Hi, We have the following award booked: ORD-LGA-JFK-HEL-ZUR. We are flying AA from ORD-LGA and then AY for the rest of the trip. Both layovers are about 23 hours so just within the legal limit. We are AA Gold and would like to try to standby for an earlier flight from ORD in order to get into NYC in time for a play. Can we do this and not jeopardize the rest of our ticket? My concern is that our layover will then be more than 24 hours prior to the JFK-HEL leg. I've never tried this before and think we should be ok..but wanted to check. Thank you!