I booked for myself and my husband 2 award seats for June of 2005. We flew SAS 910/909 EWR to CPH and return in business. I booked my husband's ticket 331 days in advance thru United and about 2 months later I moved enough points around to get a free business ticket thru US Airways. My advice is to get something and hold it for as long as you can and call United EVERY day to see if something opens up on SAS before you book.
Good Luck.