I'm traveling on the end of an AY ticket (and stock) from HEL-ARN (arrive at 210pm) and then on BA to LHR (return portion of AA ticket with 001 stock) at 340pm. Would I be covered in this case?
Also, what is the likelihood of being able to check my bags straight through HEL-ARN-LHR at the AY check in counter at HEL?