| Towcester to Solofra | 1,080.41 mi (1,738.74 km) |
| Towcester to Somma Lombardo | 625.13 mi (1,006.05 km) |
| Towcester to Somma Vesuviana | 1,064.93 mi (1,713.84 km) |
| Towcester to Sommacampagna | 710.47 mi (1,143.39 km) |
| Towcester to Sona | 708.27 mi (1,139.84 km) |
| Towcester to Sondrio | 639.51 mi (1,029.19 km) |
| Towcester to Sora | 992.77 mi (1,597.71 km) |
| Towcester to Sorbolo | 724.81 mi (1,166.47 km) |
| Towcester to Soresina | 682.89 mi (1,099.00 km) |
| Towcester to Sorisole | 653.46 mi (1,051.65 km) |
| Towcester to Sorrento | 1,076.31 mi (1,732.15 km) |
| Towcester to Sorso | 903.96 mi (1,454.78 km) |
| Towcester to Sortino | 1,293.57 mi (2,081.80 km) |
| Towcester to Soverato Marina | 1,253.24 mi (2,016.90 km) |
| Towcester to Sovicille | 832.45 mi (1,339.69 km) |
