On June 15, 1977, the Expos traded Foote along with Dan Warthen to the Philadelphia Phillies for Wayne Twitchell and Tim Blackwell. Foote served as the Phillies back up catcher behind Bob Boone and Tim McCarver as they went on to win the 1978 National League Eastern Division title before losing to the Los Angeles Dodgers in the 1978 National League Championship Series. He appeared in only one game of the series as a pinch hitter, striking out in his only at bat.