Similar question here as OP. Flying CUZ-LIM on Lan, connecting to LIM-EWR on UA in early May. Choosing between a CUZ-LIM flight that will give me either 3 hours or 4.5 hours to connect in LIM. The above indicates 3 hours should be sufficient - even with a 1 hour delay. Is this generally the consensus? I've head CUZ is a great city so would like to maximize our time there, though 1.5 hours isn't worth the pain of having to miss the one flight of the day.