Originally Posted by
RealHJ
You need to go through transfer security check to get to the departing gates from arriving ones. It can take may be 5-10 minutes may be, 15 max. Just go through regular security screening point (marked for transit), then go upstairs and go to the departure gates.
ICN is a very well and efficiently run airport.
This works, but you need a boarding pass to get through security.
There is a transfer desk before security to get the boarding pass.
ICN is the 2nd best airport in ASIA for everything (HKG being #1), my view.