Ok, so I "think" I need to travel from SJC to FAI (Fairbanks) 4/6-9 or so, and I've found (incredibly) RT award reservation availability for 25k. My plans are 60% sure, obviously really don't want to pay Delta their $150 punishment fee if I change my plans. Does anyone have any idea (not sure how anyone would, but hey, thought I'd post and ask) how long you think that great award availability at 25k will last, as the travel dates approach...?

Thanks!