When you buy through our links, Business Insider may earn an affiliate commission. Learn moreThe best prepaid phone plans cost significantly less than standard postpaid plans from major carriers.Antonio Villas-Boas/Business InsiderThe best prepaid phone plans are excellent economical options that arguably provide most people with all they need for cell phone connectivity, like plenty of high-speed data when and where they need it, at notably lower costs than postpaid plans.Currently, our top pick among the best prepaid phone plans is Mint Mobile's 12-month unlimited plan with the carrier's limited-time 50% discount.