Originally Posted by
Trav1970
This is true. Overall other than for the congestion from very many flights arriving and departing within a few hours, transfer at KEF is easy and hassle free.
Yeah, that's been my experience as well. In fact, when passing through KEF as a transit passenger to/from the UK, I routinely will clear passport control and enter the country since there's a better selection of bars and restaurants during my layover. And for flights to/from Schengen, it's one of the easiest places to enter Schengen
Aside from a single time where I got special extra US-bound random screening upon re-entering the non-Schengen part of the terminal, it's been flawless, and usually under 30 seconds.