| Gravelines to Settimo Torinese | 480.68 mi (773.58 km) |
| Gravelines to Seveso | 489.49 mi (787.76 km) |
| Gravelines to Sezze | 836.51 mi (1,346.23 km) |
| Gravelines to Siano | 924.94 mi (1,488.54 km) |
| Gravelines to Siena | 682.83 mi (1,098.91 km) |
| Gravelines to Signa | 650.10 mi (1,046.23 km) |
| Gravelines to Silea | 594.08 mi (956.07 km) |
| Gravelines to Silvi Paese | 811.50 mi (1,305.98 km) |
| Gravelines to Sinalunga | 700.46 mi (1,127.27 km) |
| Gravelines to Siniscola | 805.56 mi (1,296.43 km) |
| Gravelines to Sinnai | 876.84 mi (1,411.13 km) |
| Gravelines to Siracusa | 1,158.93 mi (1,865.12 km) |
| Gravelines to Solaro | 489.42 mi (787.65 km) |
| Gravelines to Soliera | 593.06 mi (954.44 km) |
| Gravelines to Solofra | 928.06 mi (1,493.57 km) |
