Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Hanoi to Isle of Wight as you normally would.
Hanoi Noibai (HAN) is the airport you will fly out of if you book a flight from Hanoi to Isle of Wight. You should not have trouble finding flights to Isle of Wight from Noibai; the airport handles an average of 0 outbound flights to Isle of Wight per day. You should also have plenty of airline options to choose from since 0 airlines have flights from the Hanoi airport to Isle of Wight. It is only a 22.8 km journey to Noibai (HAN) from Hanoi’s city center.