Due to multiple factors, expect to potentially pay more when booking in August. For low rates, October can be a great choice for travel to Nova Scotia. Flights to Nova Scotia from Kuala Lumpur in October are about RM 6,360 on average during October, but can be found for as low as RM 4,337.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Kuala Lumpur to Nova Scotia as you normally would.