| Groningen to Solofra | 938.88 mi (1,510.97 km) |
| Groningen to Somma Lombardo | 529.19 mi (851.65 km) |
| Groningen to Somma Vesuviana | 928.58 mi (1,494.40 km) |
| Groningen to Sommacampagna | 573.25 mi (922.56 km) |
| Groningen to Sona | 570.81 mi (918.63 km) |
| Groningen to Sondrio | 508.65 mi (818.59 km) |
| Groningen to Sora | 859.09 mi (1,382.58 km) |
| Groningen to Sorbolo | 604.25 mi (972.45 km) |
| Groningen to Soresina | 567.50 mi (913.31 km) |
| Groningen to Sorisole | 534.92 mi (860.87 km) |
| Groningen to Sorrento | 943.27 mi (1,518.04 km) |
| Groningen to Sorso | 863.15 mi (1,389.11 km) |
| Groningen to Sortino | 1,181.12 mi (1,900.84 km) |
| Groningen to Soverato Marina | 1,110.33 mi (1,786.91 km) |
| Groningen to Sovicille | 718.74 mi (1,156.69 km) |
