On average, the least expensive day to fly to Hermosillo from Canada is on a Sunday. momondo users have found tickets for Sunday departures for as low as 473 C$. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Saturday is the most expensive day to depart from Canada because it is more convenient for both business and leisure travellers. As a result, prices tend to be around 944 C$.