In only some of the cases did the airlines stop flying altogether.

In recent years, the travel industry has been seeking greater protection for itself and its clients, should an airline stop flying.

After operating for about 26 years, the airline declared bankruptcy and stopped all operations in 2000.

The department also wants the airlines to stop indicating the date on which discounts will end.

Further, most airlines stop sending brochures on new awards and program changes if the member does not travel for a month or two.

Most airlines stop assigning seats after about 65 percent have been sold.

In some countries, airlines have stopped giving commission to travel agencies.

Superstition has even made some airlines stop using the number all together.

December 27 - main foreign airlines stop flights to Algeria.

There are, however, other kinds of situation in which airlines may stop operating or suspend their activities.