| Buckingham to Sestu | 1,001.03 mi (1,611.00 km) |
| Buckingham to Settimo Torinese | 619.54 mi (997.06 km) |
| Buckingham to Seveso | 635.07 mi (1,022.05 km) |
| Buckingham to Sezze | 980.73 mi (1,578.33 km) |
| Buckingham to Siano | 1,070.88 mi (1,723.42 km) |
| Buckingham to Siena | 827.30 mi (1,331.40 km) |
| Buckingham to Signa | 795.19 mi (1,279.73 km) |
| Buckingham to Silea | 744.46 mi (1,198.09 km) |
| Buckingham to Silvi Paese | 959.41 mi (1,544.02 km) |
| Buckingham to Sinalunga | 845.58 mi (1,360.83 km) |
| Buckingham to Siniscola | 937.41 mi (1,508.62 km) |
| Buckingham to Sinnai | 1,003.40 mi (1,614.82 km) |
| Buckingham to Siracusa | 1,299.85 mi (2,091.90 km) |
| Buckingham to Solaro | 634.77 mi (1,021.57 km) |
| Buckingham to Soliera | 740.13 mi (1,191.13 km) |
