I went to check prices on the non-stop LGA-YUL flights and it looks like they longer have these.

Anybody know when these flights stopped?

I'm not surprised to tell you the truth. Last time I took these flights I was one of 4 passengers going up and 1 of 2 passengers coming back.

The loads were very light on times I have taken the flight, too. It's hard to compete againast AC Airbii and CRJs with a Dash 8. I wouldn't be surprised to see US codeshare with AC once Star Alliance kicks in.