SEA - KIX

$422 Find Cheap Flights from Seattle to Osaka Kansai Intl - Compare and Save

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Everything you should know

Cheapest round-trip
$751
Typical prices: $765-$1,168
Multiple Airlines
Thu 3/1Mon 3/12
SEA - KIX • 2 stops
Cheapest one-way
$422
Typical prices: $392-$586
Cathay Pacific
Sun 11/25
SEA - KIX • 1 stop
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
3 weeks
in advance
Our data shows that travelers who book at least 3 weeks in advance save around 43% compared to booking last minute.
Insights
Insights
When to travel
February
Cheapest • 30% price drop
December
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Honolulu (HNL)
Cheapest • Avg $495 (round-trip)
Tokyo Haneda (HND)
Shortest trip • 13h 45m (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

Mon, Mar 1 - Fri, Mar 12
Multiple Airlines Logo
10:10 am - 8:20 pmSEA  Seattle/Tacoma Intl-KIX Osaka Kansai Intl
17h 10m2 stops Vancouver Intl Sapporo Chitose
Multiple Airlines Logo
3:30 pm - 2:35 pmKIX  Osaka Kansai Intl-SEA Seattle/Tacoma Intl
16h 05m2 stops Sapporo Chitose Vancouver Intl
$751Multiple Airlines
Wed, Mar 3 - Wed, Mar 10
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 - 9:30 amKIX  Osaka Kansai Intl-SEA Seattle/Tacoma Intl
31h 05m1 stop Vancouver Intl
$757Air Canada
Sun, Feb 14 - Thu, Feb 25
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
$758Air Canada
Mon, Jan 11 - Mon, Feb 22
Multiple Airlines Logo
10:10 am - 8:25 pmSEA  Seattle/Tacoma Intl-KIX Osaka Kansai Intl
17h 15m2 stops Vancouver Intl Sapporo Chitose
Multiple Airlines Logo
7:25 pm - 9:57 pmKIX  Osaka Kansai Intl-SEA Seattle/Tacoma Intl
19h 32m1 stop Vancouver Intl
$767Multiple Airlines
Tue, Feb 9 - Tue, Feb 16
ANA Logo
7:00 am - 4:45 pmSEA  Seattle/Tacoma Intl-KIX Osaka Kansai Intl
16h 45m1 stop San Francisco
ANA Logo
6:45 am - 1:20 pmKIX  Osaka Kansai Intl-SEA Seattle/Tacoma Intl
23h 35m1 stop Tokyo Haneda
$796ANA
Wed, Nov 25 - Fri, Dec 4
ANA Logo
7:00 am - 4:45 pmSEA  Seattle/Tacoma Intl-KIX Osaka Kansai Intl
16h 45m1 stop San Francisco
ANA Logo
6:45 am - 1:20 pmKIX  Osaka Kansai Intl-SEA Seattle/Tacoma Intl
23h 35m1 stop Tokyo Haneda
$796ANA
Sat, Feb 13 - Thu, Feb 25
Asiana Airlines Logo
3:15 pm - 5:40 pmSEA  Seattle/Tacoma Intl-KIX Osaka Kansai Intl
33h 25m1 stop Vancouver Intl
Asiana Airlines Logo
7:25 pm - 6:22 pmKIX  Osaka Kansai Intl-SEA Seattle/Tacoma Intl
15h 57m1 stop Vancouver Intl
$809Asiana Airlines
Sun, Feb 14 - Thu, Feb 25
Asiana Airlines Logo
8:40 am - 5:40 pmSEA  Seattle/Tacoma Intl-KIX Osaka Kansai Intl
16h 00m1 stop Vancouver Intl
Asiana Airlines Logo
7:25 pm - 9:57 pmKIX  Osaka Kansai Intl-SEA Seattle/Tacoma Intl
19h 32m1 stop Vancouver Intl
$809Asiana Airlines
Sun, Apr 11 - Sat, Apr 24
China Airlines Logo
1:15 am - 12:00 pmSEA  Seattle/Tacoma Intl-KIX Osaka Kansai Intl
18h 45m1 stop Taipei City Taiwan Taoyuan Intl
China Airlines Logo
2:00 pm - 7:15 pmKIX  Osaka Kansai Intl-SEA Seattle/Tacoma Intl
21h 15m1 stop Taipei City Taiwan Taoyuan Intl
$1,103China Airlines
Sat, Apr 10 - Sat, Apr 24
China Airlines Logo
1:15 am - 12:50 pmSEA  Seattle/Tacoma Intl-KIX Osaka Kansai Intl
19h 35m1 stop Taipei City Taiwan Taoyuan Intl
China Airlines Logo
7:05 pm - 7:15 pmKIX  Osaka Kansai Intl-SEA Seattle/Tacoma Intl
16h 10m1 stop Taipei City Taiwan Taoyuan Intl
$1,103China 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 with more confidence.

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

Based on deals KAYAK users found in the last 12 months, Monday is the cheapest day of the week to fly from Seattle to Osaka Kansai Intl Airport. It’s 12% cheaper than the average day, while Thursday is the most expensive, with prices 24% higher.

What’s 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 $671 round-trip.
•December ($1,374) and July ($1,313) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 104% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

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

Flights from Seattle to Osaka Kansai Intl Airport are cheapest 3 weeks before departure. Booking in this window typically costs about 43% 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

$422
Beat the crowds with an average 39% drop in travelers.
The most popular month to fly with an average 39% increase in travelers.
One-way 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 answers about this route, including flight times, airports, airlines and booking tips.

  • 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.

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

    A nonstop flight from Seattle to Osaka Kansai Intl Airport takes 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 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 $765 to $1,168, with an average of $957 over the past 12 months. Anything below $765 counts as a good deal.

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

    Last-minute fares on this route (booked within two weeks of departure) run 29% above the $957 route average. Book 3 weeks before departure for the lowest fares.

  • 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 higher than usual. Average one-way flight prices are about $543, which is 8% above the typical average for this route.

  • 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 averaging $36 for economy cars. Top options include:

    • Yesaway
    • IX Rental
    • HM Rent a Car
    • CG Car Rental
    • KuMa Rental Car

  • 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).

  • 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) - 41% of one-stop connections
    • Incheon Intl (ICN) - 18% of one-stop connections
    • Taipei City Taiwan Taoyuan Intl (TPE) - 15% of one-stop connections
    • Vancouver Intl (YVR) - 13% of one-stop connections

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

    Yes. Flexible dates can save you up to 29% on flights from Seattle to Osaka Kansai Intl Airport. Monday is the cheapest departure day at $843 round-trip on average, while Thursday is the most expensive at $1,187, a difference of $344.

    KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • 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 45m, compared with 14h 10m via Vancouver Intl (YVR) and 16h 25m 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 popular places can I visit in Osaka Kansai Intl Airport?

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

  • Which airlines include bags at no extra cost on Seattle to Osaka Kansai Intl Airport flights?

    Here are some options for this route, based on selected ticket types and cabin classes:

    • Alaska Airlines: a cabin bag and a checked bag in Economy Class

    Bag allowance can vary by ticket type, cabin class, route and airline, so always check the fare details before booking.

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 are flexible, aim for a Monday departure and avoid flying on Thursday. On this route, Monday flights average $843, about $344 less than Thursday fares (29% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 3 weeks before you fly. On this route, that window historically saves about 43% 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 $671 round-trip in that month - typically $703 less than the most expensive month, which is December (based on the last 12 months).

More options for your flight from Seattle to Kansai Intl

Complete your trip to Osaka with a hotel stay or car rental

Car rentals in Osaka
Hotels in Osaka
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