I am flying Alitalia from LHR to FLR through MXP in a few weeks. Due to some of my plans that have changed I will be arriving in LHR the day before I am scheduled to travel onto FLR. Due to this change there looks to be earlier flights that can get me into FLR than I was regulary scheduled on. If possible I would like to try to get onto these flights to get into FLR earlier.
I checked my fare rules and there is nothing that says anything about standing by either way. How is Alitalia on letting passengers standing by for earlier flights? I would hate to have to get up earlier than I have to, check out of the hotel, and then be told I can't go any earlier.