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$423+ 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 9/8. Fares are subject to change and may not be available on all flights or dates of travel.
OSA — SEA
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
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 June 12, 2025.

Round-trip from

$789
(Mytrip)

One-way from

$423
(Kiwi.com)

Popular in

September

Cheapest in

May

Average price

$967
From Osaka (OSA) to Washington
Search Deals
One-way flight from Osaka (OSA) to Washington
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($141 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($28 potential savings vs. average RT price).
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Average for round-trip flights in June 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 June 12, 2025.

This Mytrip deal was found by Cheapflights users on 6/12. 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.
Fri 7/42:30 pmKIX - SEA
1 stop14h 15mMultiple Airlines
Fri 7/182:30 pmSEA - KIX
1 stop16h 20mMultiple Airlines
Deal found 6/12$789
This Delta deal was found by Cheapflights users on 6/11. 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.
Tue 9/912:35 pmKIX - PDX
2 stops40h 20mDelta
Wed 9/247:10 amPDX - KIX
2 stops41h 55mDelta
Deal found 6/11$802
This Korean Air deal was found by Cheapflights users on 6/11. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/86:20 pmKIX - PDX
2 stops36h 18mKorean Air
Thu 9/259:10 amPDX - KIX
2 stops19h 50mKorean Air
Deal found 6/11$808
This Cheapflightsfares deal was found by Cheapflights users on 6/11. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/71:10 pmKIX - SEA
1 stop22h 10mChina Airlines
Thu 10/301:10 amSEA - KIX
1 stop20h 10mChina Airlines
Deal found 6/11$846
This Air Canada deal was found by Cheapflights users on 6/12. 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 10/76:05 pmKIX - PDX
1 stop16h 41mAir Canada
Wed 10/156:15 amPDX - KIX
1 stop18h 10mAir Canada
Deal found 6/12$854
This Expedia deal was found by Cheapflights users on 6/11. 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.
Mon 9/16:20 pmKIX - PDX
2 stops42h 37mMultiple Airlines
Mon 11/177:30 amPDX - KIX
1 stop16h 05mMultiple Airlines
Deal found 6/11$858
This Delta deal was found by Cheapflights users on 6/10. 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.
Wed 8/2012:35 pmKIX - SEA
1 stop17h 26mDelta
Wed 9/312:35 pmSEA - KIX
1 stop16h 25mDelta
Deal found 6/10$864
This Trip.com deal was found by Cheapflights users on 6/12. 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 6/231:10 pmKIX - SEA
1 stop22h 20mEVA Air
Sun 6/291:50 amSEA - KIX
1 stop16h 20mEVA Air
Deal found 6/12$898
This oojo deal was found by Cheapflights users on 6/12. 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.
Mon 8/186:20 pmKIX - SEA
1 stop32h 30mKorean Air
Mon 9/812:50 pmSEA - KIX
1 stop36h 15mKorean Air
Deal found 6/12$899
This Philippine Airlines deal was found by Cheapflights users on 6/12. 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 6/12$903
This Expedia deal was found by Cheapflights users on 6/10. 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 7/111:25 pmKIX - SEA
1 stop19h 10mSTARLUX Airlines
Mon 7/141:15 amSEA - KIX
1 stop19h 00mSTARLUX Airlines
Deal found 6/10$928
This SmartFares deal was found by Cheapflights users on 6/11. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/1010:50 amKIX - SEA
1 stop17h 55mAsiana Airlines
Mon 7/142:30 pmSEA - KIX
1 stop14h 35mAsiana Airlines
Deal found 6/11$948

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 June 12, 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

Fri 7/4

2:30 pm-12:45 pm

1 stop14h 15m

Seattle/Tacoma Intl

Fri 7/18

2:30 pm-10:50 pm

1 stop16h 20m

$789

OsakaPortland

KIX - PDX

KIXPDX

Osaka Kansai Intl

Tue 9/9

12:35 pm-12:55 pm

2 stops40h 20m

Portland

Wed 9/24

7:10 am-5:05 pm

2 stops41h 55m

$802

OsakaPortland

KIX - PDX

KIXPDX

Osaka Kansai Intl

Mon 9/8

6:20 pm-2:38 pm

2 stops36h 18m

Portland

Mon 9/22

5:10 pm-11:20 am

2 stops26h 10m

$808

OsakaSeattle

KIX - SEA

KIXSEA

Osaka Kansai Intl

Tue 10/7

1:10 pm-7:20 pm

1 stop22h 10m

Seattle/Tacoma Intl

Thu 10/30

1:10 am-1:20 pm

1 stop20h 10m

$846

OsakaPortland

KIX - PDX

KIXPDX

Osaka Kansai Intl

Tue 10/7

6:05 pm-6:46 pm

1 stop16h 41m

Portland

Wed 10/15

6:15 am-4:25 pm

1 stop18h 10m

$854

OsakaPortland

KIX - PDX

KIXPDX

Osaka Kansai Intl

Mon 9/1

6:20 pm-8:57 pm

2 stops42h 37m

Portland

Mon 11/17

7:30 am-4:35 pm

1 stop16h 05m

$858

OsakaSeattle

KIX - SEA

KIXSEA

Osaka Kansai Intl

Wed 8/20

12:35 pm-2:01 pm

1 stop17h 26m

Seattle/Tacoma Intl

Wed 9/3

12:35 pm-9:00 pm

1 stop16h 25m

$864

OsakaSeattle

KIX - SEA

KIXSEA

Osaka Kansai Intl

Mon 6/23

1:10 pm-7:30 pm

1 stop22h 20m

Seattle/Tacoma Intl

Sun 6/29

1:50 am-10:10 am

1 stop16h 20m

$898

OsakaSeattle

KIX - SEA

KIXSEA

Osaka Kansai Intl

Mon 8/18

6:20 pm-10:50 am

1 stop32h 30m

Seattle/Tacoma Intl

Mon 9/8

12:50 pm-5:05 pm

1 stop36h 15m

$899

OsakaSeattle

KIX - SEA

KIXSEA

Osaka Kansai Intl

Wed 8/20

3:20 pm-7:15 pm

1 stop19h 55m

Seattle/Tacoma Intl

Wed 9/3

11:35 pm-2:20 pm

1 stop22h 45m

$903

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/12

Showing 1-10 of 56 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 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 June 12, 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 June 12, 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
178 reviews

Entertainment

8.9

Crew

9.3

Overall

9.1

Comfort

9.0

Boarding

9.0

Food

8.8

Reviews

1 / 7
10.0
Excellent

ltulagan,Jun 2025

TPE - SEA

The whole trip was very pleasant from the crew, the food, the amenities during the flight.
STARLUX Airlines
9.1
Wonderful
178 reviews
STARLUX Airlines
9.1
Wonderful
178 reviews

Entertainment

8.9

Crew

9.3

Overall

9.1

Comfort

9.0

Boarding

9.0

Food

8.8

Reviews

1 / 7
10.0
Excellent

ltulagan,Jun 2025

TPE - SEA

The whole trip was very pleasant from the crew, the food, the amenities during the flight.
EVA Air
8.4
Very good
1,202 reviews
STARLUX Airlines
9.1
Wonderful
178 reviews

Entertainment

8.9

Crew

9.3

Overall

9.1

Comfort

9.0

Boarding

9.0

Food

8.8

Reviews

1 / 7
10.0
Excellent

ltulagan,Jun 2025

TPE - SEA

The whole trip was very pleasant from the crew, the food, the amenities during the flight.
Korean Air
8.4
Very good
1,088 reviews
STARLUX Airlines
9.1
Wonderful
178 reviews

Entertainment

8.9

Crew

9.3

Overall

9.1

Comfort

9.0

Boarding

9.0

Food

8.8

Reviews

1 / 7
10.0
Excellent

ltulagan,Jun 2025

TPE - SEA

The whole trip was very pleasant from the crew, the food, the amenities during the flight.
Japan Airlines
8.3
Very good
1,489 reviews
STARLUX Airlines
9.1
Wonderful
178 reviews

Entertainment

8.9

Crew

9.3

Overall

9.1

Comfort

9.0

Boarding

9.0

Food

8.8

Reviews

1 / 7
10.0
Excellent

ltulagan,Jun 2025

TPE - SEA

The whole trip was very pleasant from the crew, the food, the amenities during the flight.
China Airlines
8.3
Very good
738 reviews
STARLUX Airlines
9.1
Wonderful
178 reviews

Entertainment

8.9

Crew

9.3

Overall

9.1

Comfort

9.0

Boarding

9.0

Food

8.8

Reviews

1 / 7
10.0
Excellent

ltulagan,Jun 2025

TPE - SEA

The whole trip was very pleasant from the crew, the food, the amenities during the flight.

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 Delta ($442), Korean Air ($445), and China Airlines ($503).

  • 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 $391). 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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
Asiana AirlinesCheapest$852Average$923FlexibilityNo cancel feeOn-time76%

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