The following restrictions apply to upgrades on flights to/from Northern South America and within Asia departing on or after February 1, 2014: (1) Complimentary Premier Upgrades and instant upgrades are not applicable; (2) Regional Premier Upgrades (for any fare class) and Global Premier Upgrades (for flights booked in fare class Z, P, S, T, L, K, G or N) can no longer be requested on or after November 1, 2013; (3) There is no co-pay exemption for MileagePlus Upgrade Awards requested on or after November 1, 2013.
That front cabin from BOG-IAH/EWR is going to be dead empty. GPU on a W fare for a domestic F seat? No thank you.