I’ve had to cancel a Priceline reservation before, and the easiest way was through their site under “My Trips.” That said, the policies can be confusing depending on whether it’s a flight, hotel, or package. When I canceled a flight last spring, I first tried online but wasn’t sure if I’d get a credit or refund. I ended up calling 866-204-0803, and it saved me a lot of stress. The agent explained my options clearly, walked me through the cancellation, and even helped me rebook a different flight on the spot. The whole process took less than 15 minutes. Now I always keep that number handy, because it’s the fastest way to instantly book, cancel, or modify flights—and they’ve even helped me with hotel reservations too. Having that quick backup has made dealing with last-minute changes so much smoother.