 These airports are served by regional providers such as Cape Air with Cessna 402s, PenAir with Saab 340s, and CommutAir with Embraer ERJ 145 aircraft.Many smaller airports are scattered throughout Maine, serving only general aviation traffic.The Eastport Municipal Airport, for example, is a city-owned public-use airport with 1,200 general aviation aircraft operations each year from single-engine and ultralight aircraft.