| Plymstock to Sestu | 997.44 mi (1,605.22 km) |
| Plymstock to Settimo Torinese | 657.38 mi (1,057.95 km) |
| Plymstock to Seveso | 691.47 mi (1,112.81 km) |
| Plymstock to Sezze | 1,022.74 mi (1,645.94 km) |
| Plymstock to Siano | 1,117.73 mi (1,798.81 km) |
| Plymstock to Siena | 873.57 mi (1,405.87 km) |
| Plymstock to Signa | 844.49 mi (1,359.08 km) |
| Plymstock to Silea | 822.01 mi (1,322.90 km) |
| Plymstock to Silvi Paese | 1,016.72 mi (1,636.25 km) |
| Plymstock to Sinalunga | 893.69 mi (1,438.26 km) |
| Plymstock to Siniscola | 947.42 mi (1,524.73 km) |
| Plymstock to Sinnai | 1,000.74 mi (1,610.53 km) |
| Plymstock to Siracusa | 1,326.41 mi (2,134.66 km) |
| Plymstock to Solaro | 690.36 mi (1,111.03 km) |
| Plymstock to Soliera | 798.56 mi (1,285.16 km) |
