April 1, 2019
Sonic has half price Shakes after 8 pm ALL Summer starting now. This would make a fun and cheap treat! Valid through September 2, 2019.
Plus, you can also try their new Ice Cream Cookie Sandwiches for just $1.50.
And, make sure to download the Sonic Drive-In app. After downloading the app. and creating an account you'll be rewarded with a FREE Sonic Slush.
Last but not least, be sure to follow Sonic Drive-In’s Utah / Idaho Facebook page. They occasionally have special offers and giveaways.