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$435+ 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 11/20. Fares are subject to change and may not be available on all flights or dates of travel.
OSA — SEA
ago. 9 — ago. 161
sáb. 8/9
sáb. 8/16
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 agosto 4, 2025.

Round-trip from

$731
(Kiwi.com)

One-way from

$435
(Mytrip)

Popular in

September

Cheapest in

May

Average price

$1,065
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. 9% potential increase in price ($95 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($16 potential savings vs. average RT price).
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Average for round-trip flights in August 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 agosto 4, 2025.

This Kiwi.com deal was found by Cheapflights users on 8/4. 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.
jue. 9/184:00 pmKIX - SEA
1 stop14h 45mMultiple Airlines
jue. 9/252:50 pmSEA - KIX
1 stop16h 00mMultiple Airlines
Deal found 8/4$731
This Philippine Airlines deal was found by Cheapflights users on 8/4. 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.
vie. 9/1910:20 amKIX - SEA
1 stop24h 55mPhilippine Airlines
mié. 9/2411:35 pmSEA - KIX
1 stop28h 05mPhilippine Airlines
Deal found 8/4$769
This FlightHub deal was found by Cheapflights users on 8/3. 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.
jue. 8/219:10 amKIX - SEA
1 stop19h 35mAsiana Airlines
lun. 9/82:15 pmSEA - KIX
1 stop14h 50mAsiana Airlines
Deal found 8/3$788
This Trip.com deal was found by Cheapflights users on 8/4. 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.
jue. 9/41:25 pmKIX - SEA
1 stop18h 45mSTARLUX Airlines
mié. 9/101:15 amSEA - KIX
1 stop19h 00mSTARLUX Airlines
Deal found 8/4$794
This Korean Air deal was found by Cheapflights users on 8/3. 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.
jue. 9/1112:35 pmKIX - PDX
2 stops18h 17mKorean Air
lun. 9/155:01 pmPDX - KIX
2 stops26h 19mKorean Air
Deal found 8/3$832
This Air Canada deal was found by Cheapflights users on 8/2. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 9/116:05 pmKIX - PDX
1 stop20h 56mAir Canada
lun. 9/1510:00 amPDX - KIX
1 stop14h 25mAir Canada
Deal found 8/2$869
This oojo deal was found by Cheapflights users on 8/2. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 9/171:10 pmKIX - SEA
1 stop22h 20mEVA Air
vie. 9/261:30 amSEA - KIX
1 stop18h 40mEVA Air
Deal found 8/2$904
This oojo deal was found by Cheapflights users on 8/3. 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.
mié. 8/201:10 pmKIX - SEA
2 stops34h 57mChina Airlines
mar. 9/21:40 amSEA - KIX
1 stop24h 25mChina Airlines
Deal found 8/3$920
This STARLUX Airlines deal was found by Cheapflights users on 8/3. 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 STARLUX Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/172:00 pmKIX - PDX
2 stops21h 53mSTARLUX Airlines
vie. 12/267:39 pmPDX - KIX
2 stops22h 31mSTARLUX Airlines
Deal found 8/3$969
This Gurufare deal was found by Cheapflights users on 8/4. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 8/209:10 amKIX - SEA
2 stops30h 25mCathay Pacific
mié. 9/311:37 amSEA - KIX
2 stops27h 03mCathay Pacific
Deal found 8/4$1,043
This oojo deal was found by Cheapflights users on 8/3. 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.
jue. 12/1812:55 pmKIX - PDX
2 stops25h 16mEVA Air
vie. 12/269:50 pmPDX - KIX
2 stops43h 05mEVA Air
Deal found 8/3$1,043
This FlightHub deal was found by Cheapflights users on 8/3. 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.
mié. 12/175:00 pmKIX - PDX
2 stops18h 41mAsiana Airlines
sáb. 12/277:45 pmPDX - KIX
2 stops20h 55mAsiana Airlines
Deal found 8/3$1,113

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 agosto 4, 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

jue. 9/18

4:00 pm-2:45 pm

1 stop14h 45m

Seattle/Tacoma Intl

jue. 9/25

2:50 pm-10:50 pm

1 stop16h 00m

$731

OsakaSeattle

KIX - SEA

KIXSEA

Osaka Kansai Intl

vie. 9/19

10:20 am-7:15 pm

1 stop24h 55m

Seattle/Tacoma Intl

mié. 9/24

11:35 pm-7:40 pm

1 stop28h 05m

$769

OsakaSeattle

KIX - SEA

KIXSEA

Osaka Kansai Intl

jue. 8/21

9:10 am-12:45 pm

1 stop19h 35m

Seattle/Tacoma Intl

lun. 9/8

2:15 pm-9:05 pm

1 stop14h 50m

$788

OsakaSeattle

KIX - SEA

KIXSEA

Osaka Kansai Intl

jue. 9/4

1:25 pm-4:10 pm

1 stop18h 45m

Seattle/Tacoma Intl

mié. 9/10

1:15 am-12:15 pm

1 stop19h 00m

$794

OsakaPortland

KIX - PDX

KIXPDX

Osaka Kansai Intl

jue. 9/11

12:35 pm-2:52 pm

2 stops18h 17m

Portland

lun. 9/15

5:01 pm-11:20 am

2 stops26h 19m

$832

OsakaPortland

KIX - PDX

KIXPDX

Osaka Kansai Intl

jue. 9/11

6:05 pm-11:01 pm

1 stop20h 56m

Portland

lun. 9/15

10:00 am-4:25 pm

1 stop14h 25m

$869

OsakaSeattle

KIX - SEA

KIXSEA

Osaka Kansai Intl

mié. 9/17

1:10 pm-7:30 pm

1 stop22h 20m

Seattle/Tacoma Intl

vie. 9/26

1:30 am-12:10 pm

1 stop18h 40m

$904

OsakaSeattle

KIX - SEA

KIXSEA

Osaka Kansai Intl

mié. 8/20

1:10 pm-8:07 am

2 stops34h 57m

Seattle/Tacoma Intl

mar. 9/2

1:40 am-6:05 pm

1 stop24h 25m

$920

OsakaPortland

KIX - PDX

KIXPDX

Osaka Kansai Intl

mié. 12/17

2:00 pm-6:53 pm

2 stops21h 53m

Portland

vie. 12/26

7:39 pm-11:10 am

2 stops22h 31m

$969

OsakaSeattle

KIX - SEA

KIXSEA

Osaka Kansai Intl

mié. 8/20

9:10 am-11:35 pm

2 stops30h 25m

Seattle/Tacoma Intl

mié. 9/3

11:37 am-6:40 am

2 stops27h 03m

$1,043

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/4

Showing 1-10 of 60 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 agosto 4, 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.

How much does it cost to fly round-trip from Osaka to State of Washington?

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 agosto 4, 2025.
See what other customers who have flown with STARLUX Airlines, EVA Air, and Korean Air from Osaka to Washington have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
STARLUX Airlines
9.0
Wonderful
199 reviews

Boarding

9.0

Comfort

8.9

Entertainment

8.9

Food

8.8

Crew

9.3

Overall

9.0

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
9.0
Wonderful
199 reviews
STARLUX Airlines
9.0
Wonderful
199 reviews

Boarding

9.0

Comfort

8.9

Entertainment

8.9

Food

8.8

Crew

9.3

Overall

9.0

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
1,224 reviews
STARLUX Airlines
9.0
Wonderful
199 reviews

Boarding

9.0

Comfort

8.9

Entertainment

8.9

Food

8.8

Crew

9.3

Overall

9.0

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
1,122 reviews
STARLUX Airlines
9.0
Wonderful
199 reviews

Boarding

9.0

Comfort

8.9

Entertainment

8.9

Food

8.8

Crew

9.3

Overall

9.0

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.
ANA
8.4
Very good
923 reviews
STARLUX Airlines
9.0
Wonderful
199 reviews

Boarding

9.0

Comfort

8.9

Entertainment

8.9

Food

8.8

Crew

9.3

Overall

9.0

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
1,543 reviews
STARLUX Airlines
9.0
Wonderful
199 reviews

Boarding

9.0

Comfort

8.9

Entertainment

8.9

Food

8.8

Crew

9.3

Overall

9.0

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 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 June is currently the most expensive (average of $388). 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 agosto 4, 2025.
AirlineCheapestAverageFlexibilityOn-time
Asiana AirlinesCheapest$852Average$926FlexibilityNo cancel feeOn-time76%

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