SONIC Skips Spring and Starts Summer Early with Half-Price Frozen Treats after 8 P.M.

America’s Drive-In® launches SONIC Summer Nights with half-price Floats, Shakes and Ice Cream Slushes

In a bold move on the first week of spring, SONIC® Drive-In (NASDAQ: SONC) announced it is skipping the entire spring season and starting summer early by bringing back a summertime favorite – half-price Real Ice Cream Shakes, Floats and Ice Cream Slush after 8 p.m. America’s Drive-In is the first to celebrate warmer weather ahead by bringing SONIC Summer Nights, the hottest event of the year, back earlier and better than ever with Floats, Shakes and Ice Cream Slushes. Guests can enjoy these frozen treats, all made with SONIC’s Real Ice Cream, for half-price after 8 p.m. every night.*

This press release features multimedia. View the full release here: https://www.businesswire.com/news/home/20180322005415/en/

“We are bringing back tasty Real Ice Cream Floats to add to our sweet and creamy Shakes and deliciously fruity Ice Cream Slushes for SONIC Summer Nights, offering guests endless customizable options to create their own perfect flavor,” said Lori Abou Habib, chief marketing officer at SONIC. “We think everyone has endured enough cold and unpredictable winter weather for the year, so why not bring summer early? SONIC Nights is the perfect place to celebrate and indulge with our Float, Shake and Ice Cream Slush lineups, and now at half the price after 8 p.m.”

Guests can pair a refreshing soda like Barq’s® Root Beer or Fanta® Orange with rich vanilla ice cream to create a classic SONIC Float, pick and choose craveable ingredients to mix into any SONIC Shake such as the Strawberry Cheesecake Master Shake, or blend smooth and sweet Real Ice Cream into flavorful Slushes like Grape or Blue Coconut for an Ice Cream Slush. With so many options, guests can enjoy a different treat for a price they’ll love every night from now until the end of summer.

Make sure to follow SONIC on Facebook, Twitter and Instagram for exciting news about SONIC Nights specials.

*See menu for details.

About SONIC, America's Drive-In

SONIC, America's Drive-In is the nation's largest drive-in restaurant chain serving approximately 3 million customers every day. Nearly 94 percent of SONIC's 3,500 drive-in locations are owned and operated by local business men and women. For 65 years, SONIC has delighted guests with signature menu items, 1.3 million drink combinations and friendly service by iconic Carhops. Since the 2009 launch of SONIC's Limeades for Learning philanthropic campaign in partnership with DonorsChoose.org, SONIC has donated $9.5 million to public school teachers nationwide to fund essential learning materials and innovative teaching resources to inspire creativity and learning in their students. To learn more about Sonic Corp. (NASDAQ/NM: SONC), please visit sonicdrivein.com and please visit or follow us on Facebook and Twitter. To learn more about SONIC's Limeades for Learning initiative, please visit LimeadesforLearning.com.

SONC-M

View source version on businesswire.com: https://www.businesswire.com/news/home/20180322005415/en/

For SONIC Drive-InRebeka Mora, [e-mail]