Paka: I am going to be flying from California to Costa Rica in March for a school program and then probably taking a bus to South America. I am not really sure what the deal is with multidestination and group flights, though. I'm sorry I can't be of more help.
Haley: I will be in South America in August, I would love to meet up if that is when you go. Unfortunately, I have to be back at school by the end of September.