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