Dec. 27 (UPI) -- Delta Air Lines said it discovered a second passenger without a ticket this month, this one actually getting on a plane bound from Seattle to Hawaii, officials said. Delta officials said the stowaway was found onboard a taxiing Airbus A321neo at the Seattle-Tacoma International Airport without a ticket on Christmas Eve. Advertisement The unticketed passenger managed to get through the standard Transportation Security Administration screening, and somehow evaded identity