Sonoma County Airport offers nonstop flights to multiple destinations via Alaska Airlines, American Airlines, Delta Air Lines, and Southwest Airlines. New seasonal routes include Boise (Nov 1–Apr 19, 2027), Palm Springs (starting Oct 1), Phoenix (Nov 1–Apr 21, 2027), and Salt Lake City (Nov 1–Apr 21, 2027).
Year-round service includes Santa Ana (Orange County), Seattle, Dallas, and Austin. Denver flights operate Saturdays, increasing to five days a week in August.