I am a Hong Kong citizen and was looking for a HKG-LHR return ticket. I found an offer from Finnair, of which the outbound flight from HKG to LHR combines two of their flights and has a stop at HEL. Despite being appealing to me, the 55-minute transfer time really concerned me. After I've done some research on their website, I realised that I will have to go through a security check, passport control, and also a health check under the COVID situation. May I know is 55 minutes enough for me to catch the connecting flight? Thank you.