It is very simple to find transport to Gotland. You can either select one of the ferry routes to the island or by flight.
Most people travel to Gotland by ferry and Destination Gotland operates two mainland ports, Nynashamn south of Stockholm and Oskarshamn in Småland. Regardless of your choice, the crossing takes approximately three hours.
If you choose to fly there are several cities to choose from and the flight time can be as short as 30 minutes. The number of routes and airlines increases during the summer but Gotland is also well connected to the Swedish mainland all year round.