A silver bullet to UPS? Heck, everyone wants one of those. The magic sauce seems to be:
1) Luck (ok... I kid)
1.1) luck (no seriously!)
1.2) Experience of some unknown mix of: a) probably greater than 7k hours, b) some time in heavy-ish, c) maybe some 121, and d) international
2) Internal Recs
3) Attendance at a job fair. (maybe move this up or down in the list)
Of course, you'd have to be able to show you would fit with company, too. Before the job fair, get yourself up to speed on all of UPS, not just the airline portion.
Good luck!