Question : Do prices fluctuate more for this route than others?
Answer : Prices for IAH to KRS do fluctuate much less than most. Prices tend to be lower the further out you book.
Question : How many days should you spend in Kristiansand if you're flying in from Houston?
Answer : Of course you're not most people, but if you were, you'd stay roughly 23 days.
Question : Would you be willing to change your travel days if it saved you money?
Answer : The cheapest day to fly in December is Monday. Being flexible with your travel days garners you even more savings during your booking.