An anonymous reader quotes a report from Ars Technica: On Wednesday, Delta Airlines flight 9771 flew from Atlanta to Pinal Airpark in Arizona. It wasn't a full flight -- just 48 people on board. But it was a milestone -- and not just for the two people who got married mid-flight -- for it marked the very last flight of a Boeing 747 being operated by a U.S. airline. Delta's last scheduled passenger service with the jumbo was actually late in December, at which point it conducted a farewell tour and then some charter flights. But as of today, after 51 long years in service, if you want to ride a 747 you'll need to be traveling abroad.Ars Technica recalls the history of the Boeing 747 in its report, mentioning that although no U.S. passenger carriers still operate the big bird, several hundred remain in service with other airlines around the world.