20Oct 2022 Sonic $.99 Sundaes Today, October 20, 2022! by Jackie ⋅ Leave a Comment Spread the loveTweet Sonic has their delicious sundaes for only $.99 today, October 20, 2022! Choose from either Strawberry, Caramel or Hot Fudge – limit 5 per order at participating locations. Posted in: Daily Restaurant Deals ⋅ Tagged: restaurant deals, Sonic Drive In Specials