Logan to the pier on two Silver Line buses
There is a transit route if you're travelling light. The Silver Line SL1 bus picks up at the Logan terminals and is free from the airport. Ride it to the Seaport, change to an SL2 bus toward Drydock Avenue and the Design Center (normal bus fare), and get off at Drydock Avenue, the third stop, which is near the cruiseport.
The SL2 also runs to South Station Transportation Center, about half a mile from Boston Common, which makes a pre-cruise night downtown workable without a cab.
Official parking is a weekly rate, booked ahead
The official cruise lot is Massport's Lot D3 at 492 Summer Street, about 0.6 miles from the terminal and run by SP+. As of late 2025 it was $189 a week for a standard vehicle, oversize vehicles priced at booking, and it has to be reserved online in advance through Parking.com - a courtesy shuttle runs to the ship.
Commercial garages closer in, such as the Marine Park Garage a tenth of a mile away, were advertising from about $20 a day in the same period, with weekday and weekend prices varying.
Sources: newenglandtravelplanner.com, cruisehive.com