Delta adding summer destinations from Detroit, extending other seasonal routes

Delta is launching seven new international routes this winter and expanding summer service from Detroit and Cincinnati for 2027, according to announcements on November 8. The carrier is adding summer destinations from Detroit, extending other seasonal routes, while also expanding Cincinnati flights to Florida for the summer season. Coverage from Simple Flying details the full list of new international routes, and Delta News Hub notes the broadening of the summer schedule with new and expanded weekend routes. The Lansing State Journal and The Detroit News focus on the Detroit summer flights, with the latter highlighting the extension of seasonal routes. Reporting does not specify which routes are new versus expanded, nor does it clarify whether the Detroit additions represent entirely new destinations or a resumption of previously served cities. The exact number of new versus extended routes and their specific destinations beyond the Detroit and Cincinnati examples remain unclear in the available coverage.