Nantucket Memorial Airport

Overview

Nantucket Memorial Airport, identified as ACK and KACK, is the main air gateway to Nantucket, serving the island community and visitors arriving from the mainland United States. This medium airport sits just 47 feet above sea level, which suits its low-lying coastal setting and helps explain its close connection to the island’s weather and maritime character. For travelers, it is best thought of as a practical arrival point that places you within easy reach of Nantucket’s beaches, town center, inns, and seasonal attractions.

What Travelers Should Know

• The airport serves Nantucket in the America/New_York time zone, so arrivals and departures follow Eastern Time.
• Two lighted asphalt runways support operations: 06/24 at 6,303 feet and 15/33 at 4,500 feet.
• Because it is on an island, flight schedules can be more sensitive to coastal weather than at some inland airports.
• Its medium-airport scale usually means a more straightforward, less overwhelming experience than major hub airports.

Why It Matters

For most visitors, Nantucket Memorial Airport is part of the island experience rather than just a transport stop. Its size makes arrivals feel relatively simple, while the runway infrastructure allows it to handle regular passenger traffic efficiently. If you are planning a trip, the most useful mindset is to treat ACK as a convenient island access point: check flight times carefully, allow for weather-related changes during busy travel periods, and expect an airport geared toward getting you onto Nantucket quickly rather than offering the sprawling facilities of a large mainland terminal.