American Airlines has launched a new set of retro-inspired trading cards for passengers, featuring modern aircraft and historic planes. Starting in early May, passengers will be able to collect the cards directly from pilots on select flights, with wider availability expected before summer travel season. The cards will be distributed on a first-come, first-served basis. The airline plans to print millions of the cards in time for summer. On social media, aviation fans have already shared videos of passengers requesting trading cards from pilots before and after their flights.