My wife and I recently booked travel to Chile using an AA award. We are planning to bring our 1 year old daughter with us as a lap passenger. I called LAN to get an infant ticket and I was quoted $600. That seems really high! In comparison, the infant fare on our recent trip to Tahiti was $115.

What is the $600 fare based on? Is it possible that I was misquoted or that it will come down? Any tips or suggestions?