Steamship Authority

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The Steamship Authority is the largest ferry service to the Island of Nantucket from Cape Cod. We offer the lowest fares and the most frequent daily departures for passengers, automobiles and trucks. Our ferries to Nantucket depart from the iconic Hyannis Harbor. Please note, we offer limited premium on-site parking as well as off-site parking with free shuttle service. Check our mobile site for current parking and trip status. Our seasonal high-speed passenger-only ferry, the M/V Iyanough, gets you to Nantucket - dock-to-dock - in just an hour. Enjoy great savings with our special $50 same-day, round-trip, available Monday - Thursday, April - December. For a perfect day trip Nantucket makes wonderful destinations - with magnificent beaches, charming scenery and fabulous shopping and dining.The Steamship Authority is the largest ferry service to the Island of Nantucket from Cape Cod. We offer the lowest fares and the most frequent daily departures for passengers, automobiles and trucks. Our ferries to Nantucket depart from the iconic Hyannis Harbor. Please note, we offer limited premium on-site parking as well as off-site parking with free shuttle service. Check our mobile site for current parking and trip status. Our seasonal high-speed passenger-only ferry, the M/V Iyanough, gets you to Nantucket - dock-to-dock - in just an hour. Enjoy great savings with our special $50 same-day, round-trip, available Monday - Thursday, April - December. For a perfect day trip Nantucket makes wonderful destinations - with magnificent beaches, charming scenery and fabulous shopping and dining.