Thank you for putting together the notes. It's been 7 yrs since our last visit.
We will fly into ICN from AMS this time around. We will fly out to KIX after 2 weeks in country, and it looks like we need to switch airport. The last few days in Korea, we would be at Jeju - and we prefer to stick w/ *A carrier. How easy is it to transfer from GMP to ICN? The itinerary that we are thinking of, has 3 hr 5 min time btw GMP arrival and ICN departure. We thought of taking AREX, but will take a cab if we need to make up time but AREX seems faster still.
Ideally, we should have hit Jeju first, and do Seoul last, but due to us meeting friends, we need to go to Busan first, Seoul second and Jeju last - hence why we need to do Jeju to Kansai.