Alaska still has that kind of program. You can turn in 1st class upgrade coupons in exchange for discounts. I don't remember right now how many coupons it takes, but you can get a 25%, 50% or 75% discount off any fair. It seems like it takes 12 coupons for a 75% discount. Actually for those of us who fly Dash-8 planes twice a week, the coupons build up faster thatn we cna use them. So accumulating 12 coupons doesnt really take all that long.