After the 4th of July I am planning a flight from the Philadelphia area to
Niagara Falls (YSN). I figured a short hop from there would be Toronto City
Centre Airport that I just read about in Pilot Getaways.

What are the proceedures for a US pilot to fly into Canada? I know I would
need to fly into an airport-of-entry which Niagara District (YSN) airport
is, but do I need a passport? Would I need to file any paperwork before I
take off? etc.? Thanks for any help.

Kobra