By plane

Olbia Costa Smeralda Airport
This airport, located on the northeast coast offers National and International connections.

Alghero Fertilia Airport
Alghero airport is the place Ryanair flys to. Daily connections to Milan, Pisa, Rome, Barcelona, Frankfurt, London, Liverpool and more.

Cagliari-Elmas Airport
Bergamo, Bologna, Florence, Genova, Milan, Naples, Olbia
Pisa, Rome, Turin, Venice, Verona, Dusseldorf, Geneva,
London, Luxenbourg,
Munich, Paris

By Sea

Port of Cagliari
Daily connections with Civitavecchia, Genova, Naples,
Palermo and Trapani

Port of Olbia
Daily connections with Civitavecchia, Genova and  Livorno 

Port of Porto Torres
Daily connections with Genova, Ajaccio, Marseille,
Propriano

Moving around Sardinia

There is a network of buses and a railway line connecting the north of Sardinia with the South, but the service is not always reliable and is generally quite slow. Taxis are available, but are very expensive.
The best way to move around the island is by hired car, there are many companies to choose from at competitive prices.