2001 Prospect AveHelena, MT 59601 Phone: +1 406-442-3280Fax: +1 406-442-3108Toll Free: +800-DAYS-INN Hotel E-mailHotel Website Classification 3 Superior Tourist Class Commission Rooms Rates 10% 89 - Hoteliers! Is your information accurate? Update Here Days Inn Helena Location & Neighborhood East edge of city, adjacent to I-15 - 3 MI, 5 min from Helena Regl airport.