Purchase tickets between two to eight weeks prior to departure as tickets prices tend to be lowest in this time frame. However, buy tickets as soon as possible when planning vacations during peak travel days, such as returning on a Sunday in the summer, after Thanksgiving and Christmas, and departing on a Friday for spring break.
Travel on Tuesdays, Wednesdays and Saturdays. Avoid Mondays and Fridays. Travel during the evening, if possible, except on Fridays and Sundays. Based on overall flight ticket prices, these are your best bets for landing a great price on your flight.
Use price comparison websites such as FareCompare.com and Kayak.com to learn good deals on flight prices. Type in your cities and dates. To find the best offers, be flexible with your dates, and even try different airports, if there are other options near your destination.