The most popular way to get from Tallinn to Stockholm is certainly a ferry. You can go with a transfer to Helsinki, using the services of carriers Linda Line and Viking Line, and you can directly. The non-stop flights are organized daily by Tallink Silja (it's just Tallink). The only drawback - a long journey, about 14 hours.

Faster - in an hour, you can fly from Tallinn to Stockholm. Flights are carried out on all days of the week by Estonian Air, SAS, Ryanair, etc.

You should not even try to get to Stockholm from Tallinn by land. You can not get there by train or bus without a transfer, and traveling by rail, you will first need to get to Moscow