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$345+ 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 2/16. Fares are subject to change and may not be available on all flights or dates of travel.
OSA — SEA
janv. 26 — févr. 21
dim. 1/26
dim. 2/2
1 adult, Economy
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Cheap 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 janvier 21, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$708
(Gotogate)

One-way from

$345
(Kiwi.com)

Popular in

February

Cheapest in

November
Provider with most accurate pricing for Osaka (OSA)-Seattle/Tacoma Intl flight deals.
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Provider most trusted by Cheapflights users for Osaka (OSA)-Seattle/Tacoma Intl flights.
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From Osaka (OSA) to Seattle/Tacoma Intl
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One-way flight from Osaka (OSA) to Seattle/Tacoma Intl
Search Deals
Highest demand for flights based on searches. 5% potential increase in price ($65 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($17 potential savings vs. average RT price).
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Find 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 janvier 21, 2025.

This Gotogate deal was found by Cheapflights users on 1/21. 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.
mer. 3/1210:05 amKIX - SEA
1 stop25h 05mPhilippine Airlines
mer. 3/1911:35 pmSEA - KIX
1 stop27h 40mPhilippine Airlines
Deal found 1/21$708
This Expedia deal was found by Cheapflights users on 1/21. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sam. 6/146:05 pmKIX - SEA
1 stop16h 28mAir Canada
sam. 7/127:15 pmSEA - KIX
1 stop29h 10mAir Canada
Deal found 1/21$739
This Gotogate deal was found by Cheapflights users on 1/21. 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.
mar. 3/189:00 amKIX - SEA
1 stop18h 55mAsiana Airlines
mar. 3/251:45 pmSEA - KIX
1 stop36h 00mAsiana Airlines
Deal found 1/21$774
This Kiwi.com deal was found by Cheapflights users on 1/21. 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.
mar. 3/187:30 amKIX - SEA
2 stops27h 32mMultiple Airlines
mar. 3/251:45 pmSEA - KIX
1 stop15h 10mMultiple Airlines
Deal found 1/21$826
This Gotogate deal was found by Cheapflights users on 1/21. 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.
mer. 3/1212:20 pmKIX - SEA
1 stop19h 45mSTARLUX Airlines
mar. 3/181:05 amSEA - KIX
1 stop19h 45mSTARLUX Airlines
Deal found 1/21$829
This Trip.com deal was found by Cheapflights users on 1/21. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dim. 3/99:15 amKIX - SEA
1 stop16h 45mDelta
ven. 3/146:15 amSEA - KIX
2 stops22h 45mDelta
Deal found 1/21$871
This Trip.com deal was found by Cheapflights users on 1/21. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sam. 6/141:10 pmKIX - SEA
1 stop22h 20mEVA Air
ven. 7/112:10 amSEA - KIX
1 stop16h 00mEVA Air
Deal found 1/21$873
This HIS deal was found by Cheapflights users on 1/21. 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.
dim. 3/912:45 pmKIX - SEA
1 stop22h 30mChina Airlines
jeu. 3/131:10 amSEA - KIX
1 stop18h 25mChina Airlines
Deal found 1/21$878
This American Airlines deal was found by Cheapflights users on 1/20. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jeu. 2/204:25 pmITM - SEA
2 stops19h 18mAmerican Airlines
mer. 2/266:03 amSEA - ITM
2 stops19h 37mAmerican Airlines
Deal found 1/20$1,001
This Air Canada deal was found by Cheapflights users on 1/20. 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.
lun. 2/102:05 pmITM - SEA
2 stops25h 02mAir Canada
lun. 2/247:05 pmSEA - ITM
2 stops30h 50mAir Canada
Deal found 1/20$1,097
This Mytrip deal was found by Cheapflights users on 1/20. 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.
jeu. 2/208:25 amITM - SEA
3 stops25h 18mMultiple Airlines
mer. 2/267:28 amSEA - ITM
2 stops19h 27mMultiple Airlines
Deal found 1/20$1,174
This United Airlines deal was found by Cheapflights users on 1/21. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sam. 3/226:30 pmKIX - SEA
1 stop22h 25mUnited Airlines
mer. 4/95:10 pmSEA - KIX
2 stops53h 40mUnited Airlines
Deal found 1/21$1,225

Find flights from Osaka to Seattle within your budget

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 janvier 21, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

OsakaSeattle

KIX - SEA

KIXSEA

Osaka Kansai Intl

mer. 3/12

10:05 am-7:10 pm

1 stop25h 05m

Seattle/Tacoma Intl

mer. 3/19

11:35 pm-7:15 pm

1 stop27h 40m

$708

OsakaSeattle

KIX - SEA

KIXSEA

Osaka Kansai Intl

sam. 6/14

6:05 pm-6:33 pm

1 stop16h 28m

Seattle/Tacoma Intl

sam. 7/12

7:15 pm-4:25 pm

1 stop29h 10m

$739

OsakaSeattle

KIX - SEA

KIXSEA

Osaka Kansai Intl

mer. 2/5

7:30 am-5:00 pm

2 stops26h 30m

Seattle/Tacoma Intl

lun. 2/24

12:45 pm-3:50 pm

1 stop34h 05m

$744

OsakaSeattle

KIX - SEA

KIXSEA

Osaka Kansai Intl

mar. 3/18

9:00 am-11:55 am

1 stop18h 55m

Seattle/Tacoma Intl

mar. 3/25

1:45 pm-5:45 pm

1 stop36h 00m

$774

OsakaSeattle

KIX - SEA

KIXSEA

Osaka Kansai Intl

mer. 3/12

2:00 pm-4:05 pm

1 stop18h 05m

Seattle/Tacoma Intl

mar. 3/18

1:05 am-12:50 pm

1 stop19h 45m

$819

OsakaSeattle

KIX - SEA

KIXSEA

Osaka Kansai Intl

ven. 2/7

11:55 am-9:00 am

1 stop14h 05m

Seattle/Tacoma Intl

ven. 2/28

11:00 am-10:45 am

1 stop30h 45m

$869

OsakaSeattle

KIX - SEA

KIXSEA

Osaka Kansai Intl

sam. 6/14

1:10 pm-7:30 pm

1 stop22h 20m

Seattle/Tacoma Intl

ven. 7/11

2:10 am-10:10 am

1 stop16h 00m

$873

OsakaSeattle

KIX - SEA

KIXSEA

Osaka Kansai Intl

dim. 3/9

12:45 pm-6:15 pm

1 stop22h 30m

Seattle/Tacoma Intl

jeu. 3/13

1:10 am-11:35 am

1 stop18h 25m

$878

OsakaSeattle

ITM - SEA

ITMSEA

Osaka Itami

jeu. 2/20

4:25 pm-6:43 pm

2 stops19h 18m

Seattle/Tacoma Intl

mer. 2/26

6:03 am-6:40 pm

2 stops19h 37m

$1,001

OsakaSeattle

ITM - SEA

ITMSEA

Osaka Itami

lun. 2/10

2:05 pm-10:07 pm

2 stops25h 02m

Seattle/Tacoma Intl

mar. 2/25

5:45 am-6:55 pm

2 stops20h 10m

$1,097

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/20

Showing 1-10 of 35 results
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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 January.
ProviderPrice AccuracyTrust Score*
eDreamsPrice Accuracy3 starsTrust Score*3 stars
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.

Travel insights for flights from Osaka to Seattle

Get recent, data-driven insights about flights from Osaka to Seattle including ideal travel times, pricing trends, and more.

What is the cheapest month to book a flight from Osaka to Seattle?

Currently, January is the cheapest month in which you can book a flight from Osaka to Seattle (average of $238). Flying from Osaka to Seattle in July is currently the most expensive (average of $411). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from OSA to SEA?

Find hourly flight availability from Osaka to Seattle. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated janvier 21, 2025.

A simple way to save on the total cost of your ticket is to fly from Osaka to Seattle in the morning. If you’re flexible enough to do this you can expect to save up to 9% on your trip compared to booking a flight in the afternoon.

Rainfall in Seattle by month

Plan your trip to Seattle by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Seattle ranges from 0.7 - 6.6 inches per month. November is typically the wettest month, when rainfall can reach 6.6 in. July is typically the driest time to visit Seattle when rainfall is around 0.7 in.

Temperature in Seattle by month

Plan your trip to Seattle by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Seattle, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 66.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 41.0 F).

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 janvier 21, 2025.
Get a feel of what it's like to fly with ANA, United Airlines and Air Canada from Osaka to Seattle by reading reviews from past customers. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
STARLUX Airlines
9.1
Wonderful
136 reviews

Comfort

9.0

Food

9.0

Boarding

9.1

Overall

9.1

Entertainment

9.1

Crew

9.3

Reviews

1 / 4

Issuing boarding pass takes too long. Either not enough people to help or the process is just way too slow or long. I tried many times to contact a representative on the phone, no one is available to take your call. Our last flight was cancelled and we were given another flight the next day and Starlux would not guarantee a free hotel accommodation to help my family.

STARLUX Airlines
9.1
Wonderful
136 reviews
STARLUX Airlines
9.1
Wonderful
136 reviews

Comfort

9.0

Food

9.0

Boarding

9.1

Overall

9.1

Entertainment

9.1

Crew

9.3

Reviews

1 / 4

Issuing boarding pass takes too long. Either not enough people to help or the process is just way too slow or long. I tried many times to contact a representative on the phone, no one is available to take your call. Our last flight was cancelled and we were given another flight the next day and Starlux would not guarantee a free hotel accommodation to help my family.

EVA Air
8.4
Very good
1,255 reviews
STARLUX Airlines
9.1
Wonderful
136 reviews

Comfort

9.0

Food

9.0

Boarding

9.1

Overall

9.1

Entertainment

9.1

Crew

9.3

Reviews

1 / 4

Issuing boarding pass takes too long. Either not enough people to help or the process is just way too slow or long. I tried many times to contact a representative on the phone, no one is available to take your call. Our last flight was cancelled and we were given another flight the next day and Starlux would not guarantee a free hotel accommodation to help my family.

ANA
8.4
Very good
852 reviews
STARLUX Airlines
9.1
Wonderful
136 reviews

Comfort

9.0

Food

9.0

Boarding

9.1

Overall

9.1

Entertainment

9.1

Crew

9.3

Reviews

1 / 4

Issuing boarding pass takes too long. Either not enough people to help or the process is just way too slow or long. I tried many times to contact a representative on the phone, no one is available to take your call. Our last flight was cancelled and we were given another flight the next day and Starlux would not guarantee a free hotel accommodation to help my family.

Japan Airlines
8.3
Very good
1,449 reviews
STARLUX Airlines
9.1
Wonderful
136 reviews

Comfort

9.0

Food

9.0

Boarding

9.1

Overall

9.1

Entertainment

9.1

Crew

9.3

Reviews

1 / 4

Issuing boarding pass takes too long. Either not enough people to help or the process is just way too slow or long. I tried many times to contact a representative on the phone, no one is available to take your call. Our last flight was cancelled and we were given another flight the next day and Starlux would not guarantee a free hotel accommodation to help my family.

China Airlines
8.2
Very good
737 reviews
STARLUX Airlines
9.1
Wonderful
136 reviews

Comfort

9.0

Food

9.0

Boarding

9.1

Overall

9.1

Entertainment

9.1

Crew

9.3

Reviews

1 / 4

Issuing boarding pass takes too long. Either not enough people to help or the process is just way too slow or long. I tried many times to contact a representative on the phone, no one is available to take your call. Our last flight was cancelled and we were given another flight the next day and Starlux would not guarantee a free hotel accommodation to help my family.

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 3 different airlines.

  • What are the cheapest airlines flying from Osaka to Seattle round-trip?

    Philippine Airlines, at $708, was found to be the cheapest airline from Osaka to Seattle.Alternate airlines to your destination round-trip include Air Canada and Asiana Airlines. Users have found that Philippine Airlines is 33% cheaper than the other options available to this destination.

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

    For one-way options, check prices for Philippine Airlines. According to our data, you can fly for as low as $466. Users have also found prices from $507 and $508 on EVA Air and Asiana Airlines, 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.

  • What is the cheapest month to book a flight from Osaka to Seattle?

    Currently, January is the cheapest month in which you can book a flight from Osaka to Seattle (average of $238). Flying from Osaka to Seattle in July is currently the most expensive (average of $411). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Osaka?

Book flights to Osaka if you plan to visit one of these locations
SeaTac
Tukwila
Renton
Tacoma
Lacey
Federal Way
Ocean Shores
Leavenworth
Olympia
Marysville
Centralia
Cle Elum
Mukilteo
Aberdeen
Lakewood
Issaquah
Shoreline
Lynnwood
Shelton
Silverdale

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Osaka to Seattle

See prices for flight routes from nearby airports that may be better suited for you.
Kansai Intl to Seattle flights
Itami to Seattle flights
Kansai Intl to Portland flights

Top 3 airlines flying from Osaka to Seattle

Discover the top 3 airlines 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 janvier 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$838Average$1,367FlexibilityNo cancel feeOn-time67%
Asiana AirlinesCheapest$872Average$926FlexibilityNo cancel feeOn-time76%
ANACheapest$1,397Average$1,863FlexibilityNo cancel feeOn-time80%
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