Originally Posted by
JohnnyColombia
Fare classes not upgradeable with elite upgrade coupons (LAN rate groups CK and SP)
G, N, O, Q, S, X*
Fare classes upgradeable with LANpass kms
Y, B, H, K, L, M, V, G, N, O, Q, S, X*
*X added to these fare classes, it seems to be an even deeper discount than O spotted on LA LIM SCL and XL GYE MAD
To me it seems that X should in fact be eligible for an upgrade with coupons. Class X seems to be the cheapest class in the tariff "Base Plus". For example, trying to book 21.12.15 SCL-GRU 10.01.15 GRU-SCL in "Base Plus" on the Chilean site gives "Económica-X":
On the other hand I also got class A on occasions, which indeed belongs to "Base", i.e. should not be upgradable with coupons.
Also on the AA website, class X is listed as "Economy" and not as "Deep-Discount", while A is (
https://www.aa.com/i18n/AAdvantage/e...rlines/lan.jsp).