In the 2014–15 season McKeon was part of a strong Connacht start to the Pro12 campaign. McKeon started in all of Connacht's opening games, with the team winning each win. McKeon also scored the team's first try of the season when he touched down against the Newport Gwent Dragons. McKeon made his 50th senior appearance for the side on 26 September 2014 against Glasgow Warriors as Connacht's winning start was brought to an end.