OSA - SEA

$473 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 10/19. 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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41,299,237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$1,041
Delta
Mon 10/26Thu 1/14
KIX - SEA • 1 stop
Cheapest one-way
$473
Typical prices: $484-$631
Hainan Airlines
Mon 10/19
KIX - SEA • 1 stop
Top airlines
Delta
Cheapest • from $1,041 (round-trip)
STARLUX Airlines
Best reviews • 8.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Osaka and Seattle. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Vancouver (YVR)
Cheapest • Avg $805 (round-trip)
Vancouver (YVR)
Shortest trip • 12h 16m (one-way)
Insights
Insights
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Insights
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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!
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

Mon, Oct 26 - Thu, Jan 14
Delta Logo
6:10 pm - 12:51 pm
KIX
-
SEA
34h 41m
1 stop
Delta Logo
1:00 pm - 10:40 pm
SEA
-
KIX
16h 40m
1 stop
$1,041Delta
Mon, Oct 26 - Thu, Jan 14
Multiple Airlines Logo
7:35 am - 7:08 am
KIX
-
SEA
39h 33m
2 stops
Multiple Airlines Logo
3:45 pm - 9:50 pm
SEA
-
KIX
13h 05m
1 stop
$1,055Multiple Airlines
Thu, Sep 24 - Sat, Oct 17
Air Canada Logo
6:00 pm - 10:42 pm
KIX
-
SEA
20h 42m
1 stop
Air Canada Logo
7:20 pm - 4:25 pm
SEA
-
KIX
29h 05m
1 stop
$1,074Air Canada
Thu, Sep 24 - Sat, Oct 17
Air Canada Logo
6:00 pm - 2:22 pm
KIX
-
SEA
12h 22m
1 stop
Air Canada Logo
7:20 pm - 4:25 pm
SEA
-
KIX
29h 05m
1 stop
$1,075Air Canada
Tue, Jun 23 - Wed, Sep 16
Air Canada Logo
6:00 pm - 6:32 pm
KIX
-
SEA
16h 32m
1 stop
Air Canada Logo
5:40 am - 4:25 pm
SEA
-
KIX
18h 45m
1 stop
$1,076Air Canada
Mon, Jul 13 - Mon, Jul 20
Air Canada Logo
6:00 pm - 10:42 pm
KIX
-
SEA
20h 42m
1 stop
Air Canada Logo
5:45 am - 4:25 pm
SEA
-
KIX
18h 40m
1 stop
$1,077Air Canada
Tue, Aug 25 - Wed, Sep 9
Air Canada Logo
6:00 pm - 10:07 am
KIX
-
SEA
32h 07m
1 stop
Air Canada Logo
10:30 am - 4:25 pm
SEA
-
KIX
13h 55m
1 stop
$1,079Air Canada
Tue, Jun 30 - Tue, Jul 7
Air Canada Logo
6:00 pm - 6:32 pm
KIX
-
SEA
16h 32m
1 stop
Air Canada Logo
3:00 pm - 4:25 pm
SEA
-
KIX
33h 25m
1 stop
$1,080Air Canada
Tue, Oct 27 - Tue, Jan 19
Multiple Airlines Logo
8:30 pm - 12:56 pm
KIX
-
SEA
32h 26m
2 stops
Multiple Airlines Logo
3:45 pm - 9:50 pm
SEA
-
KIX
13h 05m
1 stop
$1,087Multiple Airlines
Thu, Jul 16 - Mon, Jul 27
Air Canada Logo
6:00 pm - 6:32 pm
KIX
-
SEA
16h 32m
1 stop
Air Canada Logo
10:45 am - 4:25 pm
SEA
-
KIX
13h 40m
1 stop
$1,088Air 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.

Which airlines provide the cheapest flights from Osaka to Seattle?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 5 days.

In the past 5 days, the cheapest round-trip tickets from Osaka to Seattle were found on Delta ($1,041) and Air Canada ($1,074).

Find deals

Good to know

Cheapest flight$473
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 5 days, the lowest price for a flight from Osaka to Seattle was $473 for a one-way ticket and $1,041 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 is the only airline alliance operating flights between Osaka and Seattle.

  • 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 airline 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.
8.9
STARLUX AirlinesOverall score based on 331 reviews
8.8Entertainment
9.1Crew
8.6Food
8.9Comfort
8.9Boarding
Airline reviews

It did not feel like a luxury airline. We had booked premium economy and opted for AVML meals. This was one of the worst meal in any of the flights and I’m a frequent flyer. No great snack options were available. Drink selection was limited to wine and beer. On a long flight, you need a variety of food which was unfortunately not available. The seats were just OK and the foot rest are not comfortable.. Airline staff for courteous Audio and video section is extremely limited

6.0 GoodKartika, May 2026
KIX - TPE
Read more STARLUX Airlines reviews

It did not feel like a luxury airline. We had booked premium economy and opted for AVML meals. This was one of the worst meal in any of the flights and I’m a frequent flyer. No great snack options were available. Drink selection was limited to wine and beer. On a long flight, you need a variety of food which was unfortunately not available. The seats were just OK and the foot rest are not comfortable.. Airline staff for courteous Audio and video section is extremely limited

Hostesses were very nice I am disappointed that I paid extra 900$for premium economy which wasn't much upgraded from regular economy, I have wasted my money on this trip 😫

The food was amazing good especially for evonoply. The seats were comfy more then usually..crew was very nice and helpful.

love this boutique luxury airline. crew was nice and attentive. Lounge is too small , i think they should have more area for relaxing and lounging not just to sit and eat .. feels like a cafeteria more than a lounge. overall i enjoy it. food on the plane LAX to Teipei should inprove a bit. no flavor and more drinks pls

The overall experience with STARLUX was phenomenal. One of the best highlights for me was the smooth landing in LA(smoothest landing I’ve experienced ever) and the attentiveness of all your staff from check-in to boarding. Also, flight left and landed between airports on time. I highly recommend Starlux to my family and friends and I’m excited to fly with you again.

We are scare because almost missing the fligh from Seattle to San Diego ! Starlux not have enough members for servicing with wheel chairs? We almost left behind , so we must walking !?

I liked everything but I flew business class and StarLux booked another passenger and a one year old , in business class The child cried 80 percent of the flight, the flight was a long 13 hour flight. I’m 75 and I have 10 grand children, I love kids But with that said it still made it not and enjoyable flight. Ask your great flight attendance what they think of the situation, they had to deal with. Let me know what they said Respectfully, Al Eaddy

Everything is smooth. Very good. Except flight arrived SFO 30min late.

more new movies and the blockbuster movies that everyone likes

Great airline. Kind staff, before m, during, and after the flight. They Directed you the whole way. Even when I arrived at my transfer destination, flight attendants guided passengers on which direction to go. I would definitely fly STARLUX again.

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

Information on your arrival and departure airports

Seattle (SEA)