| Saint-Omer to Cassino | 843.84 mi (1,358.03 km) |
| Saint-Omer to Castagneto Carducci | 654.15 mi (1,052.76 km) |
| Saint-Omer to Castano Primo | 467.55 mi (752.45 km) |
| Saint-Omer to Castel Bolognese | 627.93 mi (1,010.56 km) |
| Saint-Omer to Castel Gandolfo | 794.22 mi (1,278.18 km) |
| Saint-Omer to Castel Goffredo | 534.09 mi (859.53 km) |
| Saint-Omer to Castel Maggiore | 600.83 mi (966.94 km) |
| Saint-Omer to Castel Mella | 513.16 mi (825.85 km) |
| Saint-Omer to Castel San Giorgio | 910.50 mi (1,465.31 km) |
| Saint-Omer to Castel San Giovanni | 514.68 mi (828.30 km) |
| Saint-Omer to Castel San Pietro Terme | 616.53 mi (992.21 km) |
| Saint-Omer to Castel Volturno | 871.45 mi (1,402.46 km) |
| Saint-Omer to Castelbuono | 1,058.36 mi (1,703.27 km) |
| Saint-Omer to Casteldaccia | 1,036.35 mi (1,667.85 km) |
| Saint-Omer to Castelfidardo | 729.91 mi (1,174.68 km) |
