| Viterbo to Santiago do Cacem | 1,135.72 mi (1,827.76 km) |
| Viterbo to Santo Andre | 1,137.38 mi (1,830.43 km) |
| Viterbo to Santo Tirso | 1,058.35 mi (1,703.26 km) |
| Viterbo to Sao Bras de Alportel | 1,118.75 mi (1,800.46 km) |
| Viterbo to Sao Felix da Marinha | 1,070.43 mi (1,722.69 km) |
| Viterbo to Sao Joao da Madeira | 1,065.59 mi (1,714.91 km) |
| Viterbo to Sao Joao de Ver | 1,067.92 mi (1,718.65 km) |
| Viterbo to Sao Mamede de Infesta | 1,066.93 mi (1,717.06 km) |
| Viterbo to Sao Pedro do Sul | 1,046.30 mi (1,683.86 km) |
| Viterbo to Satao | 1,029.56 mi (1,656.91 km) |
| Viterbo to Seia | 1,033.04 mi (1,662.51 km) |
| Viterbo to Senhora da Hora | 1,069.72 mi (1,721.55 km) |
| Viterbo to Serpa | 1,082.19 mi (1,741.61 km) |
| Viterbo to Serta | 1,064.62 mi (1,713.34 km) |
| Viterbo to Sesimbra | 1,145.18 mi (1,842.99 km) |
