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SEA - OSA

$519 Find cheap flights from Seattle to Osaka

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 Osaka departing on 9/29. 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
0 bags
Tue 6/11
Tue 6/18

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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.
In the last 7 days travelers have searched 42,369,914 times on KAYAK, and here is why:

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Cheap flight deals from Seattle to Osaka (SEA-OSA)

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Seattle to Osaka 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 and deals for you by selecting your travel dates.
Choose your dates
1:10 am - 6:05 pmSEA-KIX
24h 55m1 stop
2:00 pm - 7:30 pmKIX-SEA
21h 30m1 stop
$897China Airlines
Find Deal
Sun, Sep 22 - Mon, Oct 7
1:40 am - 6:05 pmSEA-KIX
24h 25m1 stop
2:00 pm - 7:50 pmKIX-SEA
21h 50m1 stop
$929China Airlines
Find Deal
Mon, Sep 9 - Sat, Sep 14
5:50 am - 4:20 pmSEA-KIX
18h 30m1 stop
7:00 pm - 10:20 pmKIX-SEA
19h 20m1 stop
$1,044Air Canada
Find Deal
Tue, Jul 23 - Tue, Oct 8
1:30 am - 10:10 amSEA-KIX
16h 40m1 stop
12:55 pm - 7:10 pmKIX-SEA
22h 15m1 stop
$1,061EVA Air
Find Deal
Wed, Oct 16 - Thu, Oct 31
10:40 am - 4:20 pmSEA-KIX
13h 40m1 stop
6:00 pm - 10:20 pmKIX-SEA
20h 20m1 stop
$1,071Air Canada
Find Deal
Thu, Oct 10 - Sun, Oct 20
1:30 am - 12:10 pmSEA-KIX
18h 40m1 stop
11:10 am - 7:30 pmKIX-SEA
24h 20m1 stop
$1,086EVA Air
Find Deal
Wed, Oct 9 - Sun, Oct 20
7:40 am - 6:45 pmSEA-KIX
19h 05m1 stop
8:45 pm - 10:10 pmKIX-SEA
17h 25m1 stop
$1,250Hawaiian Airlines
Find Deal
Fri, Sep 27 - Mon, Oct 7
4:40 pm - 4:40 pmSEA-UKB
56h 00m2 stops
7:05 am - 6:26 pmUKB-SEA
27h 21m2 stops
$1,364ANA
Find Deal
Sun, Sep 22 - Thu, Sep 26
4:40 pm - 4:40 pmSEA-UKB
56h 00m2 stops
7:05 am - 2:25 pmUKB-SEA
23h 20m1 stop
$1,370ANA
Find Deal
Sun, Sep 22 - Thu, Sep 26
8:45 am - 6:45 pmSEA-KIX
18h 00m1 stop
8:45 pm - 9:45 pmKIX-SEA
17h 00m1 stop
$1,432Hawaiian Airlines
Find Deal
Mon, Aug 12 - Mon, Aug 26

Flights from Seattle to Osaka - Travel Insights & Trends

Get data-powered insights and trends into flights from Seattle to Osaka 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?

The average price of all flights from Seattle to Osaka clicked on KAYAK for each day over the last 12 months.
Your flight ticket price will generally be cheaper if you fly to Osaka on a Sunday and more expensive on a Friday. On your return trip to Seattle, you should consider flying back on a Monday, and avoid Tuesdays for better deals.

What is the cheapest month to fly from Seattle to Osaka?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Seattle to Osaka, 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 is May, where tickets cost $1,099 on average. On the other hand, the most expensive months are December and November, where the average cost of tickets is $1,895 and $1,338 respectively.

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

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from Seattle to Osaka, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from Seattle to Osaka, you should book around 1 day before departure. For the absolute cheapest price, our data suggests you should book 54 days before departure.

Which airlines provide the cheapest flights from Seattle to Osaka?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
In the last 72 hours, the cheapest one-way ticket from Seattle to Osaka found on KAYAK was with China Airlines for $519. China Airlines proposed a round-trip connection from $897 and Air Canada from $1,044.

Good to know

Low season

January

High season

June

Cheapest flight

$519
Best time to beat the crowds but there is an average 1% increase in price.
Most popular time to fly and prices are also 10% lower on average.
Flight from Seattle to Osaka Kansai Intl

When to book flights from Seattle to Osaka

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

  • What are the different ticket classes available for flights from Seattle to Osaka, and how do airlines handle them?

    Delta Airlines offers Economy, Comfort+, First Class, and Delta One class. Japan Airlines provides Economy, Premium Economy, Business, and First Class options. ANA also offers Economy, Premium Economy, Business, and First Class. Each class has its own set of services and amenities, varying in comfort and price.

  • Which special amenities do airlines provide on flights from Seattle to Osaka?

    Delta Airlines offers in-flight entertainment, Wi-Fi on select aircraft, and complimentary snacks and beverages. Japan Airlines provides many amenities, including fully flat beds in First Class, Sky Wider seats in Premium Economy, and traditional Japanese cuisine options. ANA offers in-flight Wi-Fi, personal screens with entertainment, and meals inspired by Japanese and international flavors.

  • How can I leave the airport in Osaka after arriving from Seattle?

    Upon arrival in Osaka, you can utilize transportation services like Kansai Airport Limousine, Osaka Airport Transport, and Nankai Electric Railway. These companies offer airport shuttles, buses, and trains that can take you to various destinations within the city. They provide convenient and reliable options for getting out of the airport and reaching your final destination.

  • Do airlines accommodate special diets on flights from Seattle to Osaka?

    Delta Airlines offers special meals for passengers with specific dietary requirements, including vegetarian, vegan, and gluten-free options. Japan Airlines also caters to special dietary needs, offering meals for vegetarians, vegans, and those with religious or medical restrictions. ANA provides special meal options, such as vegetarian, vegan, and halal meals, with prior requests during booking or before the flight.

  • What is the cheapest flight from Seattle to Osaka?

    In the last 3 days, the lowest price for a flight from Seattle to Osaka was $519 for a one-way ticket and $897 for a round-trip.

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

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

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

    On your way to Osaka, you’ll fly out from Seattle/Tacoma Intl. You’ll be landing in one of Osaka’s 2 airports: Osaka Itami or Osaka Kansai Intl.

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

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

  • Which airline alliances offer flights from Seattle to Osaka?

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

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

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

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

    The two airlines most popular with KAYAK users for flights from Seattle to Osaka are Korean Air and ANA. With an average price for the route of $1,517 and an overall rating of 8.5, Korean Air is the most popular choice. ANA is also a great choice for the route, with an average price of $1,485 and an overall rating of 8.4.

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

    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.

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

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

    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 with an airline and back to Seattle with another airline.

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

    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 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 tips for finding a cheap flight from Seattle to Osaka

  • When traveling with pets from Seattle (SEA) to Osaka (OSA), consider Delta and Japan Airlines. Delta allows pets in the cabin on certain flights, while Japan Airlines offers pet-friendly services in their cargo holds. Check their specific requirements, restrictions, and fees to ensure a smooth journey for your furry friends.
  • Travelers from Seattle to Osaka must have a visa to enter Japan. Ensure you have the necessary visa by contacting the Consulate-General of Japan in Seattle or visiting their website. Be sure to apply well in advance to avoid any last-minute complications.
  • Consider airlines like Alaska Airlines and ANA (All Nippon Airways) to reduce your carbon footprint while flying from Seattle to Osaka. Alaska Airlines is committed to sustainability initiatives, including reducing emissions and investing in more fuel-efficient aircraft. ANA has also implemented various measures to minimize environmental impact, such as utilizing advanced technologies and biofuels.
  • Layovers are common when traveling from Seattle to Osaka. Airlines like United Airlines and Korean Air often offer flights with layovers in cities such as San Francisco, Los Angeles, or Seoul. Use this opportunity to explore the layover city or take a break before continuing your journey.
  • Each airline has its own baggage policy when flying from Seattle to Osaka. Delta Airlines allows one free checked bag for economy class, while Japan Airlines permits two. ANA also allows two free checked bags, whereas Alaska Airlines has a more flexible policy with a weight-based system. Familiarize yourself with the specific baggage allowances and any additional fees to avoid surprises at the airport.
See more tips

Top 5 airlines serving from Seattle to Osaka

 
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 Osaka? 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 918 reviews
7.8Food
8.3Comfort
8.8Crew
8.6Boarding
8.0Entertainment
Airline reviews

The space for the seats i like it. Its not too close like other air line. The food is ok and also the staff. I'm waiting for my flight rewards point because until now i didn't recieved it.

10.0 ExcellentAnonymous, Apr 2024MNL - HND
Read more about ANA reviews

The space for the seats i like it. Its not too close like other air line. The food is ok and also the staff. I'm waiting for my flight rewards point because until now i didn't recieved it.

The staff, ground and air, at ANA was very helpful and friendly during check in, boarding and during the flight. This is the reason why I always fly ANA whenever I go to Manila. The food was not the best but the flight crew more than makes up for the shortfall.

First I will say this was really NOT an ANA flight. ANA used a UNITED jet to perform this flight. I specifically booked with ANA because I did NOT WANT TO FLY UNITED FOR INTERNATIONAL FLIGHTS. So to spend $1800.00 and then discover after booking that it was going to be handled by United was very disappointing. I will be more careful next time when I book. The interior was very cramped in economy class; the dinner meal was terrible and also had extremely small portions for an international flight - the bread roll was ice cold and stale - that salad was very wilted; I’ve never had a “snack” that was so salty that it was difficult to eat; the breakfast “waffle” was practically unrecognizable. Really horrible meals for a very expensive international flight. Bathroom floor was also pretty dirty. I’m hoping my return flight is a real ANA airplane that is cleaned and serviced by ANA personnel with ANA meals. I will never book with ANA again if they continue to use UNITED airline jets. Yuck!!!🤢

Ticket was purchased as a United Airlines flight (operated by All Nippon) like what does that even mean? Makes for a VERY confusing flight experience. For instance, what do I look for a United drop off signage and ticket counter or ANA? No explanation anywhere to be found. I also felt a little bit scammed by the obsurdely restrictive seat selection provided. Only middle seats available!! Are you kidding me!! On 6hr + 10hr flights you're forcing me into the middle seat without telling me before I purchased the ticket?? This should be illegal. And to top it off, on the Tokyo LA leg there were quite a few empty seats including window seats! I must also say, the food was a dissappointing as well for my taste, fish with rice ( mostly plain white rice) or a vegetable medly for the breakfast meal? Should be at least 4 choices and at least 1 with eggs. Outside of these issues flight was otherwise ok.

Ground and flight crew were all courteous, extremely helpful and professional. Overall, process is really organized, from boarding to disembarkation.

This is a very long flight and the first time I have flown on a Japanese airline. I was very impressed with the staff. They worked hard and offered food and drink regularly. Plane was very well cared for. The let room was good . Food was ok but better than other airlines.

It was very nice. I was a bit disappointed by the few meal services. There were probably more drink services that I missed while sleeping, but I would have liked the crew to bring more than one drink service before landing and to bring more than one drink service and coffee service after take off

The space and bed was very comfortable , flight attendants very nice. The food was not tasty at all. I ordered the rib eye and it was so tough I couldn’t cut it.

I wish the serve should leach and drink. Maybe because only 2hr

Seat was roomy enough . The Asian selection for a meal was good . The tortellini was not very good. Service was excellent. O

Fast and efficient boarding. Flight was on time. Service was very good for our long flight. First time flying with this airline and I would highly recommend.

Eva Air's Business Class is pretty decent. With the given price, I think that the food can be better.

Pleasant, comfortable, and entertaining. All told, ZERO issues with it. And sadly, so far the flight was WAY more comfortable than the hellhole that is "Lambug Beach Resort" at Badian Beach!

It was a pleasant fly with Eva Air from NYC to Taipei. The crew were friendly and the food was exceeded my expectation.

Eva air is a good airline. The seats on the way to Taipei could have certainly been more comfortable, but all in all it was a pretty good experience.

Overall the flight was what might be expected for a long haul flight to Asia in economy class. The cabin crew was attentive and the food was good. Boarding was fairly fast and easy. The one thing I found frustrating was the EVA app. It is terrible. Trying to do anything on it was almost impossible.

EVA would not help with ticket issue since they were purchased through a travel agency. Even though it was EVA ticket stock. Travel agency Budget Air didn't reissue ticket after airline change which I didn’t learn until trying to checkin on Christmas Day and there was no contact number for the agency to help. I will never use Budget Air to purchase flight again and disappointed in EVA’s refusal to help. Thankfully just under 12 hrs before departure someone from the agency was available to reissue tickets. I was starting to think we would not be flying and the stress trying to resolve was completely unacceptable.

seamless check in/ friendly staff, food is good, always love flying Eva Air

Very uncomfortable and crowded seats in economy. Flight attendant refused request to move to nearby unused seat with more legroom because “It was more money for that seat”. It was also near impossible to reach airline directly by phone. Waits upwards of an hour and not very helpful customer service representatives after long wait. Cannot recommend this airline.

My experience with Eva sir was good except the long walk in LA Lex, that was inconvenient for my age,

The food was not that good. I liked the miso, green tea, and ice cream. I wasn’t able to put my carry on bag under the seat in front of me. The flight was smooth. Please expand your choices of movies especially the new ones. I can’t choose any of those films. They’re old.

I like the braised beef., miso soup,, and green tea. Very little choices of hollywood movies. The PA announcement in English was not very clear and very soft. I could hardly hear.

More updated movies & Chinese movies. The food sometimes overcooked. Prefer to have more neat snacks in between than just choose from the menu. Please change the menu every now and then. This is my second time flying within one year and the menu didn’t change at all!

Food is lagging. Very poor choice. Like vending machine fast food.

Please change the menu more often. The beef is not tender, more choice in ice cream flavor. Dessert is not good too.

The Experience was fantastic, it's a quick flight so no entertainment or food. Just a refreshment

Great crew, Japanese domestic flight is just a drink service but crew are very attentive

Again I paid for an upgrade on my credit card didn’t get it need a refund. . American I not good at gettin in contact for refunds.

l enjoyed the variety of good and drink choices. The flight attendants were very quick and efficient to our needs.

-Bathrooms were regularly checked/maintained. -Food was okay, but the miso soup was good. -Top of my foot got bitten by a bug when I took off my shoes and was only wearing my socks. It was swollen and very itchy for several days.

Very smooth flight, great landing- entertainment didn’t work so well

Pilot and first officer did really an amazing job. I can best discribe their flying as finesse. Inital service with food/beverages was great, however after that the crew just kind of packed it in and were sitting in the galleys chatting for the remainder of the flight. I wanted a bottle of water, went to the mid plane galley, was told they were only available in the back, so had to walk the length of the plane just to get a bottle of water. That was a new experience on an airplane for me. Pretty sure evem Spirit will bring you the bottle of water you are paying for. Seat was comfy, magazine worth the read. Entertainment nonexistant unless you want to pop for the $4 headphones.

When I got into Maui I had a layover but there was a flight to Honolulu earlier. I asked the gate agent to see if I could get on the earlier flight to get home sooner. Ke'van is so great! He was very helpful and friendly and I appreciate him very much

Unable to perform online check in using Hawaiian Airlines APP Only ONE meal choice available - Totally unacceptable Low Airline ranking compared to other International airlines and service Old Airplane (A330-200) Entertainment system - Outdated Total Score - Mediocre

This flight was delayed approximately 4 hours due to bad weather in HNL.

It was great with the exception of a rude desk member on the way back. And a terrible sandwich on the way back.

One of the best flights Ive had in a long time

Flight delayed then cancelled then gate changed two times then baggage lost.

My flight was canceled minutes before boarding started. It took three hours to get rebooked and it was on another airline overnight with another stop added. All I got was two $15 food coupons.

The plane is extremely loud and there’s no place to charge devices.

Squeeze like sardines. ANA has much better leg room. The food on air canada was disgusting. Worse that left over microwave dinner. Like you heated up microwave dinner then saved it overnight, then microwaved it again and added nasty garnish to try to elevate but instead made it as edible as cat food.

They canceled the flight on us very close to the flight date .

It took 66 hours to get from Seattle to Tel Aviv. As a minor, I was left for more than 12 hours in Toronto and Frankfurt without hotel and food vouchers. It took 5 layovers. It was insane and not okay

It was delayed but got us to YYZ. I had great copassengers.

Flew SEA-CA, then CA-NRT. First flight was short but very uncomfortable, dirty, and had very small overhead storage space. The seats and fans were not cleaned and had visible dirt on them. Second flight was perfect.

My second flight ended up being through United and it was fine. Again, just frustrating that it was so late.

My experience was pretty frustrating because the first leg of my flight on United (though booked through Air Canada) was delayed causing me to miss my connecting flight on Air Canada. This could have been an easy solve as there was a direct flight later that morning via Air Canada that they easily could have put me on which would have only gotten me to my destination 2 1/2 hours later but because United and Air Canada don’t seem to have good communication they gave me the run around both telling me to talk with the other which I did three times to no avail. I ended up taking the delayed flight and getting on a new connecting flight which ended up getting me to my destination 6 hours later and I missed the event I was planning to go to this evening.

Everything went smoothly and as expected. We were on time and one flight arrived early.

First time flying Air Canada and the trip was very pleasant! They did a great job getting us out of Toronto and into Rome (early!) For an international flight it was very enjoyable.

This is not a Business Class equipped airplane and even the crew apologize before take over BUT BUT Air Canada charged full business class fare

Book cheap flights from Seattle to Osaka

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Seattle to Osaka found on KAYAK in the last 72 hours.
9/29Sun
1 stopChina Airlines
24h 55mSEA-KIX
$519
8/24Sat
1 stopChina Airlines
19h 10mSEA-KIX
$551
7/29Mon
1 stopAir Canada
19h 05mSEA-KIX
$602
10/6Sun
1 stopEVA Air
16h 40mSEA-KIX
$612
8/25Sun
1 stopAir Canada
30h 55mSEA-KIX
$623
10/12Sat
1 stopJapan Airlines
14h 20mSEA-ITM
$672
7/29Mon
1 stopANA
25h 25mSEA-ITM
$681
8/25Sun
1 stopJapan Airlines
14h 20mSEA-ITM
$691
8/3Sat
1 stopEVA Air
17h 00mSEA-KIX
$742
8/4Sun
1 stopANA
13h 05mSEA-UKB
$845

Search by stops

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Last minute flights from Seattle to Osaka

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from Seattle to Osaka that are departing in the next 10 days.
5/15Wed
multi-stopCathay Pacific
33h 20mSEA-KIX
5/23Thu
multi-stopCathay Pacific
38h 57mKIX-SEA
$1,363
5/15Wed
multi-stopCathay Pacific
35h 15mSEA-KIX
5/23Thu
multi-stopCathay Pacific
38h 57mKIX-SEA
$1,378
5/13Mon
multi-stopHawaiian Airlines
19h 05mSEA-KIX
6/10Mon
multi-stopHawaiian Airlines
17h 00mKIX-SEA
$1,532
5/14Tue
multi-stopCathay Pacific
33h 20mSEA-KIX
5/28Tue
multi-stopCathay Pacific
30h 17mKIX-SEA
$1,570
5/15Wed
multi-stopHawaiian Airlines
19h 05mSEA-KIX
5/23Thu
multi-stopHawaiian Airlines
17h 35mKIX-SEA
$1,782
5/13Mon
multi-stopEVA Air
18h 20mSEA-KIX
5/28Tue
multi-stopEVA Air
24h 20mKIX-SEA
$2,347
5/15Wed
multi-stopANA
26h 40mSEA-UKB
5/23Thu
multi-stopANA
27h 22mUKB-SEA
$2,596
5/15Wed
multi-stopANA
26h 40mSEA-UKB
5/23Thu
multi-stopANA
23h 20mUKB-SEA
$2,602
5/13Mon
multi-stopAir Canada
21h 05mSEA-ITM
6/10Mon
multi-stopAir Canada
16h 12mITM-SEA
$2,686
5/17Fri
multi-stopEVA Air
18h 20mSEA-KIX
5/26Sun
multi-stopEVA Air
22h 20mKIX-SEA
$8,631

Search by stops

Search by airline

Search by price

Seattle - Osaka Flights

Departure:

Seattle (undefined)United States

Return flight deals:

Osaka - Seattle

Cabin classes: