Multi-day off-island trip, car has to come? This is the lot.
The Long-Term Parking Lot at Nantucket Memorial Airport (ACK) sits in front of Terminal 1 and gives you a basic surface option when you’re leaving the island for several days. It’s an open, uncovered lot, used heavily by residents heading to Boston or New York for longer trips. Pricing is posted on-site only, which is odd for an airport this busy, and there’s no clear online rate table beyond a “daily” charge.
This is true long-term parking: you leave the car, walk to the small terminal, and you’re at check-in in about 3–5 minutes on foot. No shuttle, no levels, no covered sections. It’s all surface parking, one lot, near the main building. Expect the daily fee to be higher than mainland airports, in line with island costs, and plan to pay per calendar day, not per 24-hour block.
Payment runs through the airport, not a third-party operator, and you should arrive with a backup plan if the lot is full on busy summer weekends or holiday periods like July 4 or Labor Day. Signage on Airport Road and around the terminal points you straight to “Long-Term Parking,” so once you turn off Nobadeer Farm Road toward ACK, just follow the official boards into the surface lot in front of Terminal 1.
Because information is opaque and no firm online daily rate is published, call the ACK administration office during business hours before a 3+ day trip and confirm the current per-day price and any maximum-stay rules. Build an extra 15 minutes into departure plans for finding a space, walking in, and sorting payment, especially in July and August when flights and parking both spike.