Question : How long do most people stay in Copenhagen when they fly in from Santa Ana?
Answer : Of course you're not most people, but if you were, you'd stay roughly 13 days.
Question : Can you cut down on flight costs by changing the day of the week you travel to Copenhagen?
Answer : Friday is your cheapest day to fly in December. Being flexible with your travel days garners you even more savings during your booking.
Question : Do prices change more for this route than others?
Answer : Prices for SNA to CPH do fluctuate a lot more than most. Prices tend to be lower the further out you book.