Boston
Staying on the Boston side puts you within walking distance of the arena, and several of the closest addresses are apartment-style properties. DoubleTree Suites by Hilton Hotel Boston Cambridge is 900 m away, about 13 minutes on foot, with an indoor pool, a lounge and family rooms. Packard's Corner Apartments by Atlas is the nearest of all at 560 m, roughly 8 minutes. Boston Historical Urban Oasis, at 920 m, adds free car parking and a kitchen, while Spacious Apartment in Boston, 970 m away, keeps things simple with a kitchen and air conditioning.
Cambridge
The Cambridge side of the river has its own cluster of hotels close to Agganis Arena. Courtyard by Marriott Boston Cambridge is 780 m away, about 12 minutes on foot, and scores 4.0 out of 5 from 1281 reviews, with parking, breakfast, a lounge and a fitness centre. Hyatt Regency Boston Cambridge, 1.1 km away, scores 4.1 from 2617 reviews and adds a lounge and pets allowed. Luxury 2BR Apt Near Kendall Sq and Modern Apt Near Charles River both sit 1.1 km out, roughly 16 minutes, and include a fitness centre and a kitchen.