It's hard to tell right now, because there hasn't been much hiring for the last year. Portland is the largest Q400 base and there are currently about eighty fully qualified FO's based here (and a few more in training that will get Portland as a base). From what I've heard, the "hard to get" base for Q400 FO's is Seattle. Given the projected level of hiring and the number of FO's needed in Portland, I think you could get Portland as a base within six to twelve months.