Visitors come to the island by one of two ferry lines or one of several airlines. Both of the ferry lines depart from Hyannis on Cape Cod. The only ferry service that accommodates vehicles is the Steamship Authority and advance reservations are necessary. Reservations are also recommended for both ferry lines' high speed ferries.

There is year-round direct air service from Hyannis, Boston, Martha's Vineyard, and New Bedford. Seasonal service is available from Providence, RI, LaGuardia, NY, JFK, NY, Newark, NJ, Philadelphia, PA, and Washington, DC.