Originally Posted by
kyushuman
Just got the email that I was upgraded on MEX-MSP (the return portion) as well, at the 5-day window--on a (low) reward ticket.
The MSP-MEX route just started so I wouldn't use it as a great example right now. It has been going out with empty seats up front everyday and even on the A319 is seeing horrendous load factors (IIRC 30-40%). I know a couple weekends ago it went out with 14 passengers down and 25 coming back. Even as an FO or non-rev you have close to a 100% chance at an upgrade on this route. But, it is new so only time will tell.
Back to the OPs question, generally speaking Mexico is really easy for upgrades....typically even for FOs. However, of all the markets SJD is the toughest because it seems to generate a lot more paying F passengers than the others. As a PM traveling in the summer I would say that you have a very very good chance at an upgrade as well as your GM wife since it is the low season.