SONIC DRIVE-IN 1215 Grand Avenue
Sonic Drive-In

1215 Grand Avenue
San Marcos, CA 92078

Hours of Operations Hours:
Monday 9:00am - 12:00am
Tuesday 9:00am - 12:00am
Wednesday 9:00am - 12:00am
Thursday 9:00am - 12:00am
Friday 9:00am - 1:00am
Saturday 9:00am - 1:00am
Sunday 9:00am - 12:00am
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Enjoy your favorite drinks and slushes for half price any time you order in the SONIC app and redeem exclusive app-only rewards!
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Drive-Thru Fast Food Restaurant Near You | Sonic

Here at SONIC Drive-in located at 1215 Grand Avenue in San Marcos, our priority isn’t just great service, it’s great experiences. Whether you’re coming for a Cherry Limeade on your lunch break or picking up Shakes with your team after a big win, we’re ready for you. That’s why our drive-in makes your burgers with 100% pure beef patties, prepares hand-dipped onion rings, and serves ice cream made with fresh milk and cream. Carhops deliver orders with a smile because “This is How We SONIC” and San Marcos is our community. Download the SONIC app and order your favorites to enjoy exclusive perks and offers, including half price drinks and slushes any time. Stop by to treat yourself today!

sonic employee smiling in front of menu board

This Is How We SONIC

At SONIC®, we encourage and attract wildly creative people. Bold, unique personalities whose passion for what they do shows in the food, the experience and the culture of our brand. Sound like you? Get to know us.
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