Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Penang to Sardinia as you normally would.
Related info for your journey
Useful info, stats and facts about Penang to Sardinia flights.
Penang Intl (PEN), located 14.5 km from the city centre, is the airport you fly out of when you book flights from Penang to Sardinia.
These are just IATA (International Air Transport Association) codes. They are used in aviation to identify and differentiate airports. That’s why a Penang Intl Airport to Cagliari Elmas Airport flight would often be abbreviated as a PEN to CAG flight. While you’re still figuring out your travel plans, it’s not a bad idea to learn the names and codes of other airports around these areas: Olbia Costa Smeralda Airport (OLB), Alghero-Fertilia Airport (AHO).