Castelldefels is easily accessible thanks to its proximity to Barcelona’s El Prat International Airport, just a 20-minute drive away. The city is also well connected to Barcelona via commuter trains (Rodalies de Catalunya), with frequent services that take about 30 minutes. There are also excellent bus connections, making it easy to reach surrounding towns and cities.
Within Castelldefels, public transportation includes buses that connect different parts of the city, as well as nearby locations such as Gavà and Sitges. The city’s flat terrain and scenic views also make cycling a popular way to get around, with several bike rental shops available. For those who prefer to explore on foot, the city is very walkable, especially along the beach promenade, which stretches for kilometers.