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OSA - SEA

$518 Find cheap flights from Osaka to Seattle

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Osaka to Seattle departing on 9/27. 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
Mon 6/3
Mon 6/10

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These are the airlines KAYAK users have selected most often from within our search results in flight searches from Osaka to Seattle.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Osaka to Seattle.
In the last 7 days travelers have searched 43,693,958 times on KAYAK, and here is why:

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

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Osaka 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 and deals for you by selecting your travel dates.
Choose your dates
3:40 pm - 9:04 pmITM-SEA
21h 24m2 stops
5:00 am - 7:10 pmSEA-ITM
22h 10m2 stops
$716American Airlines
Find Deal
Mon, May 13 - Wed, Jun 5
1:30 pm - 8:50 pmITM-SEA
23h 20m2 stops
12:20 am - 7:10 pmSEA-ITM
26h 50m2 stops
$885American Airlines
Find Deal
Mon, May 13 - Tue, Jun 4
1:10 pm - 7:30 pmKIX-SEA
22h 20m1 stop
1:30 am - 12:10 pmSEA-KIX
18h 40m1 stop
$899EVA Air
Find Deal
Thu, Oct 17 - Sun, Oct 20
5:00 pm - 12:45 pmKIX-SEA
35h 45m1 stop
2:20 pm - 3:50 pmSEA-KIX
33h 30m1 stop
$940Asiana Airlines
Find Deal
Thu, Oct 17 - Mon, Oct 21
9:10 am - 12:45 pmKIX-SEA
19h 35m1 stop
2:20 pm - 9:40 amSEA-KIX
27h 20m1 stop
$983Asiana Airlines
Find Deal
Thu, May 23 - Wed, Jun 19
7:30 am - 8:45 amKIX-SEA
41h 15m3 stops
7:22 am - 10:15 pmSEA-KIX
22h 53m3 stops
$1,101
Find Deal
Mon, May 13 - Wed, Jun 5
6:30 pm - 7:30 pmKIX-SEA
17h 00m1 stop
1:50 am - 10:10 amSEA-KIX
16h 20m1 stop
$1,275EVA Air
Find Deal
Mon, May 13 - Tue, Jun 4
9:00 pm - 12:45 pmKIX-SEA
31h 45m2 stops
2:20 pm - 3:50 pmSEA-KIX
33h 30m1 stop
$1,301
Find Deal
Mon, May 13 - Wed, Jun 5
8:30 am - 11:52 amITM-SEA
19h 22m2 stops
1:30 pm - 7:50 pmSEA-ITM
14h 20m1 stop
$1,348Japan Airlines
Find Deal
Mon, May 13 - Wed, Jun 5
2:40 pm - 10:25 amITM-SEA
11h 45m1 stop
8:00 am - 7:50 pmSEA-ITM
19h 50m2 stops
$1,729Japan Airlines
Find Deal
Tue, Oct 15 - Fri, Oct 18

Flights from Osaka to Seattle - Travel Insights & Trends

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

The average price of all flights from Osaka to Seattle clicked on KAYAK for each day over the last 12 months.
If your flying dates are flexible, you should consider flying to Seattle on a Monday, as we generally find the cheapest rates on that day for this route. On the other hand, Tuesday is the most expensive day to fly from Osaka to Seattle. For your return ticket, we recommend flying on a Sunday and avoiding Thursdays for the best deals.

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

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from Osaka to Seattle, 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 Osaka to Seattle, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 55 days before departure.

Which airlines provide the cheapest flights from Osaka to Seattle?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
The best deals for a one-way ticket found by KAYAK users over the last 3 days were on EVA Air ($518) and Asiana Airlines ($617). The cheapest round-trip tickets were found on American Airlines ($716) and EVA Air ($899).

Good to know

Low season

October

High season

March

Cheapest flight

$518
Best time to beat the crowds with an average 18% drop in price.
Most popular time to fly and prices are also 14% lower on average.
Flight from Osaka Kansai Intl to Seattle

When to book flights from Osaka to Seattle

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

  • What is the cheapest flight from Osaka to Seattle?

    In the last 3 days, the lowest price for a flight from Osaka to Seattle was $518 for a one-way ticket and $716 for a round-trip.

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

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

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

    Osaka has 2 major airports: Osaka Itami and Osaka Kansai Intl. Seattle/Tacoma Intl is the only airport in Seattle. You’ll usually find the cheapest deals if you fly from Osaka Kansai Intl.

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

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

  • Which airline alliances offer flights from Osaka to Seattle?

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

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

    The two airlines most popular with KAYAK users for flights from Osaka to Seattle are Asiana Airlines and EVA Air. With an average price for the route of $1,036 and an overall rating of 8.3, Asiana Airlines is the most popular choice. EVA Air is also a great choice for the route, with an average price of $1,199 and an overall rating of 8.3.

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

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Seattle from Osaka 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 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 with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Osaka 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 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 Osaka 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 Osaka 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.
8.3
EVA AirOverall score based on 1542 reviews
8.2Comfort
8.6Crew
8.0Entertainment
8.0Food
8.4Boarding
Airline reviews

The type of the food requested (Asian vegetarian) was not properly met with. They have very limited snack items that may compensate for the main meals.

8.0 ExcellentAnonymous, Apr 2024TPE - JFK
Read more about EVA Air reviews

The type of the food requested (Asian vegetarian) was not properly met with. They have very limited snack items that may compensate for the main meals.

The quality of the food is pretty good. Thank you, EVA Air.

Pleasant crew. Very long flight, a bit uncomfortable at times being seated, but not too bad.

No ice for the drinks. Only gave a half a cup of your beverage. Not enough water. I got very dehydrated.

Boarding is fast and easy for economy class, food was ok baggage policies are good

Eva is one of the top airlines in Asia... but often are over priced. Finally found a reasonable rate.

My original flight was rescheduled & EVA did a good job rescheduling my flight & connecting flight.

Polite hard working crew. No complaints really. Meals were not to my liking.

Everything was fantastic! The crew really went above and beyond to make it a great flight. I felt cared for with EVA.

t and I Flight crew did excellent job taking care of us and feeding us and staying professional. The boarding was delayed by an hour and then extra security measures were taken. No real explanation except for they said it was more of a maintenance dey

Staff was excellent. Food could use more variety. -More vegetable options. Menu didn't have juice or soda listed. -The croissants were outstanding!

Asian Vegitarian food was test less No Salt or pepper served Need to improve with Chef who can caters for Peaple from India I am sure Chef knows different varieties of food Indian People like

The flight attendant, where kind of rude, there where hiding for almost 3 hours, without doing rounds to see if people needed water or pickup the water cups, the toilets were full of water cups, because they never come back to pick them up.

Flew on an Airbus 350-900. Excellent aircraft properly cleaned and serviced. Flight crew was excellent plane departed and arrived on time. The A350 has excellent air circulation far better than the 777. I would recommend Asiana to anyone looking to fly in a clean comfortable environment. This is my second round trip flight from New York to Bangkok via Asiana and I will book Asiana again!

Amazing service and fabulous syaff. Loved the jumbo jet too, comfortable.

The full flat bed was not that comfortable, hard and lumpy., too much space wasted with those bulky walls and divisions instead of making the bed 3-4 inches wider. The compartment where you put your feet is like a shoebox, poor design. Toilets of A350 are just too small, sink is too small

Airfare was ok . Food not good , seat ok but not comfortable. Lay over too long , crew was ok Overall just ok

Aside from a LOT of turbulence the flight was perfect! The flight crew was superb and the food was delicious!

2 things that really tanked our experience with this trip with Asiana Airline (which used to be among my favorite airlines): 1) The "random" security screening at the boarding gate is crazily thorough (which is completely redundant to the security screening before we went through the security checkpoint before getting into the gate area), and the water was acquired inside of the gate area (from a lounge operated by the Inchon airport). We were asked to take out *EVERY* single items from the carry-on luggage and open up every comtainers / bags / packages to inspect. To add to it, there were two inspection workers there (one seemed to be a trainee and the other seemed to be a trainer), and the trainer worker held a very unfriendly / arrogant attitude towards us. As the youngest member (a minor) of my family was being "screened", the rest of my family wanted to make sure that no inappropriate actions would happen to her. That trainer worker yelled at us and attempted to use rude body language (waving her hands) and facial expression to ask us to stay away. 2) The luggage handling at the destination was really *REALLY* bad. Among my 25+ years of travel experiences, I'm going to have to say that this was the worst luggage experience where we didn't lose our luggage. Our flight was scheduled to land 12:45pm, and landed around 1pm. 15mins delay in landing is absolutely normal. Deplane process took a bit longer than usual flight (we waited for around 20mins, after arriving at the gate, before people were able to actually leave the plane). However, the luggage took another *2 HOURS* to arrive at the baggage claim carousel. This is insane. What's worse is, due to the delay in luggage, the flurry of passengers from our flight collided with 3 other incoming flights. The US border / custom line was like the longest Disneyland attraction line winding through the entire arrival hall and around all the baggage claim carousels (like at least a thousand people). I've never seen anything like that at SeaTec airport (US border control), period. The luggage claim experience really tanked our trust and overall impression for Asiana Airline's Seattle airport ground operational effectiveness and efficiency. This has to change in order for them to remain relevant / in-business with increased competitions from Korean Air and other Asia-based airlines.

FA were very great, plane was A350 new and clean

Great service but food taste and options have gone down a few notches.

This airlines is always my favorite. Very consistent customer service and food is good. My last flight with them, I had no idea we landed because it was just that smooth of a land.

Excellent crew, immediate attention for any request. Both ways on time (rather before time arrival at Haneda). Only complaint was that the seats are not reclining like rest of the airlines that I travelled. The Backrest is fixed. The reclining is only within the box seat, so you slide down forward for reclining, not backward. So it was bit uncomfortable. The food for the day trip was excellent. For the night flight, no breakfast was served, only dinner, which was disappointing.

At least it was not very cold inside the plane. I noticed there was now a bidet in the bathroom and that’s good! I didn’t like the window seat. Flight was smooth except for 1 turbulence. Plane was on time. Thanks. Food was not that great. Miso and green tea were good! As usual movies were old and there were no changes.

Food as always. PA was not clear, especially the English ones. Very limited Hollywood movies. Unlike the first flight I had, this plane has less leg room and less room for my under seat baggage.

Please change menu every now & then bc I fly twice within the year and serving the food the same

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

First of all I had dozed off. And when I woke up, my food was on a tray without telling me the food was there or asking me if I wanted something to drink. They never came back to ask me if I wanted anything to drink and I tried to stop them several times. I personally have a problem swallowing food without something to drink with it. so therefore I could not eat., second thing for the entertainment. There was no place to plug the headset in because the tip had been broken off into the monitor to where you couldn’t even watch a movie or hear any music that was annoying .

I didn’t like the check in process I had to check in at the counter took too much time . Didn’t give the upgrade my seat .

Food and roominess were better on other international flights I’ve been on.

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

The flight was cold. The entire time, the food was nothing more than a cheese hot pocket. They wanted to sell everything else midway during the flight. They said that we were landing in a half hour and then added that we had to return to Honolulu, but gave no reason why. I was so scared I was crying. I didn’t know until we landed that it was because of an unruly passenger that we had to turn around. The crew was very cold about it, and we had to wait in the airport where they gave us snacks, which was nothing more than a bag of pretzels and a fruit juice

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.

Not great to be very honest. Our flight was delayed after we sat at the airport until 15 minutes after we were supposed to leave . We were then notified the plane was being worked on “and the parts were out in the ground and still not finished .” Even though the work started the evening before and they knew it wasn’t fixed. . Then we were told it would be a 1:15 pm boarding time so we waited then at 1:45pm we were told it would be an 11:15pm boarding . It was changed to and 3:55am boarding the next morning . We lost out on a day in Hawaii and a night of our VRBO rental.

Safety record impeccable and important since flying many hours and thousands of miles over ocean.

The experience was generally above average. The only downside was the absence of WiFi during my flight from Vancouver to San Francisco.

I was appalled to have to pay for just a regular seat when I went to book 24 hrs before my flight! Because it was only an hour flight I didn’t choose a seat from Grand Junction to Denver, but I did for Toronto and had to pay just to choose a regular available seat! In my 60+ years of flying this was the first time I have heard of this. Also, allowing people to bring on “huge “ suitcases, not carry on size, but much bigger, and then a large pack pack stuffed. So they take up all the room in the overhead bins and if we are later boarding, there is no room so we have to check our small carry on. I have already paid for and checked in one bag! I certainly will not choose to fly with United again unless it is the “only” airline available!

on demand entertainment in seat back awesome Check in Kiosk too demanding with endless demand for more information information then says go to counter. Counter agent unfriendly. Do it yourself check in luggage procedure not intuitive, upset employees frustrated the whole procedure.

It was an excellent experience, traveling from Toronto to Denver with United.

Ontime boarding. Almost 1 hour take off delay. We could have boarded slightly later since the pilots were in traffic

Flight was delayed, I had to put my luggage all the way in the back! They served only a beverage no snack on the way in Air Canada, definitely not a good first impression.

Fresh fuit or veg snacks would be so great, but there are two good restaurants in Denver airport. Try Etais UDIS or Freshens DIA for nutritious delicious pita sandwiches/ donairs and crepes in Freshens.

Crowded plane but it flew on time and had friendly staff

Headphones for the movies have too much bass and can't be adjusted. Almost impossible to hear. Great movie selections but can't really watch them because you can't hear them. Also the system is very slow.

This was the first AC flight in a long time that we experienced no delays or frustrations. The gate attendant was extremely polite and accommodating to my husband who has Parkinson’s disease which made boarding extremely stress free. Flight departed ON TIME and was a smooth ride. If only all my AC experiences could be like this.

Book cheap flights from Osaka to Seattle

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Osaka to Seattle found on KAYAK in the last 72 hours.
9/27Fri
1 stopEVA Air
17h 00mKIX-SEA
$518
9/26Thu
1 stopEVA Air
22h 20mKIX-SEA
$519
5/29Wed
1 stopAsiana Airlines
17h 55mKIX-SEA
$617
5/27Mon
1 stopAsiana Airlines
17h 55mKIX-SEA
$619
9/1Sun
2 stopsAmerican Airlines
44h 44mITM-SEA
$648
9/26Thu
2 stopsAmerican Airlines
21h 33mITM-SEA
$684
9/30Mon
2 stopsAir Canada
14h 15mITM-SEA
$1,247
10/22Tue
1 stopAir Canada
19h 20mKIX-SEA
$1,267
10/22Tue
1 stopJapan Airlines
14h 55mITM-SEA
$1,547
9/27Fri
1 stopJapan Airlines
11h 50mITM-SEA
$1,549

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Last minute flights from Osaka to Seattle

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 Osaka to Seattle that are departing in the next 10 days.
5/8Wed
multi-stopHawaiian Airlines
17h 35mKIX-SEA
6/5Wed
multi-stopHawaiian Airlines
18h 10mSEA-KIX
$1,032
5/8Wed
multi-stopAir France
50h 48mKIX-SEA
6/5Wed
multi-stopAir France
27h 55mSEA-KIX
$1,379
5/8Wed
multi-stopEVA Air
49h 42mKIX-SEA
6/4Tue
multi-stopEVA Air
18h 20mSEA-KIX
$1,509
5/8Wed
multi-stopCathay Pacific
31h 07mKIX-SEA
6/5Wed
multi-stopCathay Pacific
35h 30mSEA-KIX
$1,578
5/8Wed
multi-stopEVA Air
17h 00mKIX-SEA
6/4Tue
multi-stopEVA Air
16h 20mSEA-KIX
$1,613
5/8Wed
multi-stopDelta
27h 08mKIX-SEA
6/4Tue
multi-stopDelta
28h 25mSEA-KIX
$10,616

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Flights to Seattle

Destination:

Seattle (SEA)United States

Return flight deals:

Seattle - Osaka

Cabin classes: