| Saint-Omer to Civita Castellana | 756.11 mi (1,216.84 km) |
| Saint-Omer to Civitanova Marche | 744.63 mi (1,198.36 km) |
| Saint-Omer to Civitavecchia | 749.35 mi (1,205.96 km) |
| Saint-Omer to Civitella in Val di Chiana | 673.11 mi (1,083.27 km) |
| Saint-Omer to Clusone | 487.19 mi (784.06 km) |
| Saint-Omer to Coccaglio | 504.34 mi (811.66 km) |
| Saint-Omer to Codigoro | 612.53 mi (985.77 km) |
| Saint-Omer to Codogno | 516.92 mi (831.91 km) |
| Saint-Omer to Codroipo | 591.99 mi (952.71 km) |
| Saint-Omer to Cogoleto | 530.26 mi (853.37 km) |
| Saint-Omer to Colle di Val d'Elsa | 656.38 mi (1,056.34 km) |
| Saint-Omer to Colle Salvetti | 626.16 mi (1,007.70 km) |
| Saint-Omer to Collecchio | 554.68 mi (892.67 km) |
| Saint-Omer to Colleferro | 805.87 mi (1,296.92 km) |
| Saint-Omer to Collegno | 462.35 mi (744.09 km) |
