We spend 15,000NZD(or 11,000USD ) for two, all included for 136 days stay in South America. We spend the money wisely, however, sometimes we did some mistake as well.   so, we think you may spend lesser than us if you get all the information from us.

You can see, transportation was we spent the most. We take Air New Zealand to Buenos Aires from Auckland it cost about 1860NZD for two.  Sometimes, Promotion as low as 599NZD/person.

We also have a round trip ticket bought 4 months early from Santiago to Rapa Nui (Easter island), it cost about 1135NZD for two.

We leave South America from Rio de Janeiro to Berlin by Condor Airline it cost only 540 Euro for two, and another flight from Copenhagen to Bangkok cost 380 Euro. It's Norwegian Airline only 20KG check in luggage without food on board.

Food	1173
Beverages	144.66
Lodging	1455.54
Transportations	2947.13
sightseeing/tour	1276.71
shopping	213.57
other	521.33
Air ticket	2385
easter island airticket	850
	10966.9

All in USD

PS: due multi currencies changed often, margin error exit.