Originally Posted by
krakendown
Can we please add some routes to these upgrades? It would be good to know if certain routes have less or more upgrade potential.
It's pretty intuitive.. anything to/ex-ATL over 2 hours will be a tough upgrade except during very odd hours.
To expand on this, at larger hubs or during heavier business travel hours (commute direction matters - e.g. ex-ATL on a Monday morning is harder than to-ATL on a Monday morning), fare classes purchased will make a big difference. I am 0 for 8 on flights I booked more than two weeks in advance (generally a Q fare class) but am probably 30% (some of this is from RUCs) when booking B or Y fares. There will be at least 15-20 Diamonds on high demand long routes normally, so fare class makes a big difference in where you land in the stack.
The "Upgrade Success" thread is where you probably want to go if you want more detail.