Despite a disappointing run in the playoffs, América and Quintero had a successful run during the 2014–15 CONCACAF Champions League. He made his first appearance of the tournament on 25 February 2015, in the first leg of the quarterfinals with Deportivo Saprissa, picking up an assist in a 3–0 win. América would win the return leg comfortably 2–0. They would run into trouble in the semifinals, losing 3–0 in the first leg with C.S. Herediano. In the second leg, Quintero got things started early, tapping in a spilled ball by the Herediano goalkeeper in the 4th minute. Four minutes later, Quintero set up Darío Benedetto, who turned and fired the ball off the post and in. In the 19th minute, Quintero assisted Benedetto again to level the aggregate score at 3. América would go on to win 6–0 and advance. In the first leg of the final América and the Montreal Impact played to a one all draw. After falling behind early in the second leg, Quintero picked up to assists as "Las Águilas" scored four goals. The Impact would score once late, but it was too little too late as América won their sixth CONCACAF championship.