Airport and a few hotel options below.
AirBnB & VRBO are also great and affordable options in Sonoma. Use the address to the Reception Lunch (El Dorado Kitchen) as reference
Hotel
The Lodge at Sonoma Renaissance Resort & Spa
Sonoma, CA 95476 (707) 935-6600
Hotel
Best Western Sonoma Valley Inn
550 2nd Street West Sonoma, CA 95476 (707) 938-9200
Hotel
El Pueblo Inn
896 West Napa Street Sonoma, CA 95476 (707) 996-3651
Hotel
El Dorado Hotel
405 1st Street West Sonoma, CA 95476 (707) 996-3030
Flight
San Fransisco Airport (SFO) or Santa Rosa (STS) or Oakland (OAK)