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United States Department of Transportation United States Department of Transportation

Charles M. Schulz Sonoma County Airport (STS)

Charles M. Schulz Sonoma County Airport is a medium-sized airport that provides service to aircraft with a wide range of performance capabilities and the mix of commercial air carrier, corporate and general aviation operations. It is located northwest of the city of Santa Rosa, California. During a wildfire season that lasts from late spring to early winter, STS will see intense periods of high traffic due to firefighting aircraft activity. View a printable document of the STS information found on this Web page. 


Know Before You Go

  • Hot Spots 3 and 4 are located on the north side of the airport.
  • A unique feature of the airport is that small piston aircraft are taxied with a clearance limit of the North run-up area and not the departure runway.
  • Clearance must be obtained prior to leaving the run-up area for runway assignment. 
    • TWR will normally issue RWY 20 full length at TWY H, or
    • RWY 14 at TWY A3
  • The RWY 20 approach hold line is on TWY A. Aircraft that are taxied to RWY 14 may receive control instructions to hold short of RWY 20 Approach.
  • Aircraft that are taxied from the North Run-up Pad to RWY 20 via TWY H sometimes make a slight right turn and end up crossing the RWY 20 Approach Hold Line.
  • Pilots have missed the run-up area completely and continued to taxi on TWY A across the RWY 20 Approach Hold Line.
  • Non-compliance with taxi instructions has resulted in arrivals executing a “go-around” on RWY 20 for taxiing aircraft.
  • Hot Spot 4 is located at the intersection of RWY 14/32 and RWY 02/20. Pilots have been cleared for takeoff on one runway but departed the other. Pilots should verify heading and alignment prior to departing.
  • Hot Spot 1 occurs at the intersection of TWY A, TWY A5 and TWY Z. Pilots need to be aware of their position and clearance to avoid taxiing onto RWY 14/32.
  • Hot Spot 2 is located at the south end of the airport and is a reminder for pilots that a portion of the south run-up area is not visible from the tower.

Below find various STS-specific information and things to be aware of, as well as general information to inform your preflight planning. This will be reviewed quarterly and updated as needed. This information is to supplement the From the Flight Deck Videos that are produced by the FAA Runway Safety Group. Here you will also find information provided by the local air traffic controllers at the airport where you intend to fly. The information is subject to change. Not for navigation or legal* pre-flight action. Always refer to official pre-flight materials such as, but not limited to, NOTAMs, airport diagrams, VFR charts and airport construction notices for the latest airport-specific details.

STS Tower Administrative Office
Business Phone 707-546-4294
Open 0930 to 1630 Local – Monday through Friday

General Links

Here are some links to current FAA information.

Some Advisory Circulars for Reference 

Last updated: Tuesday, August 29, 2023