Beausejour was a member of Chile's 2015 Copa América squad that won the tournament for the first time. He played the whole 120 minutes of the final, in which Chile beat Argentina 4–1 on penalties at the Estadio Nacional. He and his country repeated their success in the following year's centenary edition. Again he played the full 120 minutes of the final against Argentina, which again finished goalless after extra time. This time he took and converted the fourth penalty as Chile went on to win the shootout 4–2. Along with seven of his teammates, Beausejour was included in the Tournament Best XI. The 2015 victory qualified Chile for the 2017 Confederations Cup. Beausejour started the first two group matches and was unused in the third. He came back into the team for the semifinal, in which Chile beat Portugal 3–0 on penalties, and started in the final, which Chile lost 1–0 to Germany.