SEA - KIX

$386 Find Cheap Flights from Seattle to Osaka Kansai Intl - Compare and Save

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1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$767
Typical prices: $719-$1,149
STARLUX Airlines
Thu 2/22Thu 3/1
SEA - KIX • 1 stop
Cheapest one-way
$386
Typical prices: $376-$572
Multiple Airlines
Fri 12/7
SEA - KIX • 2 stops
Nonstop flights
Not available
There are currently no direct flights between Seattle and Osaka Kansai Intl Airport. You'll need to take a connecting flight to reach the destination.
Insights
Insights
When to book
13 weeks
in advance
Our data shows that travelers who book at least 13 weeks in advance save around 29% compared to booking last minute.
Insights
Insights
When to travel
February
Cheapest • 22% price drop
March
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Manila Ninoy Aquino Intl (MNL)
Cheapest • Avg $660 (round-trip)
Tokyo Haneda (HND)
Shortest trip • 13h 43m (one-way)
Insights
Insights
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We hope you love your trip to Osaka Kansai Intl Airport!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Seattle to Kansai Intl (SEA-KIX)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Seattle to Kansai Intl

Thu, Feb 18 - Sun, Feb 28
STARLUX Airlines Logo
11:45 pm - 12:50 pmSEA  Seattle/Tacoma Intl-KIX Osaka Kansai Intl
20h 05m1 stop Taipei City Taiwan Taoyuan Intl
STARLUX Airlines Logo
12:20 pm - 3:05 pmKIX  Osaka Kansai Intl-SEA Seattle/Tacoma Intl
19h 45m1 stop Taipei City Taiwan Taoyuan Intl
$767STARLUX Airlines
Wed, Jan 13 - Mon, May 10
STARLUX Airlines Logo
11:45 pm - 12:50 pmSEA  Seattle/Tacoma Intl-KIX Osaka Kansai Intl
20h 05m1 stop Taipei City Taiwan Taoyuan Intl
STARLUX Airlines Logo
1:25 pm - 4:10 pmKIX  Osaka Kansai Intl-SEA Seattle/Tacoma Intl
18h 45m1 stop Taipei City Taiwan Taoyuan Intl
$767STARLUX Airlines
Mon, Feb 22 - Mon, Mar 1
STARLUX Airlines Logo
11:45 pm - 11:10 amSEA  Seattle/Tacoma Intl-KIX Osaka Kansai Intl
18h 25m1 stop Taipei City Taiwan Taoyuan Intl
STARLUX Airlines Logo
12:20 pm - 3:05 pmKIX  Osaka Kansai Intl-SEA Seattle/Tacoma Intl
19h 45m1 stop Taipei City Taiwan Taoyuan Intl
$767STARLUX Airlines
Tue, Feb 9 - Wed, Feb 24
Air Canada Logo
8:40 am - 5:40 pmSEA  Seattle/Tacoma Intl-KIX Osaka Kansai Intl
16h 00m1 stop Vancouver Intl
Air Canada Logo
7:25 pm - 6:22 pmKIX  Osaka Kansai Intl-SEA Seattle/Tacoma Intl
15h 57m1 stop Vancouver Intl
$773Air Canada
Tue, Feb 16 - Wed, Feb 24
Air Canada Logo
8:40 am - 5:40 pmSEA  Seattle/Tacoma Intl-KIX Osaka Kansai Intl
16h 00m1 stop Vancouver Intl
Air Canada Logo
7:25 pm - 2:37 pmKIX  Osaka Kansai Intl-SEA Seattle/Tacoma Intl
12h 12m1 stop Vancouver Intl
$773Air Canada
Wed, Feb 10 - Wed, Feb 17
Air Canada Logo
10:10 am - 5:40 pmSEA  Seattle/Tacoma Intl-KIX Osaka Kansai Intl
14h 30m1 stop Vancouver Intl
Air Canada Logo
7:25 pm - 9:57 pmKIX  Osaka Kansai Intl-SEA Seattle/Tacoma Intl
19h 32m1 stop Vancouver Intl
$773Air Canada
Wed, Nov 25 - Wed, Dec 9
ANA Logo
7:00 am - 4:45 pmSEA  Seattle/Tacoma Intl-KIX Osaka Kansai Intl
16h 45m1 stop San Francisco
ANA Logo
3:20 pm - 1:20 pmKIX  Osaka Kansai Intl-SEA Seattle/Tacoma Intl
15h 00m1 stop Tokyo Haneda
$850ANA
Mon, Jan 18 - Fri, Jan 29
ANA Logo
3:45 pm - 10:20 pmSEA  Seattle/Tacoma Intl-KIX Osaka Kansai Intl
13h 35m1 stop Tokyo Haneda
ANA Logo
3:20 pm - 1:20 pmKIX  Osaka Kansai Intl-SEA Seattle/Tacoma Intl
15h 00m1 stop Tokyo Haneda
$852ANA
Mon, Nov 23 - Wed, Dec 9
Asiana Airlines Logo
12:10 am - 6:30 pmSEA  Seattle/Tacoma Intl-KIX Osaka Kansai Intl
25h 20m1 stop Incheon Intl
Asiana Airlines Logo
7:45 pm - 1:55 pmKIX  Osaka Kansai Intl-SEA Seattle/Tacoma Intl
35h 10m1 stop Incheon Intl
$982Asiana Airlines
Mon, Oct 5 - Thu, Oct 15
Asiana Airlines Logo
12:10 am - 9:00 amSEA  Seattle/Tacoma Intl-KIX Osaka Kansai Intl
16h 50m1 stop Incheon Intl
Asiana Airlines Logo
10:30 am - 3:15 pmKIX  Osaka Kansai Intl-SEA Seattle/Tacoma Intl
20h 45m1 stop Incheon Intl
$983Asiana Airlines
Booking Insights

Price, demand and travel trends for Seattle to Osaka Kansai Intl Airport flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights from Seattle to Osaka Kansai Intl Airport with more confidence.

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

Round-trip flights from Seattle to Osaka Kansai Intl Airport start at $767. Prices are typical for this route right now, with typical round-trip fares ranging from $719 to $1,149. The lowest price found in the past 5 days was $767 on STARLUX Airlines.

What's the cheapest day of the week to fly from Seattle to Osaka Kansai Intl Airport?

Saturday is the cheapest day of the week to fly from Seattle to Osaka Kansai Intl Airport, it is 7% cheaper than the average day. Thursday is the most expensive day with flight prices 30% higher than average. Based on deals found by KAYAK users in the last 12 months.

What is the cheapest month to fly from Seattle to Osaka Kansai Intl Airport?

  • February is the cheapest month to fly from Seattle to Osaka Kansai Intl Airport at $668 round-trip.
  • July ($1,313) and December ($1,255) are the most expensive months.
  • The price difference between flying in the cheapest and most expensive months is 96% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are prices from Seattle to Osaka Kansai Intl Airport the cheapest?

Flights from Seattle to Osaka Kansai Intl Airport are cheapest 13 weeks before departure. Booking in this window typically costs about 29% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

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Key details for Seattle to Osaka Kansai Intl Airport flights

Low season

August

Cheapest flight

$386
Most popular time to fly and prices are also 5% lower on average.
Flight from Seattle to Osaka Kansai Intl Airport

When to book flights from Seattle to Kansai Intl

Are your dates flexible? Find out the best times to travel from Seattle to Kansai Intl based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Your Seattle to Osaka Kansai Intl Airport flight questions, answered

Find helpful route details based on KAYAK data, including flight times, airports, airlines and booking questions.

  • Which airports can I use when flying from Seattle to Osaka Kansai Intl Airport?

    Flights from Seattle to Osaka Kansai Intl Airport usually depart from Seattle/Tacoma Intl (SEA) and arrive at Osaka Kansai Intl (KIX).

  • What cabin classes can I book on flights from Seattle to Osaka Kansai Intl Airport?

    Four cabin classes are available on flights from Seattle to Osaka Kansai Intl Airport:

    • Economy Class
    • Premium Economy Class
    • Business Class
    • First Class

    Prices vary by airline.

  • Which airports do connecting flights from Seattle to Osaka Kansai Intl Airport pass through?

    One-stop flights from Seattle to Osaka Kansai Intl Airport most commonly connect through:

    • Tokyo Haneda (HND) - 45% of one-stop connections
    • Incheon Intl (ICN) - 23% of one-stop connections
    • Vancouver Intl (YVR) - 12% of one-stop connections
    • Taipei City Taiwan Taoyuan Intl (TPE) - 8% of one-stop connections

    Tokyo Haneda (HND) handles the largest share of one-stop connections on this route.

  • Can I save money by using flexible dates for flights from Seattle to Osaka Kansai Intl Airport?

    On the Seattle to Osaka Kansai Intl Airport route, being flexible with your departure day can save you up to 29%. Saturday is the cheapest day at $802 round-trip on average, while Thursday is the most expensive at $1,119: a $317 difference. Cheaper weekend fares like these are typical of routes dominated by weekday business travel.

  • What popular places can I visit in Osaka Kansai Intl Airport?

    Some of the most popular sights in Osaka Kansai Intl Airport are Namba Train Station, Universal Studios Japan and Dotonbori Glico Man Sign. These are among the most viewed places in Osaka Kansai Intl Airport on KAYAK.

  • How expensive are last-minute Seattle to Osaka Kansai Intl Airport flights?

    Last-minute fares on this route - booked within 2 weeks of departure - run 35% above the route average of $860. Book 13 weeks before departure for the lowest fares.

  • How long is a flight from Seattle to Osaka Kansai Intl Airport?

    A nonstop flight from Seattle to Osaka Kansai Intl Airport takes 0h 00m, covering 5,024 miles.

  • Do I need a passport to fly from Seattle to Osaka Kansai Intl Airport?

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • How are flight prices from Seattle to Osaka Kansai Intl Airport looking right now?

    One-way fares from Seattle to Osaka Kansai Intl Airport are currently lower than usual. Average one-way flight prices are about $451, which is 8% below the typical average for this route.

  • How much time can I save by choosing a different layover airport from Seattle to Osaka Kansai Intl Airport?

    Flying via Tokyo Haneda (HND) gives the shortest average 1-stop total travel time at 13h 43m, compared with 14h 26m via Vancouver Intl (YVR) and 16h 36m via San Francisco (SFO).

  • What is the time difference between Seattle and Osaka Kansai Intl Airport?

    Osaka Kansai Intl Airport is 16 hours ahead of Seattle (Japan Time vs Pacific Time). Plan for the time shift when scheduling connections or first-day activities.

  • What car rental options are available at Osaka Kansai Intl Airport (KIX)?

    Osaka Kansai Intl Airport (KIX) hosts 5 major car rental companies, with daily rates starting from around $11 for economy cars. Top options include:
    • Yesaway
    • CG Car Rental
    • KuMa Rental Car
    • IX Rental
    • HM Rent a Car

  • How much should I expect to pay for a Seattle to Osaka Kansai Intl Airport flight?

    Round-trip flights from Seattle to Osaka Kansai Intl Airport range from $719 to $1,149, with an average of $860 over the past 12 months. Anything below $719 counts as a good deal.

Your guide to booking Seattle to Osaka Kansai Intl Airport flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates can be flexible, aim for a Saturday departure instead of Thursday. On this route, Saturday flights average $802 - about $317 less than Thursday (28% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 13 weeks before you fly. On this route, that window historically saves about 29% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your Seattle to Osaka Kansai Intl Airport trip for February. Fares historically average $668 round-trip in that month - typically $645 less than the most expensive month, which is July (based on the last 12 months).

More options for your flight from Seattle to Kansai Intl

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