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$417+ 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 6/3. Fares are subject to change and may not be available on all flights or dates of travel.
OSA — SEA
May 6 — May 131
Tue 5/6
Tue 5/13
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 May 1, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$778
(Kiwi.com)

One-way from

$417
(Kiwi.com)

Popular in

September

Cheapest in

May

Average price

$534
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. 11% potential increase in price ($127 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($31 potential savings vs. average RT price).
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Average for round-trip flights in May 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 May 1, 2025.

This Kiwi.com deal was found by Cheapflights users on 4/29. 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 5/2811:35 amKIX - SEA
1 stop15h 05mMultiple Airlines
Wed 6/41:20 pmSEA - KIX
1 stop17h 30mMultiple Airlines
Deal found 4/29$778
This Gotogate deal was found by Cheapflights users on 4/30. 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.
Sat 6/146:05 pmKIX - PDX
1 stop31h 15mAir Canada
Sat 6/217:40 pmPDX - KIX
1 stop28h 45mAir Canada
Deal found 4/30$816
This Priceline deal was found by Cheapflights users on 4/30. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/86:05 pmKIX - SEA
1 stop20h 11mAir Canada
Sat 7/262:55 pmSEA - KIX
1 stop33h 30mAir Canada
Deal found 4/30$901
This oojo deal was found by Cheapflights users on 4/30. 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.
Tue 11/116:00 pmKIX - SEA
1 stop16h 40mEVA Air
Tue 11/1111:30 pmSEA - KIX
1 stop24h 15mEVA Air
Deal found 4/30$915
This FlightHub deal was found by Cheapflights users on 4/29. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/281:25 pmKIX - SEA
1 stop18h 45mSTARLUX Airlines
Tue 6/31:15 amSEA - KIX
1 stop19h 00mSTARLUX Airlines
Deal found 4/29$942
This Gotogate deal was found by Cheapflights users on 4/29. 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 6/163:10 pmKIX - PDX
2 stops20h 58mSTARLUX Airlines
Wed 6/259:59 pmPDX - KIX
2 stops22h 16mSTARLUX Airlines
Deal found 4/29$1,016
This Philippine Airlines deal was found by Cheapflights users on 4/30. 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 8/203:20 pmKIX - SEA
1 stop19h 55mPhilippine Airlines
Wed 9/311:35 pmSEA - KIX
1 stop22h 45mPhilippine Airlines
Deal found 4/30$1,101
This FlightHub deal was found by Cheapflights users on 4/30. 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 4/30$1,112
This Kiwi.com deal was found by Cheapflights users on 4/30. 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 5/142:35 pmITM - SEA
1 stop12h 55mMultiple Airlines
Sat 5/177:55 pmSEA - ITM
2 stops31h 00mMultiple Airlines
Deal found 4/30$1,133
This Trip.com deal was found by Cheapflights users on 4/30. 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.
Fri 6/271:10 pmKIX - PDX
2 stops26h 49mMultiple Airlines
Wed 7/3010:30 amPDX - KIX
1 stop16h 15mMultiple Airlines
Deal found 4/30$1,196
This Air Canada deal was found by Cheapflights users on 4/30. 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.
Tue 7/82:05 pmITM - SEA
2 stops20h 31mAir Canada
Sat 7/267:15 pmSEA - ITM
2 stops31h 40mAir Canada
Deal found 4/30$1,216
This American Airlines deal was found by Cheapflights users on 4/30. 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
1 stop12h 00mAmerican Airlines
Mon 9/87:15 amSEA - ITM
2 stops19h 25mAmerican Airlines
Deal found 4/30$1,390

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 May 1, 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

OsakaSeattle

KIX - SEA

KIXSEA

Osaka Kansai Intl

Wed 5/28

11:35 am-10:40 am

1 stop15h 05m

Seattle/Tacoma Intl

Wed 6/4

1:20 pm-10:50 pm

1 stop17h 30m

$778

OsakaPortland

KIX - PDX

KIXPDX

Osaka Kansai Intl

Sat 6/14

6:05 pm-9:20 am

1 stop31h 15m

Portland

Sat 6/21

7:40 pm-4:25 pm

1 stop28h 45m

$816

OsakaSeattle

KIX - SEA

KIXSEA

Osaka Kansai Intl

Tue 7/8

6:05 pm-10:16 pm

1 stop20h 11m

Seattle/Tacoma Intl

Sat 7/26

2:55 pm-4:25 pm

1 stop33h 30m

$901

OsakaSeattle

KIX - SEA

KIXSEA

Osaka Kansai Intl

Wed 5/28

1:25 pm-4:10 pm

1 stop18h 45m

Seattle/Tacoma Intl

Tue 6/3

1:15 am-12:15 pm

1 stop19h 00m

$942

OsakaPortland

KIX - PDX

KIXPDX

Osaka Kansai Intl

Mon 6/16

3:10 pm-8:08 pm

2 stops20h 58m

Portland

Wed 6/25

9:59 pm-12:15 pm

2 stops22h 16m

$1,016

OsakaSeattle

KIX - SEA

KIXSEA

Osaka Kansai Intl

Sat 6/14

1:10 pm-7:30 pm

1 stop22h 20m

Seattle/Tacoma Intl

Fri 7/11

2:10 am-10:10 am

1 stop16h 00m

$1,049

OsakaPortland

KIX - PDX

KIXPDX

Osaka Kansai Intl

Fri 6/27

1:10 pm-11:59 pm

2 stops26h 49m

Portland

Wed 7/30

10:30 am-6:45 pm

1 stop16h 15m

$1,196

OsakaSeattle

KIX - SEA

KIXSEA

Osaka Kansai Intl

Wed 5/14

9:10 am-12:30 pm

1 stop19h 20m

Seattle/Tacoma Intl

Sat 5/17

2:15 pm-5:50 pm

1 stop35h 35m

$1,223

OsakaSeattle

ITM - SEA

ITMSEA

Osaka Itami

Wed 5/28

7:05 am-4:10 pm

2 stops25h 05m

Seattle/Tacoma Intl

Tue 6/3

1:15 am-7:55 pm

2 stops26h 40m

$1,309

OsakaSeattle

ITM - SEA

ITMSEA

Osaka Itami

Thu 8/21

2:35 pm-10:35 am

1 stop12h 00m

Seattle/Tacoma Intl

Mon 9/8

7:15 am-5:35 pm

2 stops18h 20m

$1,385

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/30

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 $405). 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 May 1, 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 May 1, 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
161 reviews

Comfort

9.0

Boarding

9.0

Entertainment

9.0

Overall

9.1

Crew

9.3

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
161 reviews
STARLUX Airlines
9.1
Wonderful
161 reviews

Comfort

9.0

Boarding

9.0

Entertainment

9.0

Overall

9.1

Crew

9.3

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
1,186 reviews
STARLUX Airlines
9.1
Wonderful
161 reviews

Comfort

9.0

Boarding

9.0

Entertainment

9.0

Overall

9.1

Crew

9.3

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
1,068 reviews
STARLUX Airlines
9.1
Wonderful
161 reviews

Comfort

9.0

Boarding

9.0

Entertainment

9.0

Overall

9.1

Crew

9.3

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
1,464 reviews
STARLUX Airlines
9.1
Wonderful
161 reviews

Comfort

9.0

Boarding

9.0

Entertainment

9.0

Overall

9.1

Crew

9.3

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
732 reviews
STARLUX Airlines
9.1
Wonderful
161 reviews

Comfort

9.0

Boarding

9.0

Entertainment

9.0

Overall

9.1

Crew

9.3

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 ($540), China Airlines ($559), and EVA Air ($586).

  • 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 $405). 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 May 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
Asiana AirlinesCheapest$852Average$923FlexibilityNo cancel feeOn-time76%

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