19Mar 2023 Dairy Queen FREE Cone Day March 20, 2023! by Jackie ⋅ Leave a Comment Spread the loveTweet Dairy Queen Free Cone Day on March 21st I scream! You scream! We all scream for ice cream! Visit a particpating Dairy Queen during Free Cone Day and get a free small soft serve cone! Valid March 20, 2023 at participating locations.