Originally Posted by
DC3 Dave
Fare revenue to whom?
Fare revenue to the airline, based on the (estimated) average fare charged to the punters. The guys making the chart know that x,000 passengers flew from A to B in September. Their system crawls over the web booking engine on a regular basis from a few months out looking at how much the fare is for all the dates in September. They make some assumptions about the booking curve, i.e. how many people book how long before the flight on which days (and this is where the biggest inaccuracies come in). This lets them estimate roughly how much revenue the airline gets from selling tickets.