ATLANTA, Sept. 7, 2011 /PRNewswire/ -- Delta Air Lines (NYSE: DAL) today became the first airline in the world to provide in-flight Internet service onboard its regional aircraft with the launch flight of a Wi-Fi-equipped Bombardier CRJ700 operated by Delta Connection carrier Atlantic Southeast Airlines. Delta had previously announced its plan to expand the number of Delta aircraft - which currently includes its entire domestic fleet of more than 550 aircraft - with onboard Wi-Fi to an additional 250 regional jet aircraft operated by Delta Connection carriers. Delta will be the first carrier to deploy Wi-Fi across its entire mainline and two-class regional fleet, a total of more than 800 aircraft.