What is lacking in this statement?Airlines use a lot of different fares to capitalize on expanding their revenue and providing the best pricing for all the route options currently established by the airline. It is very challenging for airlines to have just only one fare (as there are class differentials, route costs, external vs. internal booking costs, fare restrictions and refund options, etc). It is important for airlines to keep these different fares to be competitive as well since this is an industrywide practice. According to Alternative Airlines.com, "Airlines use revenue management to sell the right ticket, to the right person, at the right time and at the right price. It's a delicate balance between selling as many seats as possible on an aircraft versus making as much revenue as possible from those seats