I was hoping someone here could provide some information on the process of connecting in Lima from an international flight to another international flight.

We are looking to fly from Easter Island to Lima and land at 11:10 pm with LAN. This is on one ticket. Then on a separate ticket, we fly from Lima to Houston on United which is due to leave at 12:50. This gives us 1 hour and 40 minutes to connect.

We are going to try to get them to check our bags through but not sure if this will be successful.

Can someone tell me besides going through immigration, baggage claim, check in at United, immigration again, what other process there is? We went to Macchu Picchu in 2009 and had to stand in line for the departure tax but I think they did away with this.

Expedia actually sells this ticket with this connection but I'm not sure if the connection time is long enough. Thoughts?