Coupon for 20% off, redeemable online for 3 day advance purchase non-refundable main cabin tickets only. Book by 12/31/12 (11:59 PM CST) to fly between 12/12/12 and 2/28/13. Significant blackout dates apply; subject to availability; and other restrictions apply. See store associate for complete details. One per customer, while supplies last in US (not including Puerto Rico) Banana Republic stores only. Not valid at Banana Republic factory stores or online.
I haven't seen the physical coupon yet, so I don't know exactly when the blackout dates are. If anyone has the coupon, please let us know. It says one per customer, but I'm sure you can go to multiple Banana Republic stores (if there is more than one in your area) and grab a couple, or just have some friends go into the same store and get some extras.