<p>Mermaid Transportation offers shuttling from Bowdoin, Colby, and Bates to Boston Logan / Manchester Airports and also from the airport to the above colleges. Portland Airport is very close to Brunswick, you can take a taxi. Also, the “Downeaster” on Amtrack from Portland-Boston. It’s not too difficult. It is also easy to catch a ride with someone who has a car or split a cab fare with several people if you are going to the same airport.</p>