Yes, there are multiple flights from Canada to Asturias for under C$ 891. The cheapest flight booked recently is on Multiple Airlines for just C$ 888, but on average you can expect to pay C$ 3,356.
There are no direct flights from Canada to Asturias, but Cheapflights can provide you with all the information you need to find the fastest route with the fewest stops.
The most popular route from Canada to Oviedo is Vancouver Intl - Oviedo Asturias. You may also consider Montreal Pierre Elliott Trudeau Intl - Oviedo Asturias or Calgary - Oviedo Asturias.
Departing from Canada to Asturias will take you 13h 10m.
Cheapflights users have booked flights from Canada to Asturias round-trip from C$ 1,463.