If you are flying in for the big day, there are two options for Airports:
San Diego International Airport
or
John Wayne/Santa Ana Airport
Here are also three different Hotels if you need it that are about all the same distance away from the venue which is about 10 min.
Hotel
SpringHill Suites by Marriott Temecula Valley Wine Country
28220 Jefferson Avenue Temecula, CA 92590 (951) 699-4477
This is about a ten minute drive from the venue
Hotel
Hampton Inn & Suites Temecula
28190 Jefferson Avenue Temecula, CA 92590 (951) 506-2331
This is about a ten minute drive from the venue
Hotel
Ponte Vineyard Inn
35001 Rancho California Road Temecula, CA 92591 (951) 587-6688