Originally Posted by
TWA884
In case that you missed it, my point was that it's less of a hassle to transit at some airports, such as HEL, than at LHR.
But at HEL the not having to reclear security only applies to a limited number of counties of which the UK and US are two
Helsinki Airport follows European Union's (EU) security regulations. Therefore, passengers arriving from non-Schengen countries (excluding EU countries not part of the Schengen area, as well as the United Kingdom, the United States, Canada, and Singapore) proceed to their connecting flights through security control
https://www.finavia.fi/en/airports/h...port/terminals
If you arrived from e.g. China or Japan you'd have had to reclear security in HEL