I was trying to book Hawaii on CO as well and couldn't find anything under a standard reward online for several dates I looked for. I called CO and asked about standard awards on DL and even NW and there was nothing!!!! Basically I am fed up with CO trying to use miles for standard awards. I have seen from various replies that others are frustrated as well and even the CO agent confirmed that they get alot of complaints. I am following the advice of several on these boards and moving my miles to UA via Amtrak. Good luck with your reward! In my opinion CO mileage program should really be called NONEPass.