| Saint-Omer to Ciampino | 789.69 mi (1,270.88 km) |
| Saint-Omer to Cicciano | 895.14 mi (1,440.59 km) |
| Saint-Omer to Cingoli | 723.87 mi (1,164.96 km) |
| Saint-Omer to Cinisello Balsamo | 481.06 mi (774.19 km) |
| Saint-Omer to Cinisi | 1,018.11 mi (1,638.48 km) |
| Saint-Omer to Cirie | 453.66 mi (730.09 km) |
| Saint-Omer to Ciro Marina | 1,065.92 mi (1,715.42 km) |
| Saint-Omer to Cislago | 468.08 mi (753.31 km) |
| Saint-Omer to Cisterna di Latina | 808.28 mi (1,300.80 km) |
| Saint-Omer to Cisternino | 1,003.40 mi (1,614.82 km) |
| Saint-Omer to Citta di Castello | 687.26 mi (1,106.04 km) |
| Saint-Omer to Citta Sant'Angelo | 795.86 mi (1,280.82 km) |
| Saint-Omer to Cittadella | 561.75 mi (904.04 km) |
| Saint-Omer to Cittanova | 1,090.35 mi (1,754.76 km) |
| Saint-Omer to Cividale del Friuli | 603.66 mi (971.50 km) |
