Just wishing to confirm AS' schedule change policy.

If departing or arriving 1+ hour than initially ticketed, the options are to change to any flight (free of charge?) +/- 1 calendar day?

Alternative airports are only permitted if they have designated a "co-terminal"? Or will they consider a change to a nearby airport from a distance perspective?

For reference, we were scheduled to fly in to BZN at 10 pm, but that has been pushed back to 12 am, which now prohibits us from renting the car we initially reserved, and would have us arrive at our accommodation at 2:30 am-ish. Rentals are now several hundred dollars more, as there will only be one rental agency open that late. Would they consider flying us to say, HLN, BIL, or even JAC/IDA without charging a fare difference?