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$362+ 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 3/9. Fares are subject to change and may not be available on all flights or dates of travel.
OSA — SEA
Feb 13 — Feb 201
Fri 2/13
Fri 2/20
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 January 14, 2026.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$595
(Alaska Airlines)

One-way from

$362
(Kiwi.com)

Popular in

September

Cheapest in

May
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. 9% potential increase in price ($94 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($22 potential savings vs. average RT price).
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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 January 14, 2026.

This Alaska Airlines deal was found by Cheapflights users on 1/13. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/238:45 pm
KIX
-
SEA
1 stop17h 00m
Multiple Airlines
Wed 9/168:00 am
SEA
-
KIX
1 stop18h 45m
Multiple Airlines
Deal found 1/13$595
This Flightnetwork deal was found by Cheapflights users on 1/11. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/256:00 pm
KIX
-
SEA
1 stop31h 17m
Air Canada
Tue 9/17:20 pm
SEA
-
KIX
1 stop29h 05m
Air Canada
Deal found 1/11$625
This Bravofly deal was found by Cheapflights users on 1/14. 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 Bravofly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/197:25 pm
KIX
-
SEA
1 stop35h 30m
Asiana Airlines
Sun 3/2912:55 am
SEA
-
KIX
1 stop25h 10m
Asiana Airlines
Deal found 1/14$634
This Hawaiian Airlines deal was found by Cheapflights users on 1/12. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/198:45 pm
KIX
-
PDX
1 stop18h 05m
Alaska Airlines
Mon 10/267:20 am
PDX
-
KIX
1 stop19h 25m
Alaska Airlines
Deal found 1/12$656
This Air Canada deal was found by Cheapflights users on 1/14. 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.
Mon 6/86:00 pm
KIX
-
SEA
1 stop20h 20m
Air Canada
Wed 9/29:55 am
SEA
-
KIX
1 stop14h 30m
Air Canada
Deal found 1/14$657
This Orbitz deal was found by Cheapflights users on 1/13. 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.
Tue 9/296:05 pm
KIX
-
SEA
1 stop16h 31m
Air Canada
Mon 10/510:00 am
SEA
-
KIX
1 stop14h 25m
Air Canada
Deal found 1/13$661
This Air Canada deal was found by Cheapflights users on 1/12. 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 6/236:00 pm
KIX
-
SEA
1 stop16h 32m
Air Canada
Wed 9/165:40 am
SEA
-
KIX
1 stop18h 45m
Air Canada
Deal found 1/12$664
This Korean Air deal was found by Cheapflights users on 1/12. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/169:05 am
KIX
-
PDX
2 stops29h 21m
Korean Air
Thu 10/229:40 am
PDX
-
KIX
2 stops19h 20m
Korean Air
Deal found 1/12$672
This Trip.com deal was found by Cheapflights users on 1/14. 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.
Wed 3/182:00 pm
KIX
-
SEA
1 stop16h 55m
Multiple Airlines
Sun 3/2912:55 am
SEA
-
KIX
1 stop25h 10m
Multiple Airlines
Deal found 1/14$673
This Hawaiian Airlines deal was found by Cheapflights users on 1/12. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/188:45 pm
KIX
-
PDX
1 stop18h 05m
Alaska Airlines
Sun 10/2510:35 am
PDX
-
KIX
1 stop16h 10m
Alaska Airlines
Deal found 1/12$682
This Hawaiian Airlines deal was found by Cheapflights users on 1/12. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/198:45 pm
KIX
-
PDX
1 stop18h 05m
Alaska Airlines
Sun 10/2510:35 am
PDX
-
KIX
1 stop16h 10m
Alaska Airlines
Deal found 1/12$687
This Korean Air deal was found by Cheapflights users on 1/14. 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.
Wed 6/1012:35 pm
KIX
-
SEA
1 stop14h 15m
Korean Air
Wed 9/212:50 pm
SEA
-
KIX
1 stop16h 10m
Korean Air
Deal found 1/14$688

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 January 14, 2026.
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

Tue 6/23

8:45 pm-9:45 pm

1 stop17h 00m

Seattle/Tacoma Intl

Wed 9/16

8:00 am-6:45 pm

1 stop18h 45m

$595

OsakaSeattle

KIX - SEA

KIXSEA

Osaka Kansai Intl

Mon 6/8

6:00 pm-10:20 pm

1 stop20h 20m

Seattle/Tacoma Intl

Wed 9/2

9:55 am-4:25 pm

1 stop14h 30m

$657

OsakaSeattle

KIX - SEA

KIXSEA

Osaka Kansai Intl

Tue 6/9

6:00 pm-2:20 pm

1 stop12h 20m

Seattle/Tacoma Intl

Wed 9/2

5:40 am-4:25 pm

1 stop18h 45m

$657

OsakaSeattle

KIX - SEA

KIXSEA

Osaka Kansai Intl

Tue 6/23

6:00 pm-6:32 pm

1 stop16h 32m

Seattle/Tacoma Intl

Wed 9/16

5:40 am-4:25 pm

1 stop18h 45m

$664

OsakaSeattle

KIX - SEA

KIXSEA

Osaka Kansai Intl

Tue 6/9

6:20 pm-10:50 am

1 stop32h 30m

Seattle/Tacoma Intl

Thu 9/3

12:50 pm-9:00 pm

1 stop16h 10m

$688

OsakaSeattle

KIX - SEA

KIXSEA

Osaka Kansai Intl

Wed 6/10

9:05 am-10:50 am

1 stop17h 45m

Seattle/Tacoma Intl

Tue 9/1

12:50 pm-9:00 pm

1 stop16h 10m

$688

OsakaSeattle

KIX - SEA

KIXSEA

Osaka Kansai Intl

Wed 6/10

9:05 am-10:50 am

1 stop17h 45m

Seattle/Tacoma Intl

Mon 9/7

12:50 pm-9:00 pm

1 stop16h 10m

$688

OsakaSeattle

KIX - SEA

KIXSEA

Osaka Kansai Intl

Wed 6/10

12:35 pm-10:50 am

1 stop14h 15m

Seattle/Tacoma Intl

Fri 9/4

12:50 pm-9:00 pm

1 stop16h 10m

$750

OsakaSeattle

KIX - SEA

KIXSEA

Osaka Kansai Intl

Wed 4/29

7:25 pm-2:55 pm

1 stop35h 30m

Seattle/Tacoma Intl

Mon 5/4

12:55 am-6:05 pm

1 stop25h 10m

$766

OsakaSeattle

KIX - SEA

KIXSEA

Osaka Kansai Intl

Thu 2/26

9:00 am-9:00 am

1 stop17h 00m

Seattle/Tacoma Intl

Thu 3/5

11:00 am-5:00 pm

1 stop37h 00m

$800

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/13

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
No data available for this route at this time. Please check back soon.

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 January 14, 2026.
See what other customers who have flown with STARLUX Airlines and ANA 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
8.9
Very good
262 reviews

Entertainment

8.8

Comfort

8.8

Boarding

8.9

Food

8.7

Crew

9.1

Overall

8.9

Reviews

1 / 10
10.0
Excellent

Anonymous,Jan 2026

SEA - TPE

First time travelled with starlux and had best experience. Food was really good and crew is the best. Entertainment was also best. Having latest movies. I requested for isle seat at the last time and they provided me. Best airline service.
STARLUX Airlines
8.9
Very good
262 reviews
STARLUX Airlines
8.9
Very good
262 reviews

Entertainment

8.8

Comfort

8.8

Boarding

8.9

Food

8.7

Crew

9.1

Overall

8.9

Reviews

1 / 10
10.0
Excellent

Anonymous,Jan 2026

SEA - TPE

First time travelled with starlux and had best experience. Food was really good and crew is the best. Entertainment was also best. Having latest movies. I requested for isle seat at the last time and they provided me. Best airline service.
ANA
8.4
Very good
1,069 reviews
STARLUX Airlines
8.9
Very good
262 reviews

Entertainment

8.8

Comfort

8.8

Boarding

8.9

Food

8.7

Crew

9.1

Overall

8.9

Reviews

1 / 10
10.0
Excellent

Anonymous,Jan 2026

SEA - TPE

First time travelled with starlux and had best experience. Food was really good and crew is the best. Entertainment was also best. Having latest movies. I requested for isle seat at the last time and they provided me. Best airline service.

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.

  • How long is the flight from Osaka to State of Washington?

    There are many flights that can get you from Osaka to State of Washington in 20h 20m. Fly via Air Canada or Korean Air to get the fastest option. Osaka and State of Washington are separated by a distance of 5024 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • 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 EVA Air ($309), Korean Air ($420), and Air Canada ($424).

  • 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.

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