The bureau also found that at least four airlines could change their mileage programs without notice.

But many airlines changed their policies as a result of pressure from the unions and the companies' impression that the problem was growing.

And airlines can change their programs with little or no notice.

The airline changed from charter to scheduled service in 1986.

In 2000 the airline changed owners and was named Nature Air.

Some airlines have changed the rules of the game since last summer by adding new seat selection options.

Most airlines have changed the policy and allow as of November 2009 only one bag to be checked in for free.

He said the airline had changed the flight number from 587 to 619.

He said he was not surprised that all seven big airlines had changed leaders in such a short period.

But as a result of new proposals from Airbus, the airline changed its plan.