Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Vietnam to Kailua-Kona as you normally would.
For a flight from Vietnam to Kailua-Kona, you will be flying into Kona Intl. Kona Intl (KOA) is just 12.5 km from the center of the city.
Due to the rapidly changing circumstances due to COVID-19, airlines like Japan Airlines flying from Vietnam to Kona Intl have implemented new flexible change policies.