Maki Tall, currently on loan from Lille to third division Red Star in France, scored the lone goal for the USA in the 73rd minute after the host had taken a 2-0 lead with goals either side of halftime.
Rubio Rubin, who has played twice for Jurgen Klinsmann's full national team, helped set up the U.S. goal with a cross that found Tall.
Just six players who took part in the
Concacaf U-20 Championship in January started for the USA.
Coach Tab Ramos' team, which is preparing for the U-20 World Cup that kicks off May 30 in New Zealand, will hold an April camp in Austria that includes games against Qatar and Croatia.
March 29 in Plymouth
England 2 USA 1. Goals: Swift 45, Thomas 68; Tall 73.
England -- Pickford, Ball, Tofollo, Stephens, Turnbull; Odubjo (Robinson, 70), Grimes, Reed, Swift (Hanson, 89), Mowatt (Akpom, 80), Thomas.
USA -- Caldwell, Moore, Payne (Donovan 78), Carter-Vickers, Requejo; Canouse (Sonis 73), Arriola (Sonora 61), Delgado; Tall (Yomba 78), Rubin (Gooch 73), Jamieson (Thompson 46).