Originally Posted by
keitherson
Likely a bug with Skymiles that they don't care about fixing. It's not sold out. They haven't been able to confirm Korean Air space/phantom space keeps showing for months now, and it seems nobody at SkyMiles cares.
KE issue is normally (but not always) KE (not DL) imposed blackouy dates. The flights still have inventory, (its needed for things other than award tickets) and thus return results. However fail when come to time to ticket.