Spring Airlines Japan

Spring Airlines Japan, operating as Spring Japan under the codes IJ and SJO, is a low-cost carrier based at Tokyo Narita International Airport, its main hub and the origin of essentially all of its scheduled flying. Now a subsidiary of Japan Airlines, it links Narita with a small set of Japanese domestic points and, above all, with cities in mainland China such as Shanghai, Beijing, Dalian, Tianjin and Harbin. The fleet is standardized on the Boeing 737-800, the single type covered by the seat maps here. The airline is not a member of any global alliance.