SONIC DRIVE-IN Locations in San Marcos
  • Special Store Hours
    1215 Grand Avenue
    San Marcos, CA 92078

San Marcos, CA Sonic Restaurants Near You | Drive-Thru Fast Food Locations

SONIC Drive-In in San Marcos is the ultimate dining experience for the whole family. We’ve got it all: breakfast favorites, delicious burgers, snacks and sides for any time of day, ice cream and frozen treats plus more than 1.3 million drink combinations. SONIC Carhops in San Marcos are ready to deliver your order to the comfort of your car.

Use the SONIC app at San Marcos Drive-In to get half price drinks and slushes any time plus exclusive offers and rewards! Customize your favorites just how you like them and pay with ease through the app.

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