The airports in Burbank and Ontario are closer to the venue but flights may be limited.
Plan to rent a car or give Sam a call to arrange for carpools or a ride to your accommodations once you arrive in California.
Hotel
Morongo Casino Resort & Spa
49500 Seminole Drive, Cabazon, CA 92230 (951) 849 3080
About 30 minute drive from the venue. Contact Sam if you need a ride to/from the hotel. This is likely the most convenient hotel but I cant promise you'll go home with any money left in your wallet.