http://www.ajc.com/business/more-pets-died-on-1350318.html More pets died on Delta Air Lines than on any other carrier last year, according to data released by the federal government. Out of 35 pets that died on airlines last year, 19 died on Delta flights. That's up from 16 the previous year. Delta said it carries more pets than many other airlines, in part because of its broad route network. The number of pets that are injured or die on the airline is less than 1 percent of pets carried, Delta said. Many carriers such as AirTran and Southwest don't carry pets as checked baggage in the cargo hold. Some pets also are transported in the cabin as carry-ons, but the deaths were all in the hold.