Question : How long do most people stay in Chiang Mai when they fly in from Orlando?
Answer : Of course you're not most people, but if you were, you'd stay roughly 44 days.
Question : Will you do what it takes to get the absolute cheapest flight?
Answer : Wednesday is your lowest-cost day to fly in December. Being flexible with your travel days garners you even more savings during your booking.
Question : How often are prices changing for this route?
Answer : Prices are fluctuating a lot more for this route than most routes. However, the sooner you book, the better price you tend to get.