| Guichen to Somma Lombardo | 520.16 mi (837.12 km) |
| Guichen to Somma Vesuviana | 936.30 mi (1,506.82 km) |
| Guichen to Sommacampagna | 624.24 mi (1,004.62 km) |
| Guichen to Sona | 622.66 mi (1,002.08 km) |
| Guichen to Sondrio | 562.25 mi (904.85 km) |
| Guichen to Sora | 867.55 mi (1,396.19 km) |
| Guichen to Sorbolo | 621.06 mi (999.50 km) |
| Guichen to Soresina | 582.40 mi (937.28 km) |
| Guichen to Sorisole | 562.00 mi (904.45 km) |
| Guichen to Sorrento | 943.94 mi (1,519.13 km) |
| Guichen to Sorso | 711.35 mi (1,144.80 km) |
| Guichen to Sortino | 1,131.42 mi (1,820.84 km) |
| Guichen to Soverato Marina | 1,118.68 mi (1,800.35 km) |
| Guichen to Sovicille | 706.59 mi (1,137.15 km) |
| Guichen to Spello | 779.09 mi (1,253.82 km) |
