Question : How long do most people stay in Munich when they fly in from Calgary?
Answer : Of course you're not most people, but if you were, you'd stay roughly 12 days.
Question : Is price more important than specific travel days for you?
Answer : For the month of February, the cheapest day to fly is Friday. Having flexibility in your travel plans means you can save, so be sure to plan ahead when possible.
Question : How often are prices changing for this route?
Answer : Prices for YYC to MUC do change much more than most. However, the sooner you book, the better price you tend to get.