This is an affordable day trip to Nantucket for both visitors and residents on Cape Cod. Passengers can travel on the same day round-trip on the high-speed ferry from Hyannis to Nantucket Monday through Thursday at the following rates: Adults:$55.00 Senior Citizens*:$43.00 Children (ages 5-12):$27.50 To reserve this round-trip rate, visit to our website or call 508-495-FAST. * Eligibility restrictions apply.