I have a question regarding connections in HEL and I'd appreciate any help or suggestions.

Later this month I'll be arriving in Helsinki on a Blue 1 flight from Arlanda at 18:00 and I was due to fly Air Baltic via RIX to Dublin departing HEL at 20:10, however Air Baltic have cancelled BT326 HEL - RIX. Due to work commitments I can't stay overnight in HEL so I have been looking at alternatives for getting back to Dublin. One alternative is to return straight back to ARN on Norwegian departing at 18:55 and flying Air Baltic via RIX to DUB. Is 55 minutes enough time to make the connection in HEL? Will I have to go through arrivals or can I remain airside, I will only have hand luggage?

Any help is greatly appreciated.

Thanks

V