From my experience, Priceline does have a system for refunds if the price drops, but it depends on the fare type. I learned this when I booked a round-trip ticket to Miami, and a couple of days later I noticed the same flight was showing cheaper. I wasn’t sure what to do, so I called 866-204-0803 to ask. The agent explained the rules, and luckily my ticket qualified—they adjusted it and gave me the difference back as a credit. The best part was how quick the call was; within 15 minutes, everything was sorted. I’ve also used that same number for a cancellation once, and it was by far the fastest way to instantly book, cancel, or modify flights without waiting on hold forever. So yes, Priceline can refund if prices drop, but I’d always double-check by calling that line.