Easy? Maybe if you're a doctor or something, but not as a pilot - too many Canadian pilots looking for jobs.
For me to go to the US and try to get a flying job, I'd have to marry an American, so it'd be the reciprocal for you. No company would sponsor you just to hire you over a Canadian (there's legalities in this, and much scrutiny in the industry now due to Sunwing's use of "temporary foreign workers" but that's a whole other can of worms...)
There may be a small loophole somewhere for flight instructing (i.e. learn to fly at a Canadian school, maybe work as an instructor for 1-2 years there afterwards) like there is in the US, but I have no idea.