Getting a comfy seat on Delta Air Lines Inc. jets may set you back a bit more next year, as the carrier boosts the number of award miles needed for premium travel.
Like other airlines, Delta lets passengers use frequent-flier rewards to upgrade coach tickets into a business or first-class cabin -- a privilege that will require more points starting June 1. A spokesman, Anthony Black, declined to give details Thursday after Delta signaled the shift in an e-mail to SkyMiles members.
