«For fliers
redeeming their miles, Delta will continue to award tickets by pricing them
in miles, not
in actual cash fares, offering
different levels
of availability as it does today -LSB-...] Delta plans to introduce a system with up to five tiers
of redemption choices so customers will have a wider
variety of options, including one -
way reward tickets and the ability to
redeem tickets using both miles and cash, Mr. Robertson said.