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$341+ 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 12/14. Fares are subject to change and may not be available on all flights or dates of travel.
OSA — SEA
dic. 26 — ene. 21
vie. 12/26
vie. 1/2
1 adult, Economy
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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 noviembre 26, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 11/25. 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.
mié. 12/247:00 amKIX - SEA
1 stop20h 35mAlaska Airlines
jue. 1/87:00 amSEA - KIX
1 stop18h 45mAlaska Airlines
Deal found 11/25$655
This Gotogate deal was found by Cheapflights users on 11/25. 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.
lun. 12/156:10 pmKIX - SEA
1 stop31h 50mKorean Air
dom. 3/2212:00 pmSEA - KIX
1 stop30h 45mKorean Air
Deal found 11/25$711
This Trip.com deal was found by Cheapflights users on 11/25. 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.
lun. 12/1512:20 pmKIX - SEA
1 stop19h 45mSTARLUX Airlines
sáb. 3/2112:45 amSEA - KIX
1 stop18h 25mSTARLUX Airlines
Deal found 11/25$774
This Flightnetwork deal was found by Cheapflights users on 11/25. 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.
lun. 12/157:10 pmKIX - SEA
2 stops41h 06mMultiple Airlines
dom. 3/223:40 pmSEA - KIX
1 stop34h 00mMultiple Airlines
Deal found 11/25$782
This Gotogate deal was found by Cheapflights users on 11/25. 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.
mié. 12/2410:50 amKIX - SEA
2 stops28h 56mMultiple Airlines
jue. 1/85:50 amSEA - KIX
2 stops21h 45mMultiple Airlines
Deal found 11/25$783
This oojo deal was found by Cheapflights users on 11/24. 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.
lun. 12/2212:55 pmKIX - SEA
1 stop22h 15mEVA Air
dom. 12/2812:10 amSEA - KIX
1 stop18h 45mEVA Air
Deal found 11/24$820
This Asiana Airlines deal was found by Cheapflights users on 11/25. 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 Asiana Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 12/2510:30 amKIX - SEA
1 stop20h 25mAsiana Airlines
lun. 12/2912:10 amSEA - KIX
1 stop15h 40mAsiana Airlines
Deal found 11/25$858
This FlightHub deal was found by Cheapflights users on 11/25. 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. 12/247:25 pmKIX - SEA
1 stop35h 30mAsiana Airlines
mié. 1/712:10 amSEA - KIX
1 stop15h 40mAsiana Airlines
Deal found 11/25$870
This Mytrip deal was found by Cheapflights users on 11/25. 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.
mié. 12/2412:30 pmITM - SEA
2 stops19h 01mMultiple Airlines
jue. 1/812:30 pmSEA - ITM
1 stop14h 25mMultiple Airlines
Deal found 11/25$990
This Cheapflightsfares deal was found by Cheapflights users on 11/25. 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.
mié. 12/242:40 pmITM - SEA
1 stop12h 10mJapan Airlines
jue. 1/812:30 pmSEA - ITM
1 stop14h 25mJapan Airlines
Deal found 11/25$1,046
This Gotogate deal was found by Cheapflights users on 11/25. 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.
mié. 12/242:00 pmITM - SEA
2 stops17h 31mAir Canada
jue. 1/88:00 pmSEA - ITM
2 stops29h 55mAir Canada
Deal found 11/25$1,047
This Air Canada deal was found by Cheapflights users on 11/24. 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.
lun. 12/222:40 pmITM - SEA
2 stops16h 51mMultiple Airlines
lun. 12/298:00 pmSEA - ITM
2 stops29h 55mMultiple Airlines
Deal found 11/24$1,273

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 noviembre 26, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$655
(Cheapflightsfares)

One-way from

$341
(Kiwi.com)

Popular in

September

Cheapest in

May
Provider with most accurate pricing for Osaka (OSA)-Seattle/Tacoma Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Osaka (OSA)-Seattle/Tacoma Intl flights.
Search Deals
From Osaka (OSA) to Washington
Search Deals
One-way flight from Osaka (OSA) to Washington
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($88 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($21 potential savings vs. average RT price).
Search Deals

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 noviembre 26, 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

mié. 12/24

7:00 am-10:35 am

1 stop20h 35m

Seattle/Tacoma Intl

jue. 1/8

7:00 am-6:45 pm

1 stop18h 45m

$655

OsakaPortland

KIX - PDX

KIXPDX

Osaka Kansai Intl

vie. 1/23

11:55 am-12:17 am

2 stops29h 22m

Portland

mar. 2/3

7:10 am-8:45 pm

2 stops20h 35m

$710

OsakaPortland

KIX - PDX

KIXPDX

Osaka Kansai Intl

lun. 1/19

6:10 pm-6:50 pm

2 stops41h 40m

Portland

mar. 2/3

5:30 am-5:00 pm

2 stops42h 30m

$710

OsakaPortland

KIX - PDX

KIXPDX

Osaka Kansai Intl

jue. 1/22

6:10 pm-6:50 pm

2 stops41h 40m

Portland

mar. 2/3

9:20 am-8:45 pm

2 stops18h 25m

$710

OsakaPortland

KIX - PDX

KIXPDX

Osaka Kansai Intl

lun. 1/19

6:10 pm-6:50 pm

2 stops41h 40m

Portland

lun. 2/2

9:20 am-8:45 pm

2 stops18h 25m

$710

OsakaPortland

KIX - PDX

KIXPDX

Osaka Kansai Intl

mié. 1/21

11:55 am-12:44 pm

2 stops41h 49m

Portland

lun. 2/2

7:37 pm-12:50 pm

2 stops48h 13m

$710

OsakaPortland

KIX - PDX

KIXPDX

Osaka Kansai Intl

vie. 1/23

9:00 am-8:33 am

2 stops40h 33m

Portland

lun. 2/2

1:30 pm-5:00 pm

2 stops58h 30m

$710

OsakaPortland

KIX - PDX

KIXPDX

Osaka Kansai Intl

vie. 1/23

9:00 am-10:07 am

2 stops42h 07m

Portland

jue. 2/5

7:10 am-12:50 pm

2 stops36h 40m

$710

OsakaSeattle

KIX - SEA

KIXSEA

Osaka Kansai Intl

lun. 12/15

6:10 pm-9:00 am

1 stop31h 50m

Seattle/Tacoma Intl

dom. 3/22

12:00 pm-10:45 am

1 stop30h 45m

$711

OsakaPortland

KIX - PDX

KIXPDX

Osaka Kansai Intl

mié. 1/21

9:00 am-10:07 am

2 stops42h 07m

Portland

mié. 2/4

5:30 am-5:00 pm

2 stops42h 30m

$712

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/26

Showing 1-10 of 59 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 noviembre 26, 2025.

When flying from Osaka to State of Washington, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 39% versus a flight in the morning.

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 noviembre 26, 2025.
See what other customers who have flown with STARLUX Airlines, EVA Air, 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
235 reviews

Crew

9.2

Entertainment

8.9

Food

8.7

Boarding

9.0

Comfort

8.9

Overall

8.9

Reviews

1 / 9
10.0
Excellent

Chad,Nov 2025

TPE - SEA

Starlux Airlines was amazing. No complaints on anything with them
STARLUX Airlines
8.9
Very good
235 reviews
STARLUX Airlines
8.9
Very good
235 reviews

Crew

9.2

Entertainment

8.9

Food

8.7

Boarding

9.0

Comfort

8.9

Overall

8.9

Reviews

1 / 9
10.0
Excellent

Chad,Nov 2025

TPE - SEA

Starlux Airlines was amazing. No complaints on anything with them
EVA Air
8.4
Very good
1,284 reviews
STARLUX Airlines
8.9
Very good
235 reviews

Crew

9.2

Entertainment

8.9

Food

8.7

Boarding

9.0

Comfort

8.9

Overall

8.9

Reviews

1 / 9
10.0
Excellent

Chad,Nov 2025

TPE - SEA

Starlux Airlines was amazing. No complaints on anything with them
ANA
8.4
Very good
1,011 reviews
STARLUX Airlines
8.9
Very good
235 reviews

Crew

9.2

Entertainment

8.9

Food

8.7

Boarding

9.0

Comfort

8.9

Overall

8.9

Reviews

1 / 9
10.0
Excellent

Chad,Nov 2025

TPE - SEA

Starlux Airlines was amazing. No complaints on anything with them

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 35m. Fly via Alaska Airlines, Delta, 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 Hainan Airlines ($418), Alaska Airlines ($429), and Air Canada ($464).

  • 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.

See more FAQs

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