OSA - SEA

$472 Find Cheap Flights from Osaka to Seattle - Compare and Save

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1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$849
Typical prices: $796-$1,151
Multiple Airlines
Sat 12/1Sat 12/8
KIX - SEA • 1 stop
Cheapest one-way
$472
Typical prices: $522-$781
Multiple Airlines
Sun 12/9
KIX - SEA • 2 stops
Nonstop flights
Not available
There are currently no direct flights between Osaka and Seattle. You'll need to take a connecting flight to reach the destination.
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Top routes
KIX - SEA
Cheapest • 26% average savings
ITM - SEA
Most popular
Insights
Insights
When to travel
April
Cheapest • 16% price drop
April
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Taipei City Taiwan Taoyuan Intl (TPE)
Cheapest • Avg $935 (round-trip)
Tokyo Haneda (HND)
Shortest trip • 12h 50m (one-way)
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Flight Deals

Cheap Flights from Osaka to Seattle (OSA-SEA)

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

Recent round-trip flight deals from Osaka to Seattle

Tue, Dec 1 - Tue, Dec 8
Multiple Airlines Logo
7:15 am - 6:10 pmKIX  Osaka Kansai Intl-SEA Seattle/Tacoma Intl
27h 55m1 stop Taipei City Taiwan Taoyuan Intl
Multiple Airlines Logo
9:30 am - 8:55 amSEA  Seattle/Tacoma Intl-KIX Osaka Kansai Intl
30h 25m2 stops Honolulu Tokyo Haneda
$849Multiple Airlines
Tue, Nov 17 - Tue, Nov 24
Multiple Airlines Logo
9:20 pm - 6:45 pmKIX  Osaka Kansai Intl-SEA Seattle/Tacoma Intl
38h 25m1 stop Manila Ninoy Aquino Intl
Multiple Airlines Logo
1:59 pm - 6:45 pmSEA  Seattle/Tacoma Intl-KIX Osaka Kansai Intl
35h 46m1 stop Honolulu
$864Multiple Airlines
Tue, Jan 26 - Fri, Jan 29
Multiple Airlines Logo
9:20 pm - 6:45 pmKIX  Osaka Kansai Intl-SEA Seattle/Tacoma Intl
38h 25m1 stop Manila Ninoy Aquino Intl
Multiple Airlines Logo
7:00 am - 6:45 pmSEA  Seattle/Tacoma Intl-KIX Osaka Kansai Intl
18h 45m1 stop Honolulu
$901Multiple Airlines
Sun, Feb 7 - Sat, Feb 20
Multiple Airlines Logo
10:05 am - 6:45 pmKIX  Osaka Kansai Intl-SEA Seattle/Tacoma Intl
25h 40m1 stop Manila Ninoy Aquino Intl
Multiple Airlines Logo
7:00 am - 6:45 pmSEA  Seattle/Tacoma Intl-KIX Osaka Kansai Intl
18h 45m1 stop Honolulu
$911Multiple Airlines
Fri, Nov 13 - Fri, Nov 20
Multiple Airlines Logo
2:35 pm - 8:20 amKIX  Osaka Kansai Intl-SEA Seattle/Tacoma Intl
34h 45m1 stop Beijing Capital
Multiple Airlines Logo
6:30 pm - 6:45 pmSEA  Seattle/Tacoma Intl-KIX Osaka Kansai Intl
31h 15m1 stop Honolulu
$1,004Multiple Airlines
Tue, Jan 26 - Fri, Jan 29
Multiple Airlines Logo
3:00 pm - 6:43 pmKIX  Osaka Kansai Intl-SEA Seattle/Tacoma Intl
20h 43m2 stops Tokyo Narita San Francisco
Multiple Airlines Logo
3:45 pm - 9:50 pmSEA  Seattle/Tacoma Intl-KIX Osaka Kansai Intl
13h 05m1 stop Tokyo Haneda
$1,033Multiple Airlines
Sun, Feb 7 - Sat, Feb 20
Multiple Airlines Logo
7:50 am - 7:08 amKIX  Osaka Kansai Intl-SEA Seattle/Tacoma Intl
40h 18m2 stops Tokyo Narita Vancouver Intl
Multiple Airlines Logo
3:45 pm - 3:25 pmSEA  Seattle/Tacoma Intl-KIX Osaka Kansai Intl
30h 40m1 stop Tokyo Haneda
$1,034Multiple Airlines
Sun, Feb 7 - Sat, Feb 20
Multiple Airlines Logo
3:00 pm - 12:58 pmKIX  Osaka Kansai Intl-SEA Seattle/Tacoma Intl
38h 58m2 stops Tokyo Narita Vancouver Intl
Multiple Airlines Logo
3:45 pm - 3:25 pmSEA  Seattle/Tacoma Intl-KIX Osaka Kansai Intl
30h 40m1 stop Tokyo Haneda
$1,035Multiple Airlines
Sun, Feb 7 - Sat, Feb 20
Multiple Airlines Logo
7:50 am - 2:41 pmKIX  Osaka Kansai Intl-SEA Seattle/Tacoma Intl
23h 51m2 stops Tokyo Narita Vancouver Intl
Multiple Airlines Logo
3:45 pm - 3:25 pmSEA  Seattle/Tacoma Intl-KIX Osaka Kansai Intl
30h 40m1 stop Tokyo Haneda
$1,037Multiple Airlines
Mon, Feb 15 - Sun, Feb 21
Air Canada Logo
7:25 pm - 9:32 amKIX  Osaka Kansai Intl-SEA Seattle/Tacoma Intl
31h 07m1 stop Vancouver Intl
Air Canada Logo
10:10 am - 5:40 pmSEA  Seattle/Tacoma Intl-KIX Osaka Kansai Intl
14h 30m1 stop Vancouver Intl
$1,053Air Canada
Booking Insights

Price, demand and travel trends for Osaka to Seattle flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

What is the cheapest Osaka to Seattle flight route?

Osaka Kansai Intl Airport (KIX) to Seattle (SEA) is the cheapest Osaka to Seattle route, averaging $924 round-trip. Other Osaka to Seattle routes average $1,588, based on KAYAK data over the past 12 months.

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

Based on deals KAYAK users found in the last 12 months, Wednesday is the cheapest day of the week to fly from Osaka to Seattle. It’s 14% cheaper than the average day, while Friday is the most expensive, with prices 34% higher.

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Key details for Osaka to Seattle flights

Low season

February

Cheapest flight

$472
Beat the crowds with an average 56% drop in travelers.
The most popular month to fly with an average 39% increase in travelers.
One-way flight from Osaka Kansai Intl Airport 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

Your Osaka to Seattle 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 Osaka to Seattle?

    Three cabin classes are available on flights from Osaka to Seattle:

    • Economy Class
    • Premium Economy Class
    • Business Class

  • How long is a flight from Osaka to Seattle?

    A nonstop flight from Osaka to Seattle takes 00m, covering 5,002 miles.

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

    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 Osaka to Seattle flight?

    Round-trip flights from Osaka to Seattle range from $796 to $1,151, with an average of $937 over the past 12 months. Anything below $796 counts as a good deal.

  • How much can I save by taking a layover when flying from Osaka to Seattle?

    On this route, layover flights are cheaper than nonstop options on average. Layover fares average $935 round-trip via Taipei City Taiwan Taoyuan Intl (TPE), compared to $1,009 for nonstop.

  • Have flight prices from Osaka to Seattle changed much recently?

    Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $849 to $5,371. That means the highest observed fare was about 6x higher than the lowest one.

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

    One-way fares from Osaka to Seattle are currently lower than usual. Average one-way flight prices are about $481, which is 23% below the typical average for this route.

  • What car rental options are available at Seattle/Tacoma Intl Airport (SEA)?

    Seattle/Tacoma Intl Airport (SEA) hosts 5 major car rental companies, with daily rates averaging $61 for economy cars. Top options include:

    • Europcar
    • Fox
    • Thrifty
    • Budget
    • Dollar

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

    Flights from Osaka to Seattle may depart from several airports in Osaka area, including Osaka Itami (ITM) and Osaka Kansai Intl (KIX). Flights usually arrive at Seattle/Tacoma Intl (SEA).

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

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

    • Taipei City Taiwan Taoyuan Intl (TPE) - 47% of one-stop connections
    • Vancouver Intl (YVR) - 31% of one-stop connections
    • Incheon Intl (ICN) - 15% of one-stop connections
    • Tokyo Haneda (HND) - 4% of one-stop connections

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

    Yes. Flexible dates can save you up to 36% on flights from Osaka to Seattle. Wednesday is the cheapest departure day at $809 round-trip on average, while Friday is the most expensive at $1,256, a difference of $447.

    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 Osaka to Seattle?

    Flying via Tokyo Haneda (HND) gives the shortest average 1-stop total travel time at 12h 50m, compared with 13h 28m via Tokyo Narita (NRT) and 14h 14m via Vancouver Intl (YVR).

  • What is the time difference between Osaka and Seattle?

    Seattle is 17 hours behind Osaka (Pacific Time vs Japan Time). Plan for the time shift when scheduling connections or first-day activities.

  • What popular places can I visit in Seattle?

    Some of the most popular sights in Seattle are Pike Place Market, Lumen Field and Space Needle. These are among the most viewed places in Seattle on KAYAK.

Your guide to booking Osaka to Seattle 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 Wednesday departure and avoid flying on Friday. On this route, Wednesday flights average $809, about $447 less than Friday fares (36% savings) based on the last 12 months.
  • If you can choose when to travel, plan your Osaka to Seattle trip for April. Fares historically average $785 round-trip in that month - typically $559 less than the most expensive month, which is October (based on the last 12 months).
  • If you have the time, taking a 1-stop flight through Taipei City Taiwan Taoyuan Intl Airport (TPE) can be cheaper than flying direct. The cheapest layover option averages $935 round-trip on this route - about $74 less than direct flights (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Seattle/Tacoma Intl Airport.

    • Coast Gateway Hotel
    • Seattle Airport Marriott
    • Fairfield by Marriott Inn & Suites Seattle Sea-Tac Airport

More options for your flight from Osaka to Seattle

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

Car rentals in Seattle
Hotels in Seattle
Vacations in Seattle