Planning a vacation? Looking to book a flight and get the best deal? You have landed spot on the right place! FlipFares provides you with a number of deals to choose from whether you are booking tickets well in advance or just a few hours before departure. However, so as to answer that question, one can make his flight bookings 300-350 days before the departing date. However, airlines offer sales almost every month or every three months during which airline tickets are really cheap. Also, keep in mind the simple fact that the way to get the worst airfare, in most cases, is to buy your ticket really late or really early. Airlines like the United, American Airlines and many domestic airlines provide you both the options- of booking flights well in advance or booking them 2 hours before the flight departs.