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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 5/13. Fares are subject to change and may not be available on all flights or dates of travel.
OSA — SEA
Apr 7 — Apr 141
Mon 4/7
Mon 4/14
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 2, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$709
(Mytrip)

One-way from

$420
(Kiwi.com)

Popular in

August

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. 14% potential increase in price ($167 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($19 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 2, 2025.

This Mytrip deal was found by Cheapflights users on 4/1. 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.
Sat 5/101:35 pmKIX - SEA
2 stops35h 43mMultiple Airlines
Sat 5/175:35 amSEA - KIX
2 stops22h 55mMultiple Airlines
Deal found 4/1$709
This Orbitz deal was found by Cheapflights users on 4/1. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/166:05 pmKIX - PDX
1 stop16h 40mAir Canada
Mon 6/306:15 amPDX - KIX
1 stop18h 10mAir Canada
Deal found 4/1$813
This oojo deal was found by Cheapflights users on 4/1. 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.
Sat 5/101:25 pmKIX - SEA
1 stop18h 45mSTARLUX Airlines
Fri 5/161:15 amSEA - KIX
1 stop19h 00mSTARLUX Airlines
Deal found 4/1$905
This Gotogate deal was found by Cheapflights users on 4/2. 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.
Fri 5/910:20 amKIX - SEA
1 stop24h 55mPhilippine Airlines
Fri 5/1611:35 pmSEA - KIX
1 stop28h 05mPhilippine Airlines
Deal found 4/2$975
This oojo deal was found by Cheapflights users on 4/1. 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.
Sun 8/37:05 pmKIX - SEA
1 stop16h 40mChina Airlines
Sat 8/231:40 amSEA - KIX
1 stop18h 20mChina Airlines
Deal found 4/1$986
This FlightHub deal was found by Cheapflights users on 3/31. 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 7/910:50 amKIX - SEA
1 stop17h 55mAsiana Airlines
Tue 7/222:30 pmSEA - KIX
1 stop27h 10mAsiana Airlines
Deal found 3/31$1,004
This Cheapflightsfares deal was found by Cheapflights users on 4/2. 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.
Sun 8/35:30 pmKIX - SEA
1 stop12h 55mANA
Sun 8/244:30 pmSEA - KIX
1 stop13h 20mANA
Deal found 4/2$1,024
This EVA Air deal was found by Cheapflights users on 4/1. 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 EVA Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/1411:10 amKIX - SEA
1 stop24h 20mEVA Air
Fri 7/112:10 amSEA - KIX
1 stop18h 00mEVA Air
Deal found 4/1$1,119
This Mytrip deal was found by Cheapflights users on 4/1. 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 6/168:55 pmKIX - PDX
3 stops38h 25mMultiple Airlines
Mon 6/3012:42 pmPDX - KIX
2 stops30h 38mMultiple Airlines
Deal found 4/1$1,141
This Delta deal was found by Cheapflights users on 4/1. 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 8/2112:35 pmKIX - SEA
2 stops27h 23mDelta
Mon 9/812:45 pmSEA - KIX
1 stop30h 35mDelta
Deal found 4/1$1,247
This Air Canada deal was found by Cheapflights users on 4/1. 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.
Wed 8/202:05 pmITM - SEA
2 stops14h 56mMultiple Airlines
Wed 9/310:00 amSEA - ITM
2 stops16h 55mMultiple Airlines
Deal found 4/1$1,361
This Ovago deal was found by Cheapflights users on 4/1. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/212:35 pmITM - SEA
1 stop12h 00mJapan Airlines
Mon 9/87:15 amSEA - ITM
2 stops18h 20mJapan Airlines
Deal found 4/1$1,385

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 2, 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

Sat 5/10

1:35 pm-9:18 am

2 stops35h 43m

Seattle/Tacoma Intl

Sat 5/17

5:35 am-8:30 pm

2 stops22h 55m

$709

OsakaPortland

KIX - PDX

KIXPDX

Osaka Kansai Intl

Mon 6/16

6:05 pm-6:45 pm

1 stop16h 40m

Portland

Mon 6/30

6:15 am-4:25 pm

1 stop18h 10m

$813

OsakaSeattle

KIX - SEA

KIXSEA

Osaka Kansai Intl

Sat 5/10

1:25 pm-4:10 pm

1 stop18h 45m

Seattle/Tacoma Intl

Fri 5/16

1:15 am-12:15 pm

1 stop19h 00m

$905

OsakaSeattle

KIX - SEA

KIXSEA

Osaka Kansai Intl

Sun 8/3

7:05 pm-7:45 pm

1 stop16h 40m

Seattle/Tacoma Intl

Sat 8/23

1:40 am-12:00 pm

1 stop18h 20m

$986

OsakaSeattle

KIX - SEA

KIXSEA

Osaka Kansai Intl

Wed 7/9

10:50 am-12:45 pm

1 stop17h 55m

Seattle/Tacoma Intl

Tue 7/22

2:30 pm-9:40 am

1 stop27h 10m

$1,004

OsakaSeattle

KIX - SEA

KIXSEA

Osaka Kansai Intl

Sat 6/14

11:10 am-7:30 pm

1 stop24h 20m

Seattle/Tacoma Intl

Fri 7/11

2:10 am-12:10 pm

1 stop18h 00m

$1,119

OsakaPortland

KIX - PDX

KIXPDX

Osaka Kansai Intl

Mon 6/16

8:55 pm-7:20 pm

3 stops38h 25m

Portland

Mon 6/30

12:42 pm-11:20 am

2 stops30h 38m

$1,141

OsakaSeattle

KIX - SEA

KIXSEA

Osaka Kansai Intl

Thu 8/21

12:35 pm-11:58 pm

2 stops27h 23m

Seattle/Tacoma Intl

Mon 9/8

12:45 pm-11:20 am

1 stop30h 35m

$1,247

OsakaSeattle

ITM - SEA

ITMSEA

Osaka Itami

Wed 8/20

2:05 pm-1:01 pm

2 stops14h 56m

Seattle/Tacoma Intl

Wed 9/3

10:00 am-6:55 pm

2 stops16h 55m

$1,361

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 4/1

Showing 1-10 of 46 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 2, 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 2, 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
146 reviews

Crew

9.3

Entertainment

9.0

Comfort

9.0

Food

8.9

Boarding

9.0

Overall

9.1

Reviews

1 / 5
10.0
Excellent

Andrew,Jan 2025

LAX - TPE

Crew were attentive from start to finish. Each meal was amazing. IFE screen was huge and had quite a bit of western movies, however the tv shows were lacking.
STARLUX Airlines
9.1
Wonderful
146 reviews
STARLUX Airlines
9.1
Wonderful
146 reviews

Crew

9.3

Entertainment

9.0

Comfort

9.0

Food

8.9

Boarding

9.0

Overall

9.1

Reviews

1 / 5
10.0
Excellent

Andrew,Jan 2025

LAX - TPE

Crew were attentive from start to finish. Each meal was amazing. IFE screen was huge and had quite a bit of western movies, however the tv shows were lacking.
EVA Air
8.4
Very good
1,170 reviews
STARLUX Airlines
9.1
Wonderful
146 reviews

Crew

9.3

Entertainment

9.0

Comfort

9.0

Food

8.9

Boarding

9.0

Overall

9.1

Reviews

1 / 5
10.0
Excellent

Andrew,Jan 2025

LAX - TPE

Crew were attentive from start to finish. Each meal was amazing. IFE screen was huge and had quite a bit of western movies, however the tv shows were lacking.
Korean Air
8.4
Very good
1,051 reviews
STARLUX Airlines
9.1
Wonderful
146 reviews

Crew

9.3

Entertainment

9.0

Comfort

9.0

Food

8.9

Boarding

9.0

Overall

9.1

Reviews

1 / 5
10.0
Excellent

Andrew,Jan 2025

LAX - TPE

Crew were attentive from start to finish. Each meal was amazing. IFE screen was huge and had quite a bit of western movies, however the tv shows were lacking.
Japan Airlines
8.3
Very good
1,440 reviews
STARLUX Airlines
9.1
Wonderful
146 reviews

Crew

9.3

Entertainment

9.0

Comfort

9.0

Food

8.9

Boarding

9.0

Overall

9.1

Reviews

1 / 5
10.0
Excellent

Andrew,Jan 2025

LAX - TPE

Crew were attentive from start to finish. Each meal was amazing. IFE screen was huge and had quite a bit of western movies, however the tv shows were lacking.
ANA
8.3
Very good
830 reviews
STARLUX Airlines
9.1
Wonderful
146 reviews

Crew

9.3

Entertainment

9.0

Comfort

9.0

Food

8.9

Boarding

9.0

Overall

9.1

Reviews

1 / 5
10.0
Excellent

Andrew,Jan 2025

LAX - TPE

Crew were attentive from start to finish. Each meal was amazing. IFE screen was huge and had quite a bit of western movies, however the tv shows were lacking.

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 China Airlines ($489), Philippine Airlines ($520), and Asiana Airlines ($583).

  • 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 3 airlines flying from Osaka to Washington

Discover the top 3 airlines 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 2, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$838Average$1,344FlexibilityNo cancel feeOn-time67%
Asiana AirlinesCheapest$852Average$926FlexibilityNo cancel feeOn-time76%
ANACheapest$1,863Average$1,863FlexibilityNo cancel feeOn-time80%

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