Im sure hopper occasionally predicts good times to buy your tickets but dont trust it over your gut instincts. I recently waited much longer than I would have to purchase because hopper suggested that a better price was just around the corner. I watched the price creep up and up and should have just bought my ticket but thought that Id stuck with it for this long so I should go ahead and wait. I finally bought the ticket and that afternoon hopper told me that the prices would only go up so I should go ahead and buy. Trust your gut.
BD10001 about Hopper: Flights, Hotels & Cars