Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from London to Whakatane as you normally would.
Whakatane (WHK) is the airport you will fly into if you book a flight from London to Whakatane. You should not have trouble finding flights to Whakatane from London; the airport handles an average of 0 inbound flights from London per day. You should also have plenty of airline options to choose from since 0 airlines have flights to the Whakatane airport from London. It is only a 5.0 mi journey from Whakatane (WHK) to Whakatane’s city centre.