To save on the cost of your flight from Maine to London, book at least 51 days before your planned departure. Booking around this time can save you about 38% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $813 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $886.
Our data shows that February tends to be the cheapest month to fly to London from Maine. Users have commonly found prices around $634 for the month, but tickets can be as low as $394. Due to multiple factors, prepare for potentially higher prices in June.