haneda domestic to international transfer time
 

I'm traveling from Kumamoto to YVR through Haneda airport with a stop of 1:20 to change planes from domestic to (Haneda) international terminal. Does 1:20 give me enough time to easily make my flight to YVR?

How long does the transfer normally take? Do I go through customs before boarding for YVR flight?

Thanks for any help offered!

You have enough time; Japanese airports are extremely efficient.

You'll get a boarding pass for the HND-YVR flight when you check in at Kumamoto. When you arrive at HND, take the shuttle bus from the domestic terminal to the international terminal. Follow the signs for the departure gates. You'll go through immigration and security (not customs) at HND.

DonTopaz - Thank you very much for your reply. You have put my mind at ease, and now I don't have to book the flight that has me sitting in HND for 7 hours! And of course, I realized after posting that I go through customs only when I arrive at YVR.