On average, the least expensive day to fly to Haikou from Canada is on a Monday. momondo users have found tickets for Monday departures for as low as 827 C$. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Sunday is the most expensive day to depart from Canada because it is more convenient for both business and leisure travellers. As a result, prices tend to be around 2,007 C$.