To save on the cost of your flight from Maine to Peru, book at least 49 days before your planned departure. Booking around this time can save you about 10% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $607 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $645.
Due to multiple factors, expect to potentially pay more when booking in December. For low rates, May can be a great choice for travel to Peru. Flights to Peru from Maine in May are about $571 on average during May, but can be found for as low as $435.