Bailor's production declined in 1979, as he batted only .229 with 1 home run and 38 RBI in 130 games, however, his fifteen assists from right field tied Dwight Evans for the most in the American League. In , Bailor lost his job in right field to Lloyd Moseby, and was used as a fourth outfielder. He also appeared in three games as a relief pitcher, allowing two earned runs in 2.1 innings pitched. On December 12, the Blue Jays traded Bailor to the New York Mets for pitcher Roy Lee Jackson.