September is a smart month to travel from Myrtle Beach International Airport (MYR) to Portland International Jetport (PWM) because fares often dip after summer, while Maine starts showing early fall color late in the month. Travelers should watch Atlantic hurricane season updates affecting the Myrtle Beach area, but overall expect warm departure weather in South Carolina and crisp, cool arrival conditions in Maine. Use fare alerts and midweek travel to maximize savings.
September arrivals at Portland International Jetport (PWM) offer pleasant weather, fewer crowds than peak summer, and early fall foliage starting inland and along the coast. Travelers connecting from Myrtle Beach International Airport (MYR) should prepare for cooler temperatures and plan car rental pickups if visiting Acadia National Park or coastal towns. Expect higher demand for rentals and accommodations later in September during peak foliage weekends.