Before deregulation, the industry worked much the same way the airlines work now, by a hub-and-spoke system.

The airline is also working with tourism companies to create integrated sake tours, which are expected to become available this year.

The airlines also work together to provide operational synergies to keep costs down.

Explore how airlines work, how ticket prices are set and more.

The airline works on an annual cost basis because of irregularities.

What's certain is that airlines have been working with the federal government and local airport authorities to improve aviation security since last September.

But consumer groups argue that the airlines are not working hard enough.

Several airlines have been working separately on such systems.

The airline works on an incentive program, and 30 percent of the stock is owned by Sparrow employees.

Since then, the airline has worked to regain its competitive edge.