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$471+ Cheap flights from Osaka (OSA) to Seattle (SEA)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/21. Fares are subject to change and may not be available on all flights or dates of travel.
OSA — SEA
Aug 1 — Aug 81
Sat 8/1
Sat 8/8
1 adult, Economy
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Find cheap flights from Osaka to Seattle with Cheapflights

1. Tell us where you want to go

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Cheap flight deals from Osaka to Seattle

Cheapest flights from Osaka to Seattle
Explore the most affordable flight options available from Osaka to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 2, 2026.

This CheapOair deal was found by Cheapflights users on 6/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/212:20 pm
KIX
-
SEA
1 stop34h 40m
Multiple Airlines
Tue 9/2211:10 pm
SEA
-
KIX
1 stop28h 25m
Multiple Airlines
Deal found 6/28$930
This Kiwi.com deal was found by Cheapflights users on 6/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/25:00 pm
KIX
-
SEA
2 stops33h 40m
Multiple Airlines
Sun 9/611:10 pm
SEA
-
KIX
1 stop23h 00m
Multiple Airlines
Deal found 6/29$1,032
This Kiwi.com deal was found by Cheapflights users on 6/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/247:45 am
KIX
-
SEA
2 stops38h 26m
Multiple Airlines
Mon 8/3112:25 pm
SEA
-
KIX
1 stop26h 15m
Multiple Airlines
Deal found 6/29$1,034
This FlightHub deal was found by Cheapflights users on 6/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/119:30 am
KIX
-
SEA
1 stop21h 45m
Asiana Airlines
Thu 9/2412:10 am
SEA
-
KIX
1 stop16h 50m
Asiana Airlines
Deal found 6/27$1,039
This FlightHub deal was found by Cheapflights users on 6/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/279:10 am
KIX
-
SEA
1 stop21h 45m
Asiana Airlines
Wed 1/2012:10 am
SEA
-
KIX
1 stop16h 30m
Asiana Airlines
Deal found 6/28$1,045
This Mytrip deal was found by Cheapflights users on 6/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/237:45 am
KIX
-
SEA
2 stops26h 47m
Multiple Airlines
Wed 8/265:50 am
SEA
-
KIX
1 stop18h 35m
Multiple Airlines
Deal found 6/28$1,049
This FlightHub deal was found by Cheapflights users on 6/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/97:45 pm
KIX
-
SEA
1 stop35h 30m
Asiana Airlines
Thu 9/2412:10 am
SEA
-
KIX
1 stop16h 50m
Asiana Airlines
Deal found 6/27$1,053
This Gotogate deal was found by Cheapflights users on 6/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/23:15 pm
KIX
-
SEA
1 stop20h 50m
Philippine Airlines
Sun 9/611:10 pm
SEA
-
KIX
1 stop23h 00m
Philippine Airlines
Deal found 6/29$1,062
This Gotogate deal was found by Cheapflights users on 6/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/246:00 pm
KIX
-
SEA
1 stop32h 07m
Air Canada
Mon 8/3110:45 am
SEA
-
KIX
1 stop13h 40m
Air Canada
Deal found 6/29$1,071
This HIS deal was found by Cheapflights users on 6/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure HIS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/22:00 pm
ITM
-
SEA
2 stops16h 22m
Multiple Airlines
Sun 9/65:50 am
SEA
-
ITM
2 stops21h 05m
Multiple Airlines
Deal found 6/29$1,237
This Air Canada deal was found by Cheapflights users on 6/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/242:00 pm
ITM
-
SEA
2 stops24h 42m
Air Canada
Sat 10/177:20 pm
SEA
-
ITM
2 stops31h 35m
Air Canada
Deal found 6/28$1,281
This Kiwi.com deal was found by Cheapflights users on 6/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/72:30 pm
ITM
-
SEA
1 stop12h 45m
Multiple Airlines
Tue 7/74:30 pm
SEA
-
ITM
1 stop23h 00m
Multiple Airlines
Deal found 6/29$1,318

Find flight deals from Osaka to Seattle

Discover tips and strategies to find the most affordable flight options for your journey from Osaka (OSA) to Seattle (SEA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated July 2, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$930
(CheapOair)

One-way from

$471
(SmartFares)
Provider with most accurate pricing for Osaka (OSA)-Seattle/Tacoma Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Osaka (OSA)-Seattle/Tacoma Intl flights.
Search Deals
From Osaka (OSA) to Seattle/Tacoma Intl
Search Deals
One-way flight from Osaka (OSA) to Seattle/Tacoma Intl
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Osaka to Seattle that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 2, 2026.
Use the filters below to find and compare flights from Osaka to Seattle that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OsakaSeattle

KIX - SEA

KIXSEA

Osaka Kansai Intl

Tue 9/22

9:30 am-3:15 pm

1 stop21h 45m

Seattle/Tacoma Intl

Tue 9/22

12:10 am-10:30 pm

1 stop30h 20m

$1,073

OsakaSeattle

KIX - SEA

KIXSEA

Osaka Kansai Intl

Tue 10/27

7:25 pm-9:57 pm

1 stop18h 32m

Seattle/Tacoma Intl

Thu 1/21

10:10 am-8:20 pm

2 stops17h 10m

$1,152

OsakaSeattle

KIX - SEA

KIXSEA

Osaka Kansai Intl

Wed 8/5

3:20 pm-2:05 pm

2 stops38h 45m

Seattle/Tacoma Intl

Wed 8/19

12:25 pm-6:40 am

1 stop26h 15m

$1,170

OsakaSeattle

KIX - SEA

KIXSEA

Osaka Kansai Intl

Tue 10/27

9:10 am-2:55 pm

1 stop21h 45m

Seattle/Tacoma Intl

Wed 1/20

12:10 am-9:40 am

1 stop16h 30m

$1,171

OsakaSeattle

KIX - SEA

KIXSEA

Osaka Kansai Intl

Wed 8/19

6:15 pm-1:37 pm

1 stop35h 22m

Seattle/Tacoma Intl

Tue 9/15

1:00 pm-8:45 pm

1 stop15h 45m

$1,187

OsakaSeattle

KIX - SEA

KIXSEA

Osaka Kansai Intl

Fri 12/4

12:20 pm-3:05 pm

1 stop19h 45m

Seattle/Tacoma Intl

Tue 12/8

11:45 pm-12:50 pm

1 stop20h 05m

$1,203

OsakaSeattle

KIX - SEA

KIXSEA

Osaka Kansai Intl

Wed 9/9

7:45 pm-3:15 pm

1 stop35h 30m

Seattle/Tacoma Intl

Sun 9/20

12:10 am-10:30 pm

1 stop30h 20m

$1,220

OsakaSeattle

KIX - SEA

KIXSEA

Osaka Kansai Intl

Wed 9/23

12:15 am-3:15 pm

1 stop31h 00m

Seattle/Tacoma Intl

Fri 10/16

12:10 am-10:30 pm

1 stop30h 20m

$1,222

OsakaSeattle

KIX - SEA

KIXSEA

Osaka Kansai Intl

Tue 10/27

4:15 pm-10:10 am

2 stops33h 55m

Seattle/Tacoma Intl

Thu 1/21

7:55 pm-6:20 am

2 stops41h 25m

$1,253

OsakaSeattle

KIX - SEA

KIXSEA

Osaka Kansai Intl

Tue 10/27

11:55 am-8:04 pm

2 stops24h 09m

Seattle/Tacoma Intl

Thu 1/21

7:20 am-10:40 pm

2 stops22h 20m

$1,255

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/28

Showing 1-10 of 35 resultsSorted by cheapest first
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Compare providers for flights from Osaka to Seattle

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Osaka to Seattle in July.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Osaka-Seattle flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Osaka-Seattle flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Osaka-Seattle flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Osaka-Seattle flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Osaka-Seattle flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Osaka to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Osaka with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Osaka to Seattle
No data available for this route at this time. Please check back soon.

Reviews of airlines servicing Seattle

Get insights into the airlines that provide service to Seattle. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Seattle. Reviews last updated July 2, 2026.
See what other customers who have flown with STARLUX Airlines from Osaka to Seattle have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
STARLUX Airlines
8.9
Very good
352 reviews

Entertainment

8.8

Comfort

8.9

Overall

8.9

Food

8.7

Crew

9.2

Boarding

8.9

Reviews

1 / 14
8.0
Excellent

Andrew,Jun 2026

SEA - TPE

Great value for a coach ticket. Fantastic leg room for a 6’3”” man.
STARLUX Airlines
8.9
Very good
352 reviews
STARLUX Airlines
8.9
Very good
352 reviews

Entertainment

8.8

Comfort

8.9

Overall

8.9

Food

8.7

Crew

9.2

Boarding

8.9

Reviews

1 / 14
8.0
Excellent

Andrew,Jun 2026

SEA - TPE

Great value for a coach ticket. Fantastic leg room for a 6’3”” man.

Related info for your journey

Find useful and relevant information for your journey from Osaka to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Seattle from Osaka?

    If you book a flight to Seattle from Osaka, you will be flying to Seattle/Tacoma Intl, which is the city’s only airport. Seattle/Tacoma Intl (SEA) is located 11.4 mi from the center of Seattle. There are 0 flights from Osaka to Seattle/Tacoma Intl per day from 1 airline.

  • How long is the flight from Osaka to Seattle?

    For as low as $1,073, Asiana Airlines can have you in Seattle from Osaka in 21h 45m. Osaka and Seattle are separated by a distance of 5024 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What is the cheapest airline to fly from Osaka to Seattle round-trip?

    Air Canada, at $794, was found to be the cheapest airline from Osaka to Seattle..

  • What are the cheapest airlines to fly from Osaka to Seattle one-way?

    For one-way options, check prices for Air Canada. According to our data, you can fly for as low as $424. Users have also found prices from $482 and $484 on China Airlines and EVA Air, respectively.

  • Can I find deals for flights from Osaka to Seattle that include hotel bookings?

    Yes. In addition to deals on Osaka to Seattle flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Osaka to Seattle?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Osaka to Seattle.

  • Can I find deals for business class flights from Osaka to Seattle?

    Yes. Cheapflights offers flight deals from Osaka to Seattle by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
SeaTac
Tacoma
Lacey
Leavenworth
Olympia
Ocean Shores
Edmonds
Snoqualmie
Tumwater
Tukwila
Renton
Kent
Lynnwood
Ellensburg
Fife
Marysville
Lakewood
Issaquah
Shoreline
Centralia

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top airline flying from Osaka to Seattle

Discover the top airline that operate flights from Osaka to Seattle. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 2, 2026.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$794Average$1,234FlexibilityNo cancel feeOn-time67%

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