San Jose CA to Cophenhagen Denmark $450 RT on Delta / KLM Airlines (travel Sept-Dec)

Delta Airlines, with parnter KLM Royal Dutch Airlines, have round trip airfares travelling from San Jose CA (SJC) to Copenhagen Denmark (CPH) for $450 including taxes and fees. This makes 2 stops
Departs SJC: Sept 6, 12, 13, 19, 20, 25-28; Oct 1-5, 9-13, 15-21,23-31; Nov 1-16, 20-24, 27-30; Dec 1-8, 10-12
Returns: wide availability with minimum 7 day stay
Use dates and book it on Priceline .
Sample attached.