Originally Posted by LAXRuss

Look at the fine print on the coupons accessible through your online account. I think it says it has to be redeemed by the expiration date. Let me know if I'm wrong because I'd love to book trips later in the year with coupons that I have expiring in April.

I think the mistake I made was redeeming them too soon. This year when I make Plat and Diamond, I'll wait until the last possible moment to redeem the coupons so they will be valid a year from the date I request the award. I should have waited until Dec 31 to ask for the SWUs that I havent yet used.