$801 with or without taxes? They have a QINTRO fare at US$505 R/T that would be CDN $590 before taxes. This may be the same fare if you are quoting all in, if not the QINTRO fare for the 17th/24th return is lower. Lots of Q seats available right now - I suspect nobody even knows about this flight.
QINTRO is max 14 days.