SideStep, the travel search company, has launched FareTracker, which helps you find the best prices based on historical behavior of ticket prices.
By tracking one or more flight routes over time and monitoring price changes, FareTracker incorporates ongoing fluctuations into its tracking tools. You have the option of receiving weekly updates for these price changes, or receiving an email notification if the price reaches a pre-determined price point for your route.
This strategy offers another point of consideration for users making travel plans. Several travel-planning companies are looking for ways (often patented) to give them an edge for finding the best fare at the right time. Other recent developments for flight fare tracking include cfare's new price comparison tool for finding the best price for a flight.