Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Ipoh to Chengdu as you normally would.
Related info for your journey
Useful info, stats and facts about Ipoh to Chengdu flights.
These are just IATA (International Air Transport Association) codes. They are used in aviation to identify and differentiate airports. That’s why a Ipoh Airport to Chengdu Airport flight would often be abbreviated as a IPH to CTU flight.