2 to 4 PM weekdays previously. Sonic Nights starts, with half-price shakes after 8 p.m., is back at Sonic Drive-in starting Monday, April 1, 2019.
Happy hour is 2 to 4 which is half priced drinks and slushies, Or use the app to order half price drinks and slushies, same as happy hour but for the app, its always half price
Anytime if you use the app to order.
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