The first Boeing 777 was delivered to launch customer United Airlines on May 15, 1995. That aircraft was the brilliantly registered N777UA, a non-Extended Range variant that remains active today. While N777UA’s first test flight was in April 1995, the world’s oldest active 777 is N774UA. It is a 30.8-year-old machine and the second Triple 7 built. Its first test flight was in July 1994, but it was delivered later.