Starbucks: 50% Off Frappuccino’s This post may contain affiliate links. Please see the full disclosure policy here. Posted on May 2, 2012 Written by Mary 2 Comments It’s back again!! From May 4-13 you can stop by your local Starbucks and save 50% off your favorite frappuccino beverage! Valid ONLY 3-5pm on May 4 through May 13.