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Southwest Airlines has announced it will begin service to Charles M. Schulz–Sonoma County Airport (STS) in Santa Rosa, California, starting April 7. The move adds another carrier to the airport, which is located about 60 miles north of San Francisco and serves both Sonoma and Napa counties, regions known for their wine production.
The airline will operate four routes from Santa Rosa: daily flights to San Diego and Las Vegas, five weekly flights to Burbank, and Saturday-only service to Denver. With this expansion, Southwest becomes the third airline at STS, joining Alaska Airlines—which currently operates eight routes from the airport—and American Airlines, which offers two.
This announcement comes as competition among airlines in California intensifies. Alaska Airlines has been expanding rapidly in San Diego, while other carriers are responding to changes brought on by Avelo's exit from the West Coast market. Avelo had previously operated up to eight routes from STS before announcing in July that it would end its West Coast operations. Following Avelo’s departure, several airlines have begun offering new routes to fill the gap at airports like STS and Hollywood Burbank Airport (BUR).
