| Porsgrunn to Santiago do Cacem | 1,670.67 mi (2,688.69 km) |
| Porsgrunn to Santo Andre | 1,669.64 mi (2,687.02 km) |
| Porsgrunn to Santo Tirso | 1,457.46 mi (2,345.56 km) |
| Porsgrunn to Sao Bras de Alportel | 1,708.84 mi (2,750.12 km) |
| Porsgrunn to Sao Felix da Marinha | 1,479.60 mi (2,381.19 km) |
| Porsgrunn to Sao Joao da Madeira | 1,485.01 mi (2,389.90 km) |
| Porsgrunn to Sao Joao de Ver | 1,482.91 mi (2,386.51 km) |
| Porsgrunn to Sao Mamede de Infesta | 1,468.79 mi (2,363.79 km) |
| Porsgrunn to Sao Pedro do Sul | 1,484.63 mi (2,389.28 km) |
| Porsgrunn to Satao | 1,478.26 mi (2,379.03 km) |
| Porsgrunn to Seia | 1,497.11 mi (2,409.37 km) |
| Porsgrunn to Senhora da Hora | 1,470.84 mi (2,367.09 km) |
| Porsgrunn to Serpa | 1,652.09 mi (2,658.78 km) |
| Porsgrunn to Serta | 1,544.93 mi (2,486.33 km) |
| Porsgrunn to Sesimbra | 1,652.38 mi (2,659.24 km) |
