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$510+ Cheap flights from Santa Rosa (STS) to Osaka (OSA)

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 11/16. Fares are subject to change and may not be available on all flights or dates of travel.
STS — OSA
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheap flight deals from Santa Rosa to Osaka

Discover tips and strategies to find the most affordable flight options for your journey from Santa Rosa (STS) to Osaka (OSA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated September 11, 2025.

Round-trip from

$1,028
(Japan Airlines)

One-way from

$510
(Alaska Airlines)

Popular in

December

Cheapest in

January

Average price

$859
From Santa Rosa Sonoma County to Osaka (OSA)
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One-way flight from Santa Rosa Sonoma County to Osaka (OSA)
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Highest demand for flights based on searches. 8% potential increase in price ($99 potential increase over avg. RT price).
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Cheapest flight prices on average. 6% potential price decrease ($64 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Santa Rosa to Osaka

Cheapest flights from Santa Rosa to Osaka
Explore the most affordable flight options available from Santa Rosa to Osaka. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

This Alaska Airlines deal was found by Cheapflights users on 9/10. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/142:28 pmSTS - ITM
2 stops37h 17mAlaska Airlines
Thu 9/182:35 pmITM - STS
2 stops21h 48mAlaska Airlines
Deal found 9/10$953
This Alaska Airlines deal was found by Cheapflights users on 9/11. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/197:03 amSTS - KIX
2 stops19h 42mAlaska Airlines
Thu 12/188:45 pmKIX - STS
2 stops20h 33mAlaska Airlines
Deal found 9/11$1,189
This Alaska Airlines deal was found by Cheapflights users on 9/11. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/197:03 amSTS - KIX
2 stops19h 42mAlaska Airlines
Fri 12/198:45 pmKIX - STS
2 stops20h 33mAlaska Airlines
Deal found 9/11$1,198
This Japan Airlines deal was found by Cheapflights users on 9/10. 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 Japan Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/27:45 amSTS - KIX
1 stop18h 05mJapan Airlines
Tue 11/115:50 pmKIX - STS
1 stop17h 04mJapan Airlines
Deal found 9/10$1,263
This Japan Airlines deal was found by Cheapflights users on 9/9. 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 Japan Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/17:45 amSTS - KIX
1 stop19h 05mJapan Airlines
Tue 11/115:50 pmKIX - STS
1 stop17h 04mJapan Airlines
Deal found 9/9$1,346
This Japan Airlines deal was found by Cheapflights users on 9/9. 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 Japan Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/27:45 amSTS - ITM
2 stops19h 05mJapan Airlines
Wed 11/124:30 pmITM - STS
2 stops18h 24mJapan Airlines
Deal found 9/9$1,379
This Japan Airlines deal was found by Cheapflights users on 9/10. 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 Japan Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/27:45 amSTS - ITM
2 stops19h 30mJapan Airlines
Tue 11/114:45 pmITM - STS
2 stops18h 09mJapan Airlines
Deal found 9/10$1,429
This Japan Airlines deal was found by Cheapflights users on 9/11. 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 Japan Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/197:03 amSTS - KIX
1 stop19h 42mJapan Airlines
Thu 12/185:50 pmKIX - STS
1 stop14h 23mJapan Airlines
Deal found 9/11$1,501
This Japan Airlines deal was found by Cheapflights users on 9/10. 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 Japan Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/97:45 amSTS - KIX
1 stop18h 05mJapan Airlines
Thu 11/135:50 pmKIX - STS
1 stop17h 04mJapan Airlines
Deal found 9/10$1,613
This Japan Airlines deal was found by Cheapflights users on 9/9. 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 Japan Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/27:45 amSTS - KIX
1 stop18h 05mJapan Airlines
Wed 11/125:50 pmKIX - STS
1 stop17h 04mJapan Airlines
Deal found 9/9$1,648
This Japan Airlines deal was found by Cheapflights users on 9/9. 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 Japan Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/17:45 amSTS - ITM
2 stops19h 30mJapan Airlines
Wed 11/123:30 pmITM - STS
2 stops19h 24mJapan Airlines
Deal found 9/9$1,800
This Japan Airlines deal was found by Cheapflights users on 9/11. 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 Japan Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/197:03 amSTS - KIX
1 stop19h 42mJapan Airlines
Sat 12/205:50 pmKIX - STS
1 stop14h 23mJapan Airlines
Deal found 9/11$1,926

Cheapflights Fare Finder

 
Customize your flight search to find flights from Santa Rosa to Osaka 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 September 11, 2025.
Use the filters below to find and compare flights from Santa Rosa to Osaka that are best for you.

Fly from

Santa Rosa

Fly to

Osaka

Route

Depart

Return

Price

Santa RosaOsaka

STS - KIX

STSKIX

Santa Rosa Sonoma County

Thu 1/8

8:00 am-6:50 pm

1 stop17h 50m

Osaka Kansai Intl

Fri 1/23

5:50 pm-10:35 pm

1 stop21h 45m

$1,028

Santa RosaOsaka

STS - KIX

STSKIX

Santa Rosa Sonoma County

Fri 1/9

8:00 am-6:50 pm

1 stop17h 50m

Osaka Kansai Intl

Fri 1/23

5:50 pm-10:35 pm

1 stop21h 45m

$1,028

Santa RosaOsaka

STS - KIX

STSKIX

Santa Rosa Sonoma County

Sun 11/2

7:45 am-6:50 pm

1 stop18h 05m

Osaka Kansai Intl

Tue 11/11

5:50 pm-5:54 pm

1 stop17h 04m

$1,263

Santa RosaOsaka

STS - KIX

STSKIX

Santa Rosa Sonoma County

Sat 11/1

7:45 am-6:50 pm

1 stop19h 05m

Osaka Kansai Intl

Tue 11/11

5:50 pm-5:54 pm

1 stop17h 04m

$1,346

Santa RosaOsaka

STS - ITM

STSITM

Santa Rosa Sonoma County

Sun 11/2

7:45 am-8:15 pm

2 stops19h 30m

Osaka Itami

Wed 11/12

4:45 pm-5:54 pm

2 stops18h 09m

$1,379

Santa RosaOsaka

STS - ITM

STSITM

Santa Rosa Sonoma County

Sun 11/2

7:45 am-8:15 pm

2 stops19h 30m

Osaka Itami

Tue 11/11

4:45 pm-5:54 pm

2 stops18h 09m

$1,429

Santa RosaOsaka

STS - KIX

STSKIX

Santa Rosa Sonoma County

Fri 2/13

8:00 am-10:20 pm

2 stops21h 20m

Osaka Kansai Intl

Sun 2/22

5:50 pm-10:35 pm

1 stop21h 45m

$1,453

Santa RosaOsaka

STS - KIX

STSKIX

Santa Rosa Sonoma County

Sun 11/9

7:45 am-6:50 pm

1 stop18h 05m

Osaka Kansai Intl

Thu 11/13

5:50 pm-5:54 pm

1 stop17h 04m

$1,613

Santa RosaOsaka

STS - ITM

STSITM

Santa Rosa Sonoma County

Fri 2/13

8:00 am-8:30 pm

2 stops19h 30m

Osaka Itami

Sun 2/22

2:40 pm-9:58 pm

2 stops24h 18m

$1,721

Santa RosaOsaka

STS - ITM

STSITM

Santa Rosa Sonoma County

Sat 11/1

7:45 am-7:15 pm

2 stops19h 30m

Osaka Itami

Wed 11/12

3:30 pm-5:54 pm

2 stops19h 24m

$1,800

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/9

Showing 1-10 of 39 results
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Best time to book a flight from Santa Rosa to Osaka

Have a flexible travel schedule? Discover the best time to fly to Osaka from Santa Rosa 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 Santa Rosa to Osaka

What is the cheapest month to book a flight from Santa Rosa to Osaka?

Currently, February is the cheapest month in which you can book a flight from Santa Rosa to Osaka (average of $866). Flying from Santa Rosa to Osaka in June is currently the most expensive (average of $1,310). 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.

Related info for your journey

Find useful and relevant information for your journey from Santa Rosa to Osaka. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Santa Rosa to Osaka?

    Most people fly from Santa Rosa Sonoma County (STS) if they book a flight from Santa Rosa to Osaka. On average, Sonoma County has 0 outbound flights to Osaka per day from 0 airlines. Santa Rosa Sonoma County is conveniently located just 7.2 mi from Santa Rosa’s city center.

  • How long is the flight from Santa Rosa to Osaka?

    A quick flight from Santa Rosa to Osaka can take about 17h 50m. Japan Airlines provides one of the quickest options available for as low as $1,028. Airlines will cover a distance of 5343 mi.

  • What are the cheapest airlines to fly from Santa Rosa to Osaka one-way?

    $510 is the cheapest one-way deal found within the past few days, from Alaska Airlines. You may also be able to find cheap deals on Japan Airlines and American Airlines, with prices starting from $557 and $671, respectively.

  • Can I find deals for flights from Santa Rosa to Osaka that include hotel bookings?

    Yes. In addition to deals on Santa Rosa to Osaka flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Santa Rosa to Osaka?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Santa Rosa to Osaka.

  • Can I find deals for business class flights from Santa Rosa to Osaka?

    Yes. Cheapflights offers flight deals from Santa Rosa to Osaka 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 Santa Rosa to Osaka?

    Currently, February is the cheapest month in which you can book a flight from Santa Rosa to Osaka (average of $866). Flying from Santa Rosa to Osaka in June is currently the most expensive (average of $1,310). 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

Traveling to a place near Osaka?

Book flights to Osaka if you plan to visit one of these locations
Nara
Nishinomiya

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