My trip is in August 2018, I just log into my United account and I see one leg of my itinerary was changed and I loose an hour for my connection waiting time at Incheon airport.
I would like your input before I select accept the changes in my itinerary.

If I depart Narita airport at 7:25pm (with Asianna) and arrive to Incheon at 10:05pm, I have only 1 hr 15 minutes to catch my connection flight to Singapore ( with Singapore airline), will I have enough time to deplane and re boarding again. If not, what option do I have at this pint. I book my ticket using United mile

If anyone has made a connection flight at Incheon airport within 1 hr, can you please share your experience and input.

Thank you