Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Evansville to Philippines as you normally would.
Due to multiple factors, expect to potentially pay more when booking in December. For low rates, August can be a great choice for travel to Philippines. Flights to Philippines from Evansville in August are about $1,314 on average during August, but can be found for as low as $839.