Team Logo. The Las Vegas 51s were a minor league baseball team in the Pacific Coast League. They were the AAA affiliate of the New York Mets. They changed their name to the Las Vegas Aviators following the 2018 season. Retrieved from "https://prosportsteams.fandom.com/wiki/Las_Vegas_51s?oldid=17720" Categories: Former PCL Teams Teams in Nevada Teams in Las Vegas Community content is available under CC-BY-SA unless otherwise noted.