| Williamstown to San Lorenzo de Descardazar | 4,017.64 mi (6,465.77 km) |
| Williamstown to San Lorenzo de El Escorial | 3,634.41 mi (5,849.01 km) |
| Williamstown to San Martin de la Vega | 3,672.64 mi (5,910.54 km) |
| Williamstown to San Martin de Valdeiglesias | 3,628.40 mi (5,839.34 km) |
| Williamstown to San Pedro de Ribas | 3,895.35 mi (6,268.97 km) |
| Williamstown to San Roque | 3,701.83 mi (5,957.52 km) |
| Williamstown to San Sebastian de la Gomera | 3,355.45 mi (5,400.08 km) |
| Williamstown to San Sebastian de los Reyes | 3,660.52 mi (5,891.03 km) |
| Williamstown to San Vicente de Baracaldo | 3,615.54 mi (5,818.65 km) |
| Williamstown to San Vicente de Castellet | 3,887.38 mi (6,256.14 km) |
| Williamstown to San Vicente del Raspeig | 3,873.58 mi (6,233.92 km) |
| Williamstown to San Vicente dels Horts | 3,902.36 mi (6,280.23 km) |
| Williamstown to Sangenjo | 3,363.83 mi (5,413.56 km) |
| Williamstown to Sanlucar de Barrameda | 3,636.75 mi (5,852.79 km) |
| Williamstown to Sanlucar la Mayor | 3,625.93 mi (5,835.37 km) |
