Allegiant airlines provide you the best prices as compared to other airlines. Before booking your ticket, do check out the fare on the website. If you book 60-90 days prior, you can easily book your flight tickets to avail the bestest price; Allegiant airlines has its flight schedule set for 90 days so that you pick your ticket according to your preference and convenience in advance. If you can plan your trip in advance, then definitely grab this opportunity and get the cheapest fare price. Avoid last moment Reservation when you can do it early!