| Gujan-Mestras to Somma Lombardo | 480.99 mi (774.07 km) |
| Gujan-Mestras to Somma Vesuviana | 826.89 mi (1,330.75 km) |
| Gujan-Mestras to Sommacampagna | 583.87 mi (939.64 km) |
| Gujan-Mestras to Sona | 583.10 mi (938.41 km) |
| Gujan-Mestras to Sondrio | 540.56 mi (869.95 km) |
| Gujan-Mestras to Sora | 765.65 mi (1,232.20 km) |
| Gujan-Mestras to Sorbolo | 564.84 mi (909.03 km) |
| Gujan-Mestras to Soresina | 535.52 mi (861.84 km) |
| Gujan-Mestras to Sorisole | 527.28 mi (848.58 km) |
| Gujan-Mestras to Sorrento | 830.75 mi (1,336.96 km) |
| Gujan-Mestras to Sorso | 556.25 mi (895.19 km) |
| Gujan-Mestras to Sortino | 983.89 mi (1,583.42 km) |
| Gujan-Mestras to Soverato Marina | 995.36 mi (1,601.88 km) |
| Gujan-Mestras to Sovicille | 618.23 mi (994.95 km) |
| Gujan-Mestras to Spello | 693.53 mi (1,116.12 km) |
