The cruise port is approximately 15 to 20 minutes away from the Lisbon International Airport (Portela Airport). It is located at Administração do Porto de Lisboa, S.A. Rua da Junqueira, 941349-026 Lisboa. You can take a cab to and fro the airport, as cabs are available both at the airport and cruise port. A taxi ride may cost you around 15 Euros. You also have the option to rent a car. This would require you to take a second circular from the airport, then take the Alcantara exit at Norte-Sul. It is important to get hold of a map or GPS if you are driving a car so you will not get lost.
For more info, see our feature Lisbon Port FAQ