The U.S. Department of Transportation has fined Delta Air Lines $750,000 for violating the rules of bumping passengers on overbooked flights.
Under federal rules, airlines must first ask for volunteers to give up their seat before the carrier can deny ticketed passengers a seat on an overbooked plane. The airlines must also compensate passengers who are bumped.
In several instances in March 2012, Delta bumped passengers without first asking for volunteers and without explaining that the bumped passengers had a right to cash compensation, the federal agency said.
In addition, Delta reported to the Department of Transportation that the bumped passengers were volunteers, which violated the passengers' rights to compensation, the agency said.