Charles M Schulz / Sonoma County Airport (KSTS), California
Landing essentials
Whether you can land, whether you can refuel, and how customs works here.
Overview
Charles M Schulz / Sonoma County Airport (KSTS) serves the Santa Rosa area of California's wine country as a towered, publicly used field roughly 122 nautical miles from the nearest major metro. The airport handled 26,534 total operations in 2025 according to FAA TFMSC data, with business aviation accounting for 12,127 of those movements. Two paved asphalt runways, a 6,000-foot primary and a 5,202-foot crosswind, support the field's traffic mix, and both 100LL and Jet A1 fuel are offered under an attendance schedule running from 0600 to 2200 daily.
Runways
Charles M Schulz / Sonoma County Airport has two paved runways. The longest, 14/32, is 6,000 ft long and 150 ft wide, with an asphalt surface.
Runway geometry from published threshold coordinates. Not for navigation.
Runways are listed longest first.
Source: FAA Form 5010.
Fuel and airfield services
Charles M Schulz / Sonoma County Airport has Jet A1 and 100LL available on the field. Fueling is available from 6am to 10pm, daily, and the airport has an operating control tower.
Source: FAA Form 5010 / NASR.
Customs
Charles M Schulz / Sonoma County Airport does not clear customs. The nearest port of entry is Travis AFB (KSUU), 44 NM away.
Source: CBP list of ports of entry.
Business aviation traffic
Charles M Schulz / Sonoma County Airport recorded 12,127 business aviation movements in 2025. Traffic peaks in July. Business aviation traffic at KSTS is concentrated in the mid-year and early autumn months, with July and October each posting notably higher operations counts than the winter months.
Business jet movements, FAA TFMSC count. Peak month July, 1,463 movements in 2025.
Source: FAA TFMSC, business jet movements, 2025.
Climate
Charles M Schulz / Sonoma County Airport averages 7.8 days above 90°F in September and 10.9 freeze days in December. August is the warmest month, with average highs of 84.1°F, and December the coldest, at 57.5°F.
Weather station is on the field. Some values are estimated by the agency. 1991–2020 climate normals.
Source: NOAA NCEI.
Operating constraints
Charles M Schulz / Sonoma County Airport has published operating constraints in five categories: runway notes, noise procedures, environmental, pavement strength and other notes.
When the airport control tower is closed, activate the REIL for runway 14, the MALSR for runway 32, the PAPI for runways 02, 20, and 14, the HIRL for runway 14/32, the MIRL for runway 02/20, and the taxiway lights, using CTAF.
Taxiway Z between runway 14/32 and taxiway A is limited to S-20, D-40.
For noise abatement procedures, visit the airport website at flysts.com.
Be alert for numerous flocks of birds on and in the vicinity of the airport, including seasonally migratory geese.
Deer are present on and in the vicinity of the airport.
PCR value: 454/F/C/X/T.
PCR value: 309/F/C/X/T.
100LL is available 24 hours a day with credit card payment.
Jet A1 is available during attendance hours.
The PAPI is unusable beyond 5 degrees left of centerline.
When the airport control tower is closed, contact Oakland ARTCC for clearance delivery.
Source: FAA Chart Supplement.
Nearby airfields
Charles M Schulz / Sonoma County Airport has five airfields within 33 NM. The closest is Petaluma Municipal, 18.00 NM southeast.
Source: Skystar calculation from official coordinates.
Skystar at KSTS
We arrange catering, fuel and trip support here. Supplier prices reach you unchanged; our coordination fee sits on its own line.
The same order, priced two ways.
$2,400.00 catering order at KSTS.
Unchanged.
What the kitchen invoices us is what your quote reads.
One line, fixed.
It does not move with the size of the order.
At cost.
Passed on at the exact amount the processor took.
Market practice figures are industry averages, not a specific competitor.
Frequently asked questions
What runways are available at KSTS?
Charles M Schulz / Sonoma County Airport operates two paved asphalt runways. Runway 14/32 is the longer of the two, measuring 6,000 feet by 150 feet. Runway 02/20 measures 5,202 feet by 100 feet. Both runways support the airport's business aviation traffic, and KSTS is a towered field with an attendance schedule of 0600-2200 daily. Pilots operating outside those hours should note the airport control tower is closed and pilot-activated lighting applies.
Is Jet A fuel available at KSTS?
Jet A1 fuel is available at Charles M Schulz / Sonoma County Airport, but only during attendance hours rather than around the clock. In contrast, 100LL is available 24 hours a day with credit card payment. The published attendance schedule for the field is 0600-2200 daily. Dispatchers planning Jet A1 uplifts outside that window should coordinate in advance, since fueling outside attendance hours is not guaranteed.
Does KSTS have customs and border clearance onsite?
Charles M Schulz / Sonoma County Airport does not have onsite customs clearance. The nearest customs facility is at KSUU, located approximately 44.34 nautical miles away. Flights requiring customs processing should plan to clear at that airport rather than at KSTS. Since STS is a US airport, this applies to international arrivals needing federal inspection before or after operating into Santa Rosa.
What operational hazards should pilots be aware of at KSTS?
Charles M Schulz / Sonoma County Airport carries several wildlife-related cautions in its remarks. Pilots should watch for numerous flocks of birds on and in the vicinity of the airport, including seasonally migratory geese. Deer are also reported on and near the airfield, posing a hazard particularly during low-light operations. These wildlife advisories apply throughout the year, with bird activity noted as seasonal in nature at STS.
When is business aviation traffic busiest at KSTS?
Business aviation traffic at Charles M Schulz / Sonoma County Airport concentrates in the mid-year months. July recorded the highest monthly total at 1,463 operations in 2025, according to FAA TFMSC data, with October also showing elevated activity at 1,278 operations. Winter months such as January and February were considerably quieter, each recording 696 operations. Annual business aviation operations at KSTS totaled 12,127 out of 26,534 total operations for the year.