US Citizen flying within Canada - requirements?

[ClarkJ]

I need to visit my grandmother in Calgary and I'm from Vermont. I have my enhanced drivers license but not a passport. If I drive to Montreal and fly from the Montreal airport to Calgary do I need a passport to get there and return?

Thanks

 

[Creampop]

you should not need a passport to fly from Montreal to Calgary, as it will be a in Country flight. you will have already cleared once you cross the border.

 

[ClarkJ]

Thanks, that's what I was hoping but wasn't sure. I'd hate to get out there and find out I can't fly back