Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Glasgow to Hilo as you normally would.
For a flight from Glasgow to Hilo, you will be flying into Hilo Intl. Hilo Intl (ITO) is just 3.0 mi from the center of the city. Hilo Intl is the only Hilo airport and it handles 0 inbound flights from Glasgow per day. 0 airlines have flights to Hilo Intl from Glasgow on a regular basis.