Airport
Charles M. Schulz Sonoma County Airport
STS · Santa Rosa, CA
- IATA Code
- STS
- ICAO Code
- KSTS
- City
- Santa Rosa
- Country
- United States
- Website
- www.sonomacountyairport.org
Charles M. Schulz Sonoma County Airport is a regional airport serving Santa Rosa, CA. Its IATA code is STS and its ICAO code is KSTS.
The airfield sits 128 feet above sea level.
Below you'll find official on-time statistics, current weather and delays, nearby aircraft and traveler reviews. Flown through STS recently? Share your experience to help other travelers.
STS by the numbers
IATA STS · ICAO KSTS · 128 ft elevation · Map
Alerts in effect at STS
-
Advisory Coastal Flood Advisory
COASTAL FLOOD ADVISORY REMAINS IN EFFECT UNTIL 1 PM PST MONDAY
Full text
* WHAT...Up to 1.6 ft of inundation above ground level is possible in low-lying areas near shorelines and tidal waterways. * WHERE...Bayshore locations along the San Francisco Bay and San Pablo Bay. * WHEN...From 6 AM Wednesday to 1 PM PST Monday. * IMPACTS...High tides will result in flooding of low-lying infrastructure, isolated road closures, and coastal erosion. Rising tides will bring water and waves farther up the beach than normal, restricting escape from beaches and coastal areas. * ADDITIONAL DETAILS...At the San Francisco tidal gauge, high tide is expected to be 1.3 ft above normal (7.1 ft MLLW) at 8:35 AM Thursday 11/5, 1.4 ft above normal (7.2 ft MLLW) at 9:08 AM Friday 11/6, 1.6 ft above normal (7.4 ft MLLW) at 9:38 AM Saturday 11/7, 1.6 ft above normal (7.4 ft MLLW) at 10:06 AM Sunday 11/8, 1.6 ft above normal (7.4 ft MLLW) at 10:35 AM Monday 11/9. These predictions include up to 1.2 ft of surge that will enhance the astronomical tide and flooding threat. High tide varies up to 90 minutes earlier or later along the Pacific Coast and through the San Francisco Bay, respectively.
If travel is required, allow extra time as some roads may be closed. Do not drive around barricades or through water of unknown depth. Take the necessary actions to protect flood-prone property.
Weather
Loading live weather, forecasts, delays and nearby aircraft…
Official departure punctuality
Ranks #138 of 358 U.S. airports for on-time departures
- On-time departures
- 81.4%
- Less than 15 minutes late
- Cancelled
- 1.6%
- Of scheduled flights
- Average delay when late
- 70 min
- Flights arriving 15+ minutes late
- Flights tracked
- 5,912
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 48%
- Airline (crew, maintenance, cleaning) 25%
- Air traffic control & airport 19%
- Extreme weather 8%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Source: U.S. DOT Bureau of Transportation Statistics on-time data, September 2025 – August 2026. Covers flights operated by reporting U.S. carriers. About our data
Busiest routes from STS
| Route | Flights | On time |
|---|---|---|
| San Diego (SAN) | 1,060 | 73% |
| Santa Ana (SNA) | 745 | 80% |
| Burbank (BUR) | 741 | 82% |
| Los Angeles (LAX) | 714 | 86% |
| Phoenix (PHX) | 693 | 75% |
| Portland (PDX) | 624 | 91% |
| Seattle (SEA) | 454 | 78% |
| Las Vegas (LAS) | 378 | 79% |
| Dallas-Fort Worth (DFW) | 185 | 74% |
| Palm Springs (PSP) | 142 | 82% |
Airlines departing STS
| Airline | Flights | On-time departures |
|---|---|---|
| SkyWest Airlines | 4,356 | 83% |
| Southwest Airlines | 542 | 71% |
| Envoy Air | 512 | 82% |
| Alaska Airlines | 424 | 82% |
| American Airlines | 78 | 56% |
Runways
| Runway | Length | Surface |
|---|---|---|
| 14/32 | 6,000 ft | ASP, lighted |
| 02/20 | 5,202 ft | ASP, lighted |
Listen to the tower
Air traffic control frequencies, for scanners and airband radios.
- Recorded airport information (ATIS) 120.550 MHz
- Tower 118.500 MHz
- Ground 121.900 MHz
Runways and frequencies: OurAirports (public domain). Not for navigation.
Tags: STS, KSTS, Santa Rosa airport, Charles M. Schulz Sonoma County Airport
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