Overnight connection at YUL, okay to check luggage through?
I have an overnight connection at YUL, intl to intl (LGA-YUL-GVA). Arriving at 9pm, departing next day at 8:30pm (you know, the 23h30m connection). It's on one through ticket, all AC flights. When I check in at LGA, will AC let me check the bag all the way through, or will I have to claim it at YUL?