The cheapest times to fly from ITM to STS are

  • January 8th to March 4th
  • March 26th to April 15th
  • May 7th to June 3rd (except the week of May 21st)
  • October 8th to November 25th

based on data collected exclusively by Champion Traveler across tens of millions of flights. Among all the dates above, the very cheapest time to fly from ITM to STS is late January. Prices can be as high as $7929 for Thursday flights during early August, or as low as $974 for Tuesday flights around late January.


When to Fly to Santa Rosa

Flying from Osaka (ITM) to Santa Rosa, CA (STS) will usually cost between $1031 to $1609 per person if booking more than four weeks in advance. On average the very cheapest time to fly is late January with an average ticket price of $1027. Due to high demand the most expensive time to fly is early August, with an average price of $7929. Planning your trip to low-cost times can easily save you $6902 on economy flights and even more on first-class flights. Generally, any price below $1238 can be considered a good price for a round-trip ITM to STS flight.

See below for a graph of average weekly prices for the ITM to STS route. All prices are for round-trip tickets in USD.

ITM to STS Flight Prices

Compared to other flights, the ITM to STS flight is slightly more expensive than the average and costs about as much as the average flight leaving from Osaka. The average price per mile (for a direct flight) is $0.14, which is far below average.


Flight Prices by Day of the Week

Tuesday is usually the cheapest day to fly to STS, and Monday the cheapest day to fly back into ITM. Thursdays are the most expensive days to fly to Santa Rosa, and Saturdays are the most expensive days to return to Osaka. Selecting flights on the least expensive days could save you up to $266 (17%) on this flight.

Departing prices are for round-trip flights returning on the day of departure. For example, a flight departing on Tuesday and returning a week later will cost an average of $1170. Return trip prices are from the STS to ITM flight, and often highlight the quality of our data in showing the same trend.

Departing Prices by Day

Departure Day Prices

Return Trip Prices by Day

Return Day Prices


Nonstop Flights and Layovers

Travelers looking to fly from ITM to STS can generally find a 2-layover flight. Because there is not usually a direct flight option the real-world direct flight time of 10 hour 34 minutes may not be realistic.


Alternative Nearby Airports

Champion Traveler tells you which airports are nearby and whether tickets might be cheaper alternative airports nearby. Sometimes it’s worth it to fly into a closer airport and then commute to your destination. Remember that there is not usually a nonstop flight from ITM to STS while comparing.

Destination alternative #1: Norman Y. Mineta San Jose International Airport (SJC) in San Jose, CA

  • 93 miles (150 km) away from STS
  • Usually 4.12% less expensive than STS
  • 1-layover flights available

See ITM to SJC flights

Destination alternative #2: Sacramento International Airport (SMF) in Sacramento, CA

  • 67 miles (108 km) away from STS
  • Usually 1.45% less expensive than STS
  • 2-layover flights available

See ITM to SMF flights

Destination alternative #3: San Francisco International Airport (SFO) in San Francisco, CA

  • 66 miles (106 km) away from STS
  • Usually 0.40% less expensive than STS
  • 1-layover flights available

See ITM to SFO flights


Flight Hacking ITM to STS

Flight hacking is when you book two tickets instead of a layover, sometimes with different airlines. You will need to either bring only a carry-on bag (highly recommended) or leave yourself plenty of time to go through security again. Flight hacking is completely allowed, but airlines don’t always tell you the cheapest way to get from ITM to STS — but Champion Traveler does!

Hack #1: Los Angeles, CA (ITM > LAX > STS)

  • Price for both tickets: $1171
  • Average savings: $67 (5.41%)

See ITM to flights


Flight Questions Answered

Still have questions about flying from ITM to STS? We’ve got answers.

Which airlines fly this route?

You can find 5 major airlines flying this route most often: Alaska, American, ANA, JAL, United, and potentially more during busy seasons.

How far away is it from Charles M. Schulz – Sonoma County Airport to Osaka International Airport?

The distance between the two airports is roughly 5322 miles or 8565 kilometers.

How long does it take to fly from ITM to STS?

The real-world flight time for a nonstop ITM to STS flight is about 10 hour 34 minutes.

How many flights go between Osaka and Santa Rosa, CA?

It depends on the day of the week and the date, but a typical day might have around 13 available flights from ITM to STS.


Airport Location Info


Departing Airport

Origination code ITM
Origination airport name Osaka International Airport
City Osaka
Country Japan
Latitude 34.8
Longitude 135.4

Return Airport

Destination code STS
Destination airport name Charles M. Schulz – Sonoma County Airport
City Santa Rosa, CA
Country the United States
Latitude 38.5
Longitude -122.8


Other Resources

Please note that while we’ve worked hard to analyzed tens of millions of flights to get you this data, we do not calculate current live prices or guarantee pricing. Please see our partners using the links above for current offers.