Delta Air Lines traffic passed United in '15 to become second-largest U.S. carrier
Tuesday, January 12, 2016 - 18:30
in Physics & Chemistry
Doug G. WareATLANTA, Jan. 12 (UPI) -- Delta Air Lines nudged its way up a spot on the totem pole in 2015 and became the second-largest U.S. carrier in terms of traffic, statistics showed Tuesday.