OSA - SEA

$375 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 11/19. 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 Seattle

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Osaka to Seattle, 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 Osaka to Seattle, as well as popular online travel agencies
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Flight Deals

Cheap Flights 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 for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Osaka to Seattle

Sat, Mar 14 - Sat, Mar 21
Multiple Airlines Logo
3:40 pm - 2:30 pmKIX-SEA
14h 50m1 stop
Multiple Airlines Logo
2:40 pm - 10:45 pmSEA-KIX
16h 05m1 stop
$709Multiple Airlines
Find Deal
Fri, Dec 26 - Sun, Jan 4
Multiple Airlines Logo
11:50 am - 1:45 pmKIX-SEA
18h 55m1 stop
Multiple Airlines Logo
1:40 pm - 10:45 pmSEA-KIX
16h 05m1 stop
$710Multiple Airlines
Find Deal
Fri, Nov 28 - Fri, Dec 5
Multiple Airlines Logo
2:35 pm - 8:00 amKIX-SEA
34h 25m1 stop
Multiple Airlines Logo
3:40 pm - 10:20 pmSEA-KIX
13h 40m1 stop
$745Multiple Airlines
Find Deal
Tue, Nov 25 - Tue, Dec 2
Philippine Airlines Logo
10:15 am - 6:40 pmKIX-SEA
25h 25m1 stop
Philippine Airlines Logo
9:30 pm - 7:35 pmSEA-KIX
29h 05m1 stop
$764Philippine Airlines
Find Deal
Sat, Mar 14 - Fri, Mar 20
STARLUX Airlines Logo
12:20 pm - 4:05 pmKIX-SEA
19h 45m1 stop
STARLUX Airlines Logo
12:45 am - 12:50 pmSEA-KIX
20h 05m1 stop
$812STARLUX Airlines
Find Deal
Thu, Nov 13 - Mon, Nov 17
STARLUX Airlines Logo
12:20 pm - 3:05 pmKIX-SEA
19h 45m1 stop
STARLUX Airlines Logo
11:45 pm - 11:10 amSEA-KIX
18h 25m1 stop
$847STARLUX Airlines
Find Deal
Tue, Nov 25 - Mon, Dec 1
EVA Air Logo
6:10 pm - 7:02 amKIX-SEA
29h 52m2 stops
EVA Air Logo
12:10 am - 9:55 amSEA-KIX
16h 45m1 stop
$937EVA Air
Find Deal
Sat, Nov 29 - Fri, Dec 5
EVA Air Logo
10:55 am - 7:02 amKIX-SEA
37h 07m2 stops
EVA Air Logo
12:10 am - 11:55 amSEA-KIX
18h 45m1 stop
$967EVA Air
Find Deal
Tue, Nov 25 - Tue, Dec 2
ANA Logo
3:00 pm - 1:20 pmITM-SEA
15h 20m1 stop
ANA Logo
3:40 pm - 7:30 amSEA-ITM
22h 50m1 stop
$1,525ANA
Find Deal
Sat, Nov 29 - Sat, Dec 6
ANA Logo
3:00 pm - 7:16 pmITM-SEA
21h 16m2 stops
ANA Logo
10:05 am - 7:30 amSEA-ITM
28h 25m2 stops
$1,568ANA
Find Deal

Everything you should know

Top airlines
Philippine Airlines
Cheapest • from $764 (round-trip)
EVA Air
Best reviews • 8.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Cheapest round-trip
$709
Multiple Airlines
Sat 3/14Sat 3/21
KIX - SEA • 1 stop
Cheapest one-way
$375
Typical prices: $537-$607
Multiple Airlines
Wed 11/19
KIX - SEA • 2 stops
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Seattle!
Booking Insights

KAYAK's insights & trends for Osaka to Seattle flights

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 round-trip flights from Osaka to Seattle clicked on KAYAK for each day over the last 12 months.

For Osaka to Seattle, Thursday is the cheapest day to fly on average and Sunday is the most expensive. Flying from Seattle back to Osaka, the best deals are generally found on Thursday, with Sunday being the most expensive.

Good to know

Low seasonMay
Cheapest flight$375
Best time to beat the crowds with an average 45% drop in price.
Most popular time to fly and prices are also 1% 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 $375 for a one-way ticket and $709 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 is the best airline for flights from Osaka to Seattle, ANA or EVA Air?

    The two airlines most popular with KAYAK users for flights from Osaka to Seattle are ANA and EVA Air. With an average price for the route of $1,078 and an overall rating of 8.4, ANA is the most popular choice. EVA Air is also a great choice for the route, with an average price of $956 and an overall rating of 8.4.

  • 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.

Reviews of the top airlines flying 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.
8.4
EVA AirOverall score based on 1265 reviews
8.3Comfort
8.0Entertainment
8.1Food
8.6Crew
8.4Boarding
Airline reviews

Its fantastic!!I like the food the serve in EVA air😊

10.0 ExcellentMary Grace, Oct 2025TPE - SEA
Read more EVA Air reviews

Its fantastic!!I like the food the serve in EVA air😊

everything was so good! Especially Food. It was the best I've ever had! However,I requested to add mileage point to Star alliance group ANA; it hasn't been added yet.... 😞

Flight was canceled was only given only a 8 hour lead time. Had to fight to be put on another airline (United Airlines) that was leaving earlier then the one EVA and rescheduled.

The EVA air staff at Narita did a terrible job with signage and communication. Despite getting to the airport hours before, they had me queue in line and did not communicate that passengers for Kaohsiung need to step out of line to go to a different line. If you put the flight number at the front of the line, people will think that’s their line. If your staff walk silently down the line with a sign of the flight number, how are we supposed to know you want us to follow unless you speak or write that? I even asked the staff with this sign when we could check our bags and they assumed I was on the later flight to Taipei. Later, Wl only 30 minutes remaining I called for help, and the staff looked at me like I was in the wrong. I had to rush through security and customs and had no time to eat or buy a gift. I’m deeply disappointed in the way they handled it, and it caused unnecessary stress on my vacation.

Awful had to ask for a supervisor to sit with my flight companion even t booked the tickets together weeks before

Very good service and food. Crew was professional and considerate. Cabin and restrooms were kept clean

EVA airlines was excellent: on time or early, safe, courteous crew. Highly recommended.

EVA! What is going on with your food!?!? Pre pandemic I used to go to Taiwan at least twice a year and always flew EVA — the food was consistently tasty for airplane food. Post pandemic, it’s not great at all. Step it up!

Flight Attendants could have been nicer and food portions could be bigger.

I have never heard of EVA air before but I am so happy my wife and I were able to flight on their planes twice. Everything on these flights just felt better than their competitors. As someone with longer legs any bit of extra leg spaces is appreciated. The different options for food and drinks were also a plus. They were extra careful to make sure my wife's eating restrictions were taken care for. They had a before take off and landing announcements on the built in tablets for each seat and it gave out information that was very helpful. Such as what and how to declare your items in the specific country you landed in, any odd items that may be illegal to bring it (and even the reasoning why) and any other information you might need to make your post flight experience better. Oh and the seats were more comfortable, had more ability to lean and the headrest was much better for flight sleeping. The only downside was there were "forced" ads on the tablet at take off for maybe 5-10 minutes but honestly, this flight was the cheapest option and had all the benefits listed above that is such an easy trade off. Im keeping an eye out for EVA air going forward.

Checking in via an alliance partner, even a foreign one should get TSA Precheck printed on your boarding pass. The paper copy issued by ANA didn’t show it. I couldn’t get my digital copy due to some technical issue arising because I checked in with ANA. The kiosks at SFO similarly threw an error. The only way I could have gotten a new copy of my boarding pass was from the UA counter and lines were nearly as long as TSA so I bit the bullet and went through the regular TSA line. If UA wants my business, they need to improve that process.

Flight was diverted to Osaka due to engine problems then arrived at a different airport 6 hours late. We were so tired. ANA did the best they could.

The boarding process, food is one of the best, seats are roomier with better leg room.. the attendants are nice and accommodating…

Great as can be expected with a 10 hour flight over the Pacific. Great movie selection of new releases that hadn’t hit streaming yet. And despite the bad rep, I actually like the airplane good.

One of the best business class seats I’ve had. The lie flat seats made it comfortable to endure a 12 hour flight. Service was excellent and food was great.

Almost 6 hours of delay with over 12 gate changes. Flight was supposed to depart around 6 and instead depart after 12am. No accommodations were offered than some snacks closer to midnight when the crew was planning to throw away some snacks.

Flight was on an ANA flight not air Japan. They did most excellent. Again the flight had excellent legroom for someone that is over 6 foot tall and the staff was very very nice. The only issue you may run into is that the person sitting next to you, may not be able to speak the same language as you.

Overall it was good. Making changes to the reservation on ANA’s website was little challenging. Would like to see those features improved in the future.

Purchased WiFi was slow to non functional. Staff was not personable or friendly. Seats were cramped. Boarding took long but I expected that.

The crew was excellent. The flight was delayed for 20 to 25 minutes. We did arrive a bit later than expected. The AC could have been better.

Everything you need to know for your flight from Osaka to Seattle

Information on your arrival and departure airports

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