Upgrade coupons according to routes (one-way) at LAN flights

Within Southamerica	1
Within Southamerica and the Caribbean / Cancun / Easter Island / Papeete	1
Other routes (From or To)	Equator Equator Peru Chile / Argentina Chile / Argentina Uruguay Uruguay	USA / Canada Europe USA / Canada / Mexico City / Europe USA / Canada / Mexico City Europe / Oceania USA / Canada / Mexico City / Europe Europe / Oceania	1 2 2 3 4 3 4