| Saint-Omer to Cookeville (Tennessee) | 4,251.53 mi (6,842.18 km) |
| Saint-Omer to Coolidge (Arizona) | 5,393.56 mi (8,680.10 km) |
| Saint-Omer to Coon Rapids (Minnesota) | 4,118.37 mi (6,627.87 km) |
| Saint-Omer to Cooper City (Florida) | 4,529.66 mi (7,289.78 km) |
| Saint-Omer to Coos Bay (Oregon) | 5,183.94 mi (8,342.74 km) |
| Saint-Omer to Copiague (New York) | 3,552.89 mi (5,717.82 km) |
| Saint-Omer to Coppell (Texas) | 4,861.86 mi (7,824.40 km) |
| Saint-Omer to Copperas Cove (Texas) | 4,993.40 mi (8,036.11 km) |
| Saint-Omer to Coral Gables (Florida) | 4,546.20 mi (7,316.39 km) |
| Saint-Omer to Coral Springs (Florida) | 4,517.29 mi (7,269.88 km) |
| Saint-Omer to Coral Terrace (Florida) | 4,545.48 mi (7,315.25 km) |
| Saint-Omer to Coralville (Iowa) | 4,221.32 mi (6,793.56 km) |
| Saint-Omer to Coram (New York) | 3,528.01 mi (5,677.79 km) |
| Saint-Omer to Corcoran (California) | 5,475.89 mi (8,812.60 km) |
| Saint-Omer to Cordele (Georgia) | 4,383.79 mi (7,055.02 km) |
