DFW-GUA complimentary upgrade but GUA-DFW no?
Looking to book PHX-DFW-GUA_DFW_PHX over a long October weekend. Was thinking of just booking Y since J is significantly more, but can't figure out why as an EXP I would be eligible for complimentary upgrade on all segments except for the GUA-DFW return segment which says 'Contact AA for upgrade Awards'... I'm sure it must have something to do with booking class, but I'm surprised that I'm not eligible for upgrade on a 3 hour flight from Central America. GUA-DFW-GUA segments usually have plenty of open space up front, so I'm not inclined to pay a co-pay for this. Does anyone have any experience with this situation?