| Boppard to Santiago do Cacem | 1,163.39 mi (1,872.30 km) |
| Boppard to Santo Andre | 1,163.28 mi (1,872.11 km) |
| Boppard to Santo Tirso | 984.68 mi (1,584.69 km) |
| Boppard to Sao Bras de Alportel | 1,184.53 mi (1,906.32 km) |
| Boppard to Sao Felix da Marinha | 1,004.95 mi (1,617.31 km) |
| Boppard to Sao Joao da Madeira | 1,006.67 mi (1,620.08 km) |
| Boppard to Sao Joao de Ver | 1,006.18 mi (1,619.29 km) |
| Boppard to Sao Mamede de Infesta | 996.06 mi (1,603.01 km) |
| Boppard to Sao Pedro do Sul | 998.55 mi (1,607.00 km) |
| Boppard to Satao | 987.37 mi (1,589.02 km) |
| Boppard to Seia | 1,002.05 mi (1,612.65 km) |
| Boppard to Senhora da Hora | 998.64 mi (1,607.15 km) |
| Boppard to Serpa | 1,130.93 mi (1,820.05 km) |
| Boppard to Serta | 1,048.08 mi (1,686.72 km) |
| Boppard to Sesimbra | 1,154.12 mi (1,857.37 km) |
