RPU & GPU
Hello, I'm traveling with 4 other people in same reservation on UA from LAX to JFK nonstop in eco. How does RPU/GPU work? Is there a way I will know for sure that I will get upgraded if using RPU/GPU? I want to trade with someone in the coupon section for one but don't know exactly how this works. Also, how many passengers can get upgraded using RPU/GPU under 1 reservation? Thanks ^