SEA - KIX

$315 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 2/1. 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.
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These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to Osaka.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to Osaka.
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Cheap Flight Deals from Seattle/Tacoma Intl 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/Tacoma Intl 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.

Recent round-trip flight deals from Seattle to Kansai Intl

Recommended round-trip deals departing in the coming months from the most popular airlines that fly from Seattle to Kansai Intl.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
12:45 pm - 5:45 pmSEA-KIX
36h 00m1 stop
10:50 am - 10:55 amKIX-SEA
17h 05m1 stop
$622Asiana Airlines
Find Deal
Mon, Feb 17 - Wed, Feb 26
12:45 pm - 5:45 pmSEA-KIX
36h 00m1 stop
5:00 pm - 11:55 amKIX-SEA
34h 55m1 stop
$635Asiana Airlines
Find Deal
Thu, Mar 6 - Thu, Mar 13
12:45 pm - 3:50 pmSEA-KIX
34h 05m1 stop
10:50 am - 11:55 amKIX-SEA
17h 05m1 stop
$637Asiana Airlines
Find Deal
Wed, Mar 5 - Wed, Mar 12
12:45 pm - 9:40 amSEA-KIX
27h 55m1 stop
7:30 am - 4:43 pmKIX-SEA
26h 13m2 stops
Wed, Feb 5 - Thu, Feb 13
12:45 pm - 8:55 pmSEA-KIX
15h 10m1 stop
8:45 pm - 4:43 pmKIX-SEA
36h 58m2 stops
Wed, Feb 12 - Wed, Feb 26
6:03 am - 6:50 pmSEA-KIX
19h 47m1 stop
7:30 am - 9:55 amKIX-SEA
19h 25m1 stop
$760Japan Airlines
Find Deal
Wed, Feb 19 - Fri, Feb 28
7:00 am - 10:20 pmSEA-KIX
22h 20m2 stops
6:50 am - 2:20 pmKIX-SEA
23h 30m1 stop
$771ANA
Find Deal
Wed, Mar 5 - Wed, Mar 12
7:00 am - 10:20 pmSEA-KIX
22h 20m2 stops
5:35 pm - 2:20 pmKIX-SEA
12h 45m1 stop
$777ANA
Find Deal
Wed, Mar 5 - Wed, Mar 12
8:03 am - 10:20 pmSEA-KIX
21h 17m2 stops
5:50 pm - 6:43 pmKIX-SEA
17h 53m1 stop
$858Japan Airlines
Find Deal
Sun, Feb 9 - Sun, Feb 16
7:10 am - 11:00 amSEA-KIX
35h 50m2 stops
9:30 am - 4:02 pmKIX-SEA
22h 32m2 stops
$893China Eastern
Find Deal
Tue, Mar 11 - Mon, Mar 17

Flights from Seattle to Kansai Intl - Travel Insights & Trends

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.

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

The average price of all round-trip flights from Seattle to Osaka Kansai Intl Airport clicked on KAYAK for each day over the last 12 months.
When flying from Seattle to Osaka Kansai Intl, you should consider leaving on a Thursday and avoid Sundays if you are looking for the best rates. For your return to Seattle, you’ll find the best rates on Thursdays and the most expensive ones on Sundays.

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 $825 (return) on average. On the other hand, the most expensive months are December and July, where the average cost of round-trip tickets is $1,606 and $1,262 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 2 weeks before departure. For the absolute cheapest price, our data suggests you should book 26 weeks before departure.

Good to know

Low season

January

High season

June

Cheapest flight

$315
Best time to beat the crowds with an average 20% drop in price.
Most popular time to fly with an average 8% increase in price.
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 3 days, the lowest price for a flight from Seattle to Osaka Kansai Intl Airport was $315 for a one-way ticket and $622 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?

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

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

    Vancouver is the most popular layover city among KAYAK users traveling from Seattle to Osaka Kansai Intl.

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

    The two airlines most popular with KAYAK users for flights from Seattle to Osaka are STARLUX Airlines and ANA. With an average price for the route of $1,030 and an overall rating of 9.1, STARLUX Airlines is the most popular choice. ANA is also a great choice for the route, with an average price of $1,358 and an overall rating of 8.4.

  • 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.

See more FAQs

Top 5 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.
8.4
ANAOverall score based on 852 reviews
8.2Comfort
8.7Crew
7.7Food
7.9Entertainment
8.6Boarding
Airline reviews

Wonderfully pleasant experience. Good meal and beverage selections. Professional air staff.

10.0 ExcellentAnonymous, Jan 2025ORD - HND
Read more ANA reviews

Wonderfully pleasant experience. Good meal and beverage selections. Professional air staff.

Seat width can be a bit wider. not nice that they charge extra for the window seats. online check in can be greatly improved. in other words, their online interface is bad.

Seat width can be a bit wider. not nice that they charge extra for the window seats.

Seats were comfortable with excellent legroom. Meals were also quite good. The cabin crew were excellent and very helpful. The check-in experience was also very smooth.

Seats had more space than expected. No recline, that is good.

Everything was excellent except for the hot cabin during the two trips. Why would you keep the cabins cool hot?

The ehole fliht went smoothly. No delays. Bur the food was not good.

Wonderful. I love ANA airlines. It's the best so far. My first pick when I travel now.

Loved that leg room was great for economy, and food was definitely better than other American airlines, great selection of movies. My mom is happy.

Flights were late on every leg of the trip. Seating was narrow and uncomfortable, and food was below average. I complained directly to the crew, and ANA, and was offered no offset or compensation.

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

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

Great service. They could offer vegetarian food and do more to reduce waste.

I like the food, the crew and everything.!!! Except for the delay in our flight.

Great service and comfortable seats. The first meal was excellent but the second meal was only satisfactory

Check in agent very rude, no greeting “Hi” or “ Thank you. Doesn’t direct where to go for gate info. In flight crew staff not friendly. Very disappointed ☹️

My favorite airline to fly across the Pacific. The Business class lounge is fantastic, the wonderful flight attendants are helpful and professional. Great comfort while flying.

The flight was delayed for 2 hours, however, we flew home safely.

I recently had the pleasure of flying with Asiana Airlines, and I can confidently say it was an outstanding experience. From the moment I checked in, the staff demonstrated exceptional professionalism and warmth. The boarding process was seamless and well-organized, ensuring a stress-free start to my journey. Onboard, the flight attendants were attentive, courteous, and went above and beyond to cater to passengers' needs. The seats were comfortable, with ample legroom, and the in-flight entertainment options were diverse and up-to-date, making the flight enjoyable and relaxing. Additionally, the meals served were delicious and well-presented, reflecting a high standard of culinary quality. The airline's commitment to safety was evident throughout the flight, with clear announcements and a reassuring presence from the crew. Overall, Asiana Airlines provided a top-tier travel experience, and I would highly recommend them to anyone seeking comfort, quality service, and a memorable journey.

I would like to commend the staff from this flight. They all looked happy and I can tell they love what they are doing and constantly smiling while serving the passengers. Special mention to the guy FA in our section. I did not get his name but he is so far the best F.A I have ever encountered!

staff are super nice and effiecient! It was a very comfortable and relaxing flight

Boarding could have been a little bit better but other than that it was a pretty good experience. I think because of the stowaway to Paris France recently they are being extra diligent about boarding passes at the gate. But they boarded the back of the plane first, and that's something I really think needs to start in the USA.

Didn't like on this return inbound flights (from Hong Kong to Vancouver) Outbound to the Hong Kong was good.

I was ordered vegetarian food, but didn't services to me :(

I did not take the flight, tried to cancel it right after I booked it, but was unable to reach anyone. I blame Kayak for this situation because they sent the booking through another company and I was unable to get anyone to talk to me about the situation. I had to just take the hit and pay for another flight through Cathay Pacific, which was wonderful. I will never use Kayak again. (I bet they don’t post this review!) I’ll just post about them on social media sites. I don’t want anyone to have to go through the hassle and expense I dealt with.

Unable to set seat assignment. Got a call from presumably “China airlines representative” but was asking for an exorbitant amount for the seat assignment. Was traveling as a family end up being assigned to different seats as a result. Will never use underpricer again.

Not many selections for entertainment. Bulk head seats are no longer available with out fee at the counter. That’s pretty lame.

All of the staff were very helpful, polite I was very satisfied with China Airlines The food was normal for airlines but I’m sure they could do better

Everything was efficient. Good leg room. Food was good. Staff were friendly.

The leg room, complementary WiFi and food and drinks. Friendly staff

Crew was great, plane was old and uncomfortable, food was barely edible

It would have been better if the airlines would of have the gate ready to go instead of waiting 30 minutes for the other airplane to take off

Everything for a 9:30 hour flight was fine. Seats are not very large, but worked. You should get up 2 or 3 times during that duration flight for your legs sake. Food needed more Protein meats for me. I have to check on a diabetic meal in future. I don't do sugar, so very little too eat. Flight was cheap so I am willing to look over other amenities. Everything else was great

Most of the crew was wonderful but I had one bad experience with a crew member. When realizing my seat did not have an outlet compatible with my phone charger that I would need for transportation upon landing I asked an older, blonde heavily madeup member (I am describing her as I did not get her name) if there were chargers elsewhere I could use she said no, that not even the flight attendants had access to any. This however being my second flight of the day with Hawaiian airlines on a similar plane knew that chargers were available in extra comfort seating. I asked another passenger if I could use their plug and they agreed. She twice berated me for this and when I asked her to please stop talking to me about it she yelled that she was writing me up and ran down the aisle and did not return. I found this behavior disturbing. The other passenger was not bothered and this didn’t appear to be a safety hazard to anyone but it seemed to enrage her that used a plug that was not next to me.

Friendly crew. One seat didn’t have a window and another no foot rest.

Free WiFi was much appreciated. The only choice for food being a pepperoni sandwich was disappointing.

The food was good but for the landing we had to wait 30 mins for the other plane to depart to its destination

Food can be more healthy instead of processed. Crew was friendly and courteous. Our flight time changed so they gave us extra comfort seats which was very nice.

Starlink is a big plus and great customer service - boarding agent and the flight attendants

Horrible I had a health emergency and couldn’t go Air Canada refused to allow me to reschedule

First, When I check in at Phx air Canada counter, I couldn’t make it myself, either at the check in counter, the lady told me that I need a Canada visa to take this plane, then I told her that I have a lots of friends go back to China and transfer in Canada, I’ve never heard they say they needed a visa to stay in the airport, also, I have US lawful green card, as I did research, I knew all U.S. green card holders don’t need a visa to go to Canada if stay a short time. And then they agent lady asked her workmates, spent over an hour then finally have the boarding passes for me. Secondly, my flight is from Phoenix to Hongkong, one stop at Vancouver, but I had to get my bag in Vancouver then re-check in again there. I asked them, they told me that because my layover time is too long (about 20 hours), so they can’t do bags check through. I understand this, just compared with other airlines I travel before, this isn’t a good experience to me.

Excellent crew, great food despite catering issues. We need more people like this.

Very good ! I would recommande it to my friend and family

Really poor travel experience. My first flight was cancelled, which cut my international trip short and threw off my schedule. I will not be flying Air Canada again if I can so help it. The crew and in-flight experience was pleasant and enjoyable but the consistent delays and cancellations are not worth it.

I was not even asked if I want some water. Joke. Steward gave me a biscuit cover in chocolate and did not even look at me.

Economy middle seat was so narrow that I could not sit back comfortably with passengers on either side of me. Over the 9-hour flight, with my body slightly twisted most of that time, my previously-healthy left knee became very painful, even though I got up to walk multiple times. The knee is still painful 3 weeks later. Otherwise, it was a nice flight, but I was crippled over my entire vacation.

Ok Did not like that the second leg of flight was moved earlier making it a rush to make

Ok Did not like that the second leg of flight was moved earlier making it a rush to make it

Overcharged by either United or Air Canada. Abuse of access to my credit/debit card.

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