Looks like if you ticket by the end of Feb. for travel through April, you can get 2 coach awards for the number of miles required for 1.
The promo is only good on awards to/from Central America, or on the northern South America to southern South America awards. An excellent deal with a generous travel window that surprisingly covers Semana Santa!
Wish I had more Distancia miles...
http://www.taca.com/eng/res/rspe/rspe273.asp