| Bideford to Sestu | 1,033.65 mi (1,663.50 km) |
| Bideford to Settimo Torinese | 684.82 mi (1,102.11 km) |
| Bideford to Seveso | 715.12 mi (1,150.88 km) |
| Bideford to Sezze | 1,050.72 mi (1,690.96 km) |
| Bideford to Siano | 1,144.90 mi (1,842.55 km) |
| Bideford to Siena | 900.22 mi (1,448.77 km) |
| Bideford to Signa | 870.40 mi (1,400.77 km) |
| Bideford to Silea | 841.27 mi (1,353.90 km) |
| Bideford to Silvi Paese | 1,041.38 mi (1,675.95 km) |
| Bideford to Sinalunga | 920.02 mi (1,480.63 km) |
| Bideford to Siniscola | 981.27 mi (1,579.20 km) |
| Bideford to Sinnai | 1,036.82 mi (1,668.59 km) |
| Bideford to Siracusa | 1,357.99 mi (2,185.48 km) |
| Bideford to Solaro | 714.19 mi (1,149.38 km) |
| Bideford to Soliera | 822.27 mi (1,323.32 km) |
