Mahmudul Hasan Chowdhury

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Delta Air Lines to alter reward program; other airlines may follow

If you are saving up reward miles to pay for a trip on<p>Delta Air Lines, you might want to book the trip before the airline switches to a new format that could raise the number of miles you need for the most popular destinations.<p>For travel on or after June 1, 2016, Delta said the number of miles …