There is still about a month of summer left. For many of us, that gives us about 6 weeks until fall colors are at their peak. Now is the time to make your reservations for hotels and airlines. According to research by cheapair.com the best prices for air fare is 54 days before departure. The exact amount of time varies. Somewhere between 112 days and 21 days before departure is the best time, after that the prices keep going up. Once you hit 14 days, the prices can be through the roof.