Originally Posted by
avermat
Finnair gains advantage against competitors at HEL. T1 is now opened but security control is still closed during this intermediate period of border control. SK/LH/DY passengers are made to trot across the terminal to catch their flights.
This is theoretical, though. Everyone enters the airport via T1 as the driveway to T2 is closed. (And hardly anyone bases their ticket purchase decision on this...)