| Viareggio to Setubal | 1,058.51 mi (1,703.50 km) |
| Viareggio to Sever do Vouga | 973.47 mi (1,566.65 km) |
| Viareggio to Silves | 1,081.36 mi (1,740.28 km) |
| Viareggio to Sines | 1,075.28 mi (1,730.50 km) |
| Viareggio to Sintra | 1,074.26 mi (1,728.86 km) |
| Viareggio to Sobrado de Paiva | 961.96 mi (1,548.12 km) |
| Viareggio to Sobral de Monte Agraco | 1,056.35 mi (1,700.04 km) |
| Viareggio to Soure | 1,002.96 mi (1,614.11 km) |
| Viareggio to Tabua | 965.52 mi (1,553.85 km) |
| Viareggio to Tavira | 1,046.87 mi (1,684.78 km) |
| Viareggio to Tomar | 1,004.11 mi (1,615.96 km) |
| Viareggio to Tondela | 964.45 mi (1,552.13 km) |
| Viareggio to Torre de Moncorvo | 902.26 mi (1,452.04 km) |
| Viareggio to Torres Novas | 1,013.46 mi (1,631.01 km) |
| Viareggio to Torres Vedras | 1,060.07 mi (1,706.02 km) |
