The Department of Justice has a few questions about several airlines. The main question is, are they working together to keep airfare prices high? One reason this question is being raised is due to the fact that fuel prices have fallen by 40 percent. Yet, ticket prices remain the same or higher.
Airline mergers are one thing that has led to the ability of airlines to cooperate with one another. Doing so benefits all of them since they can charge more. It is more lucrative for the airlines to work together, than it is for them to compete with one another.
As long as people are willing to pay the higher prices, airlines will continue to raise them. The cost of flying has gone up almost 20 percent in the last five years.