Coupons for popcorn can be found online and in the Sunday newspaper for an average savings of $1.00. We see deals every few months on popular brands like Orville Redenbacher's, Pop Secret, Jolly Time, SkinnyPop and Pirate's Booty. Stock up at the grocery store when boxes of microwavable popcorn are under $0.75 and large bags of pre-popped popcorn are $1.25 or less.