched her arm to get her attention to let her know she forgot to give him his dinner when she passed him and gave a dinner to passenger behind him. Very inappropriate response and She never came back to apologize and other stewardess said she was sorry “if I felt” she was inappropriate. Horrible experience and she should be reprimanded for her behavior

Everything went smoothly — on-time departure and very organized boarding. We pre-ordered vegan meals, which were fine but not especially memorable. We may have had slightly higher expectations given it was a Japanese airline. It felt like a dinner meal than a breakfast. Overall, it was a good flight experience and we would recommend it.

This flight with a lot empty place , and I have more room, feeling comfortable.

Snacks were just placed and many people were hungry and unaware they were available. Ran out of water bottles. Attendants not available. Missed entire meal.

The cabin crew was professional and there were plenty of movie choices, but the food was a bit sub-standard.

The flight was delayed an hour, but not because of Air Canada. The crew was polite, professional, and competent. The food was above average for Air Canada, but just fine. The stand out for me in the 10 hour flight was the entertainment package. The best of any airline I’ve experienced so far. Looking forward to my return flight to finish some more of the shows I was watching.

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

Information on your arrival and departure airports