A large bus company with routes throughout the Baltics, Europe and probably the best way to get to Riga from Tallinn - for the price. Ecolines is generally less expensive than other transportation options or bus lines, without compromising on comfort or quality. Conveniently you can book and pay for tickets via the internet, this option also comes with a discount and you won't have to wait in line at the ticket office. See website for additional info.