A Honqqiao (Shanghai) - Gimpo (Seoul) - Haneda (Tokyo) shuttle service would be more than desirable. Having to change from INT to DOM airports in those three cities is taking an annoying amount of time. Especially when flying to/from Korean provincial cities. It's incomprehensible how few INT connections exist from outside Incheon anyway and the lack of DOM flights adds to the problem.

Currently flights between GMP and HND are among the most expensive in Asia if not the world considering the distance and one would hope to get more competition there too.