OSA - SEA

$372 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 1/21. 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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Everything you should know

Cheapest round-trip
$619
Multiple Airlines
Tue 1/27Tue 2/3
KIX - SEA • 1 stop
Cheapest one-way
$413
Typical prices: $1,307-$1,380
Multiple Airlines
Wed 1/21
KIX - SEA • 3 stops
Top airlines
Delta
Cheapest • from $683 (round-trip)
STARLUX Airlines
Best reviews • 8.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
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We hope you love your trip to Seattle!
Flight Deals
Booking Insights
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

Tue, Jan 27 - Tue, Feb 3
Multiple Airlines Logo
8:45 pm - 10:17 pm
KIX
-
SEA
18h 32m1 stop
Multiple Airlines Logo
7:00 am - 6:45 pm
SEA
-
KIX
18h 45m1 stop
$619Multiple Airlines
Thu, Jan 22 - Wed, Feb 4
Multiple Airlines Logo
8:45 pm - 10:17 pm
KIX
-
SEA
18h 32m1 stop
Multiple Airlines Logo
7:00 am - 6:45 pm
SEA
-
KIX
18h 45m1 stop
$620Multiple Airlines
Thu, Jan 22 - Wed, Feb 4
Multiple Airlines Logo
3:00 pm - 8:07 pm
KIX
-
SEA
22h 07m2 stops
Multiple Airlines Logo
7:00 am - 6:45 pm
SEA
-
KIX
18h 45m1 stop
$674Multiple Airlines
Thu, Jan 29 - Thu, Feb 5
Delta Logo
9:00 am - 1:20 pm
KIX
-
SEA
21h 20m1 stop
Delta Logo
11:25 am - 8:45 pm
SEA
-
KIX
16h 20m1 stop
$683Delta
Tue, Mar 3 - Wed, Mar 18
Air Canada Logo
7:25 pm - 7:16 pm
KIX
-
SEA
16h 51m1 stop
Air Canada Logo
10:05 am - 5:40 pm
SEA
-
KIX
15h 35m1 stop
$697Air Canada
Tue, Jan 27 - Tue, Feb 3
Multiple Airlines Logo
3:00 pm - 10:17 pm
KIX
-
SEA
24h 17m2 stops
Multiple Airlines Logo
5:45 pm - 6:45 pm
SEA
-
KIX
32h 00m1 stop
$707Multiple Airlines
Fri, Jan 23 - Tue, Jan 27
American Airlines Logo
1:40 pm - 7:22 pm
ITM
-
SEA
22h 42m2 stops
American Airlines Logo
6:38 pm - 8:40 am
SEA
-
ITM
21h 02m2 stops
$809American Airlines
Fri, Jan 23 - Tue, Jan 27
American Airlines Logo
4:30 pm - 11:59 pm
ITM
-
SEA
24h 29m2 stops
American Airlines Logo
6:38 pm - 8:40 am
SEA
-
ITM
21h 02m2 stops
$812American Airlines
Wed, Jan 21 - Fri, Jan 23
Asiana Airlines Logo
9:00 am - 1:55 pm
KIX
-
SEA
21h 55m1 stop
Asiana Airlines Logo
12:10 am - 8:55 pm
SEA
-
KIX
27h 45m1 stop
$847Asiana Airlines
Thu, Jan 29 - Thu, Feb 5
Air Canada Logo
2:05 pm - 9:31 am
ITM
-
SEA
36h 26m2 stops
Air Canada Logo
5:50 am - 6:55 pm
SEA
-
ITM
20h 05m2 stops
$851Air Canada
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.

How much is a round-trip flight from Osaka to Seattle?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Osaka to Seattle departing in January.

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$413
Best time to beat the crowds with an average 43% drop in price.
Most popular time to fly and prices are also 8% 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 $372 for a one-way ticket and $620 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, STARLUX Airlines or EVA Air?

    The two airlines most popular with KAYAK users for flights from Osaka to Seattle are STARLUX Airlines and EVA Air. With an average price for the route of $823 and an overall rating of 8.9, STARLUX Airlines is the most popular choice. EVA Air is also a great choice for the route, with an average price of $870 and an overall rating of 8.5.

  • 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 3 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.
8.9
STARLUX AirlinesOverall score based on 243 reviews
8.7Food
9.2Crew
8.9Comfort
8.9Boarding
8.9Entertainment
Airline reviews

Starlux was great service and awesome food and drinks👍🏼 will take starlux again for my next vacation👍🏼

10.0 ExcellentTony, Dec 2025
CRK - TPE
Read more STARLUX Airlines reviews

Starlux was great service and awesome food and drinks👍🏼 will take starlux again for my next vacation👍🏼

Loved the boarding process. All airlines should board from the back to the front. Very efficient. Food was excellent, crew were great, seats were spacious and comfortable and the entertainment screen was the best I have seen.

Flight cancelled due to inclement weather yet rival airline EVA Air with the same route departed 2 hours later and landed safely while our flight was cancelled and rescheduled for 36 hours later.

The staff in air and on land went above and beyond! I would definately recommend and we will fly Starlux again!

I need Starlux to respond to my complaint and issues for my flight.

Someon vomit during boarding. My seat was next to the vomit. I asked crew member to switch seat, but they said it was a full flight. I had my baby with me. My baby got sick after the flight. He was in the hospital for 2 days.

The airplane so clean and they have a nice crew

it they come out with resent movie and good food

The crew could have been kinder and less pushy. The premium economy seats don't have enough cushion. The seats are to hard and the flight became painful and uncomfortable after an hour of flying.

Aircraft is new and toilets are spacious, but toilets are quite filthy. They should clean more often. They have a long list of drink offer but are actually not available during meal. They said they’ll come back with them and you don’t get them until after dinner which means you eat your meals without any drinks if you were to get something that they don’t have on the cart. They are strict about removing headphones during take off and landing which is new to us since the movies did not get turned off. Instead, we we’re forced to watch their commercials during that time. We probably would fly with them again but not with the cost we spent. For the record, I work in tourism and travel a lot for inspections.

Eva airlines has very goin service, despite being low cost. Meals and fin, not amazing, restrooms always clean and staff polite and helpful

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.

Staff was rude and loud. No respect for customers unlike the Starflyer Osaka to Haneda sector where service was outstanding. What a stark difference. Maybe United should learn from ANA how to do customer service.

The meals were sufficient and tasty considering it was air travel food. Water coffee and juices offered each time a meal came by and water distributed between meals. It was good service in my opinion. Plenty of movies to enjoy. May not be the one you want but plenty of older movies and plenty of current ones as well. I enjoyed the trip.

The crew was incredible. The pilots were so fantastic. The smoothest landing I’ve ever experienced.

The flight attendants are always fantastic. My only issue – and it was on my Haneda to Vancouver flight – same as my Vancouver to Osaka flight – I had a confirmed special meal and they had no record of it on board. I tried to confirm it with the gate agent in Fukuoka, where I initiated the day, because of the mess up a month ago, and she said that they can't confirm special meals. I'd have to see when I got on board.

Great transfer of luggage from my flight with Osaka to Tokyo then Tokyo to final destination in Chicago

Great experienced staff and very pleasant compared to some other international airlines

we were in premium economy, but we both got middle seats and had to sit separately. i could have avoided this by trying to obtain seats sooner, but i tried 3 times and gave up. ANA's technology is not friendly for newcomers. no, check that---I think it is nigh impossible. not sure we are coming back. ana can do better to provide a front end that's friendly to users in both US and Japan.

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.

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.

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

Information on your arrival and departure airports