I'm flying IPC-SCL-MIA-JFK all on LA except for the last segment on AA, and originally I was booked with a 2:55 layover in SCL. Now there is a delay on the IPC-SCL flight (due to a late departure of SCL-IPC), and my connection time is now reduced to exactly 1:00. According to Expertflyer, the MCT for SCL is 1:00 for domestic to international, so this connection is just barely valid. Should I be worried? I will be flying in J on both segments with no checked bags, if that helps.

If I miss my connection (the last SCL-MIA flight of the day), the next flight won't leave until the following day. Does LAN normally provide accommodations for misconnecting passengers? Or would I be on my own to try and figure something out?