| Sumner to Sestu | 5,750.99 mi (9,255.32 km) |
| Sumner to Settimo Torinese | 5,371.93 mi (8,645.28 km) |
| Sumner to Seveso | 5,377.02 mi (8,653.48 km) |
| Sumner to Sezze | 5,723.24 mi (9,210.67 km) |
| Sumner to Siano | 5,805.81 mi (9,343.55 km) |
| Sumner to Siena | 5,570.35 mi (8,964.62 km) |
| Sumner to Signa | 5,536.74 mi (8,910.52 km) |
| Sumner to Silea | 5,453.79 mi (8,777.02 km) |
| Sumner to Silvi Paese | 5,685.22 mi (9,149.47 km) |
| Sumner to Sinalunga | 5,586.49 mi (8,990.59 km) |
| Sumner to Siniscola | 5,691.69 mi (9,159.90 km) |
| Sumner to Sinnai | 5,753.85 mi (9,259.93 km) |
| Sumner to Siracusa | 6,049.24 mi (9,735.31 km) |
| Sumner to Solaro | 5,377.35 mi (8,654.01 km) |
| Sumner to Soliera | 5,475.35 mi (8,811.72 km) |
