But the OP is trying to weigh a career earnings based on upgrading in a short period at an LCC and longer at a legacy. I just wanted to point out to him that there are short upgrades at legacies now too while ours is getting longer. We don’t know where he lives or where he wants to be based. Based purely on money alone and taking first available upgrade wherever you are the much higher earnings is at the legacies without question. All variables are subject to change.