On CO, if you are not elite, you can also purchase a YONEPASS fare if it is offered in the market you are flying in. I don't know if it is offered in all markets, but I have seen it offered in many. Basically, it is a full fare coach ticket that is booked in A class at ticketing. You only need to be a onepass member, but not necessarily elite. On the HP side of things, I believe there is a YUP fare that you can also purchase that works the same way.