The Islanders, who won the first leg, 1-0, at home, will join Harbour View of Jamaica and Trinidad & Tobago's Joe Public as the Caribbean representatives to the inaugural Concacaf Champions League.
The three Caribbean teams will be among 16 teams vying for eight spots in group play. Two teams from Mexico and the USA and one each from Costa Rica, El Salvador, Guatemala and Honduras earn automatic passage to the group stage.
The Islanders may be joined by another USL-1 club via the new Canadian club competition called the Nutrilite Canadian Champions League. The Montreal Impact, Toronto FC and Vancouver Whitecaps are facing each other in a six-game tournament for a spot in the newly formed CONCACAF Champions League.