HURRY! This is probably a mistake fare, as a number of travel agents can see it, but it won’t book. Search on opodo.co.uk.
I’m currently in the UK, and I can’t seem to figure out how to change currencies. Nonetheless, it’s £307, which Google says is $555CAD.
This fare is all taxes included. I do not know what dates work – studying for exams, so I don’t have too much time (sorry!).
As always, don’t call the airline or booking agency.