Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from London Stansted Airport to Bangor, Maine as you normally would.
Bangor (BGR) is the airport you will fly into if you book a flight from London Stansted to Bangor. You should not have trouble finding flights to Bangor from London Stansted; the airport handles an average of 0 inbound flights from London Stansted per day. You should also have plenty of airline options to choose from since 0 airlines have flights to the Bangor airport from London Stansted. It is only a 2.3 mi journey from Bangor (BGR) to Bangor’s city centre.