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Charles M Schulz/Sonoma County Airport (STS) currently has nonstop service to 13 destinations on 5 airlines in our latest departure data. The busiest route is to San Diego (SAN), served by 2 carriers, and the largest operator here is Alaska Airlines with nonstops to 9 destinations.
Route data as of September 25, 2026, based on a 7-day departures sample.
This schedule snapshot includes nonstop flights from STS to 13 destinations. The snapshot shows about 25 flights per day across those routes. The busiest options start with San Diego (SAN), Burbank (BUR), Portland (PDX).
All airports near San Francisco (6 compared) →
0 international routes in this schedule set
United States 13
4-5/day on 2 airlines
Embraer E-Jet · Boeing 737 · Bombardier CRJ
These routes have enough tracked flights or schedule depth for a full guide with duration, distance, airlines, aircraft, and frequency.
Ranked by destinations served, then daily frequency.
Ranked by airlines operating the route. Routes with enough tracked data or schedule depth link to full route guides.
Charles M Schulz/Sonoma County Airport (STS / KSTS) is located in Santa Rosa, United States.
The IATA code is STS. The ICAO code is KSTS.
The busiest scheduled route from STS in our current departure data is STS to SAN (San Diego), with 4-5/day across 2 airlines.
Alaska Airlines is the largest operator in our STS schedule data, serving 9 destinations with 16-17/day.
This schedule snapshot includes 0 international routes and 13 domestic routes from STS.
5 airlines operate at STS. Top carriers include Alaska Airlines, Southwest Airlines, American Airlines, Envoy Air, Redding Aero Enterprises.
This schedule snapshot includes direct flights from STS to 13 destinations including San Diego, Burbank, Portland, Los Angeles, Las Vegas.
View live arrivals and departures at STS on FlightRadar24.
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