Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Penang to Cayman Islands as you normally would.
If you book a flight to Cayman Islands from Penang, you will be flying from Penang Intl, which is the city’s only airport. Penang Intl (PEN) is located 14.5 km from the centre of Penang.