Slightly OT: Reserve much more time if you connect to *A flight, donīt have your luggage checked through and donīt have a boarding pass. The *A trasfer desk airside can be unmanned (it is unmanned before 8:00 AM - a very aggravating feature) and the TI check in area is a total mess most of the time, especially if it is holiday season. In case you (are desperate and) have to use a *A carrier from HEL, do check in online, PYOBP, and have carry on luggage only. Then you might not miss your flight.