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$420+ Cheap flights from Osaka (OSA) to Washington

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 5/14. Fares are subject to change and may not be available on all flights or dates of travel.
OSA — SEA
Apr 29 — May 61
Tue 4/29
Tue 5/6
1 adult, Economy
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Cheap flight deals from Osaka to Washington

Keep the following information in mind while searching for Osaka to Washington flight deals. Data was last updated April 24, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$857
(Trip.com)

One-way from

$420
(Kiwi.com)

Popular in

September

Cheapest in

May

Average price

$955
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 Washington
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One-way flight from Osaka (OSA) to Washington
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Highest demand for flights based on searches. 10% potential increase in price ($113 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($25 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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Find flight deals from Osaka to Washington

Cheapest flights from Osaka to Washington
Explore the most affordable flight options available from Osaka to Washington. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 24, 2025.

This Trip.com deal was found by Cheapflights users on 4/23. 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.
Mon 6/166:05 pmKIX - PDX
1 stop31h 15mAir Canada
Wed 6/256:15 amPDX - KIX
1 stop18h 10mAir Canada
Deal found 4/23$857
This Mytrip deal was found by Cheapflights users on 4/23. 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.
Wed 5/77:05 pmKIX - SEA
1 stop31h 35mMultiple Airlines
Sat 5/1012:50 pmSEA - KIX
1 stop16h 10mMultiple Airlines
Deal found 4/23$896
This Expedia deal was found by Cheapflights users on 4/23. 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.
Fri 5/233:10 pmKIX - SEA
1 stop17h 00mSTARLUX Airlines
Thu 5/291:15 amSEA - KIX
1 stop20h 45mSTARLUX Airlines
Deal found 4/23$965
This HIS deal was found by Cheapflights users on 4/23. 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.
Mon 6/161:25 pmKIX - PDX
2 stops22h 43mSTARLUX Airlines
Wed 6/258:59 pmPDX - KIX
2 stops23h 16mSTARLUX Airlines
Deal found 4/23$1,036
This Philippine Airlines deal was found by Cheapflights users on 4/23. 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 Philippine Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/2010:20 amKIX - SEA
1 stop24h 55mPhilippine Airlines
Wed 9/311:35 pmSEA - KIX
1 stop28h 05mPhilippine Airlines
Deal found 4/23$1,058
This American Airlines deal was found by Cheapflights users on 4/23. 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.
Wed 8/202:35 pmITM - SEA
2 stops20h 34mAmerican Airlines
Wed 9/31:30 pmSEA - ITM
1 stop14h 15mAmerican Airlines
Deal found 4/23$1,060
This American Airlines deal was found by Cheapflights users on 4/23. 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.
Thu 8/212:35 pmITM - SEA
2 stops18h 18mMultiple Airlines
Mon 9/87:15 amSEA - ITM
2 stops19h 25mMultiple Airlines
Deal found 4/23$1,065
This oojo deal was found by Cheapflights users on 4/23. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/211:10 pmKIX - SEA
2 stops35h 44mEVA Air
Sun 9/71:30 amSEA - KIX
1 stop18h 40mEVA Air
Deal found 4/23$1,104
This FlightHub deal was found by Cheapflights users on 4/23. 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.
Thu 8/2110:50 amKIX - SEA
1 stop17h 55mAsiana Airlines
Mon 9/82:15 pmSEA - KIX
1 stop27h 25mAsiana Airlines
Deal found 4/23$1,131
This Air Canada deal was found by Cheapflights users on 4/23. 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.
Sat 6/146:05 pmKIX - SEA
1 stop20h 08mAir Canada
Sat 7/121:45 pmSEA - KIX
1 stop34h 40mAir Canada
Deal found 4/23$1,197
This Delta deal was found by Cheapflights users on 4/23. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/219:05 amKIX - SEA
2 stops30h 53mDelta
Mon 9/812:45 pmSEA - KIX
1 stop30h 35mDelta
Deal found 4/23$1,317
This Mytrip deal was found by Cheapflights users on 4/23. 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.
Mon 6/167:40 amKIX - PDX
3 stops45h 12mMultiple Airlines
Wed 6/256:39 pmPDX - KIX
2 stops24h 41mMultiple Airlines
Deal found 4/23$1,328

Cheapflights Fare Finder

Customize your flight search to find flights from Osaka to Washington 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 April 24, 2025.
Use the filters below to find and compare flights from Osaka to Washington that are best for you.

Fly from

Osaka

Fly to

Washington

Route

Depart

Return

Price

OsakaPortland

KIX - PDX

KIXPDX

Osaka Kansai Intl

Mon 6/16

6:05 pm-9:20 am

1 stop31h 15m

Portland

Wed 6/25

6:15 am-4:25 pm

1 stop18h 10m

$857

OsakaSeattle

KIX - SEA

KIXSEA

Osaka Kansai Intl

Wed 5/7

7:05 pm-10:40 am

1 stop31h 35m

Seattle/Tacoma Intl

Sat 5/10

12:50 pm-9:00 pm

1 stop16h 10m

$896

OsakaSeattle

KIX - SEA

KIXSEA

Osaka Kansai Intl

Fri 5/23

3:10 pm-4:10 pm

1 stop17h 00m

Seattle/Tacoma Intl

Thu 5/29

1:15 am-2:00 pm

1 stop20h 45m

$965

OsakaPortland

KIX - PDX

KIXPDX

Osaka Kansai Intl

Mon 6/16

1:25 pm-8:08 pm

2 stops22h 43m

Portland

Wed 6/25

8:59 pm-12:15 pm

2 stops23h 16m

$1,036

OsakaSeattle

KIX - SEA

KIXSEA

Osaka Kansai Intl

Wed 8/20

10:20 am-7:15 pm

1 stop24h 55m

Seattle/Tacoma Intl

Wed 9/3

11:35 pm-7:40 pm

1 stop28h 05m

$1,058

OsakaSeattle

ITM - SEA

ITMSEA

Osaka Itami

Wed 8/20

2:35 pm-7:09 pm

2 stops20h 34m

Seattle/Tacoma Intl

Wed 9/3

1:30 pm-7:45 pm

1 stop14h 15m

$1,060

OsakaSeattle

ITM - SEA

ITMSEA

Osaka Itami

Thu 8/21

2:35 pm-4:53 pm

2 stops18h 18m

Seattle/Tacoma Intl

Mon 9/8

7:15 am-6:40 pm

2 stops19h 25m

$1,065

OsakaSeattle

KIX - SEA

KIXSEA

Osaka Kansai Intl

Thu 8/21

1:10 pm-8:54 am

2 stops35h 44m

Seattle/Tacoma Intl

Sun 9/7

1:30 am-12:10 pm

1 stop18h 40m

$1,104

OsakaSeattle

KIX - SEA

KIXSEA

Osaka Kansai Intl

Thu 8/21

10:50 am-12:45 pm

1 stop17h 55m

Seattle/Tacoma Intl

Mon 9/8

2:15 pm-9:40 am

1 stop27h 25m

$1,131

OsakaSeattle

KIX - SEA

KIXSEA

Osaka Kansai Intl

Sat 6/14

6:05 pm-10:13 pm

1 stop20h 08m

Seattle/Tacoma Intl

Sat 7/12

1:45 pm-4:25 pm

1 stop34h 40m

$1,197

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/24

Showing 1-10 of 40 results
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Best time to book a flight from Osaka to Washington

Have a flexible travel schedule? Discover the best time to fly to Washington 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 Washington

What is the cheapest month to book a flight from Osaka to State of Washington?

Currently, January is the cheapest month in which you can book a flight from Osaka to State of Washington (average of $238). Flying from Osaka to State of Washington 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 WA?

Find hourly flight availability from Osaka to Washington. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 24, 2025.

When flying from Osaka to State of Washington, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Rainfall in Washington by month

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

In terms of precipitation, rainfall in State of Washington 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 State of Washington when rainfall is around 0.7 in.

Temperature in Washington by month

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

If weather is an important factor for your trip to State of Washington, 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 Washington

Get insights into the airlines that provide service to Washington. 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 Washington. Reviews last updated April 24, 2025.
Read through reviews of airlines operating flights from Osaka to Washington, such as STARLUX Airlines, EVA Air and Korean Air. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
STARLUX Airlines
9.1
Wonderful
157 reviews

Crew

9.3

Boarding

9.0

Entertainment

9.0

Overall

9.1

Comfort

9.0

Food

8.9

Reviews

1 / 6
10.0
Excellent

Anonymous,Apr 2025

KIX - TPE

Very pleasant experience overall, while the main course of the meal could have been better and the movies could have been more recent and with more variety. They offer blindfolds and earplugs, which are a plus.
STARLUX Airlines
9.1
Wonderful
157 reviews
STARLUX Airlines
9.1
Wonderful
157 reviews

Crew

9.3

Boarding

9.0

Entertainment

9.0

Overall

9.1

Comfort

9.0

Food

8.9

Reviews

1 / 6
10.0
Excellent

Anonymous,Apr 2025

KIX - TPE

Very pleasant experience overall, while the main course of the meal could have been better and the movies could have been more recent and with more variety. They offer blindfolds and earplugs, which are a plus.
EVA Air
8.4
Very good
1,180 reviews
STARLUX Airlines
9.1
Wonderful
157 reviews

Crew

9.3

Boarding

9.0

Entertainment

9.0

Overall

9.1

Comfort

9.0

Food

8.9

Reviews

1 / 6
10.0
Excellent

Anonymous,Apr 2025

KIX - TPE

Very pleasant experience overall, while the main course of the meal could have been better and the movies could have been more recent and with more variety. They offer blindfolds and earplugs, which are a plus.
Korean Air
8.4
Very good
1,062 reviews
STARLUX Airlines
9.1
Wonderful
157 reviews

Crew

9.3

Boarding

9.0

Entertainment

9.0

Overall

9.1

Comfort

9.0

Food

8.9

Reviews

1 / 6
10.0
Excellent

Anonymous,Apr 2025

KIX - TPE

Very pleasant experience overall, while the main course of the meal could have been better and the movies could have been more recent and with more variety. They offer blindfolds and earplugs, which are a plus.
Japan Airlines
8.3
Very good
1,453 reviews
STARLUX Airlines
9.1
Wonderful
157 reviews

Crew

9.3

Boarding

9.0

Entertainment

9.0

Overall

9.1

Comfort

9.0

Food

8.9

Reviews

1 / 6
10.0
Excellent

Anonymous,Apr 2025

KIX - TPE

Very pleasant experience overall, while the main course of the meal could have been better and the movies could have been more recent and with more variety. They offer blindfolds and earplugs, which are a plus.
China Airlines
8.3
Very good
727 reviews
STARLUX Airlines
9.1
Wonderful
157 reviews

Crew

9.3

Boarding

9.0

Entertainment

9.0

Overall

9.1

Comfort

9.0

Food

8.9

Reviews

1 / 6
10.0
Excellent

Anonymous,Apr 2025

KIX - TPE

Very pleasant experience overall, while the main course of the meal could have been better and the movies could have been more recent and with more variety. They offer blindfolds and earplugs, which are a plus.

Related info for your journey

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

  • What are the cheapest airlines to fly from Osaka to State of Washington one-way?

    The cheapest airlines for a one-way flight from Osaka to State of Washington are Korean Air ($545), China Airlines ($564), and Philippine Airlines ($590).

  • What are the most popular routes from Osaka to State of Washington?

    The most popular flight routes from Osaka to State of Washington are Osaka Kansai Intl - Seattle/Tacoma Intl, Osaka Itami - Seattle/Tacoma Intl and Osaka Kansai Intl - Portland.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Osaka to Washington 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 State of Washington?

    Currently, January is the cheapest month in which you can book a flight from Osaka to State of Washington (average of $238). Flying from Osaka to State of Washington 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

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Alternative routes for Osaka to Washington

See prices for flight routes from nearby airports that may be better suited for you.
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Top airline flying from Osaka to Washington

Discover the top airline that operate flights from Osaka to Washington. 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 April 24, 2025.
AirlineCheapestAverageFlexibilityOn-time
Asiana AirlinesCheapest$852Average$923FlexibilityNo cancel feeOn-time76%

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