I would guess no, as long as you have an ID. I know in my country if you fly within the country all you need is identification. However getting a passport might not be a bad idea, they do last very long before they have to be renewed.
No, you do not. My son flew to Vancouver (from Ontario) last year and only needed his birth certificate and his student card. Though, I would suggest checking with the airport just incase the laws have changed any since then.
No you don't. They will ask for picture ID when you board the plane (a driver's licence should suffice).
Nope yu don't have to! I travel a lot in Canada and I live in canada and I don't have to hav a passport
No You Don't.. It's When
You Leave The Country
no you dont need a passport just ID