Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Davao City to Milan as you normally would.
If you book a flight to Milan from Davao City, you will be flying from Francisco Bangoy, which is the city’s only airport. Davao City Francisco Bangoy (DVO) is located 6.9 km from the center of Davao City. There are 0 flights from Francisco Bangoy to Milan per day from 0 different airlines.
This is defined as Davao City Francisco Bangoy Airport (DVO) and Milan Malpensa Airport (MXP). Codes like Milan Malpensa Airport are often used to just call airports uniquely. Bergamo Orio Al Serio Airport (BGY), Milan Linate Airport (LIN), Parma Airport (PMF) are other airports near this flight route and their unique identifiers/IATA codes.