Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Kuala Lumpur to Prince Edward Island as you normally would.
Kuala Lumpur Intl Airport is KUL and Charlottetown Airport is YYG. These codes are created by the International Air Transport Association (IATA) and airlines use them to identify the departing and arrival airports in the flight routes they service. Ready for more IATA code knowledge? These are related airports for your current travel destination: Kuala Lumpur Subang Airport (SZB), Malacca Batu Berendum Airport (MKZ).