Free single Sonic Patty Cheeseburger with purchase of same. Redemption Instructions Log in to view the redemption instructions for this offer. Participating locations include: SONIC 101 Main St Vista, CA 92084 Phone: 760-940-9900 Map SONIC 39490 Murrieta Hot Springs Rd Murrieta, CA 92563 Phone: 951-813-3000 Map SONIC 1215 Grand Ave San Marcos, CA 92078 Phone: 760-591-0025 Map SONIC 1202 Magnolia Ave Corona, CA 92881 Phone: 951-739-4330 Map Sharing Options Share Offer Copy Link
