| Ottawa to Carpentras | 4,489.45 mi (7,225.07 km) |
| Ottawa to Carquefou | 4,103.23 mi (6,603.51 km) |
| Ottawa to Carqueiranne | 4,569.41 mi (7,353.75 km) |
| Ottawa to Carrieres-sous-Poissy | 4,187.42 mi (6,739.00 km) |
| Ottawa to Carrieres-sur-Seine | 4,198.50 mi (6,756.83 km) |
| Ottawa to Carros | 4,588.22 mi (7,384.02 km) |
| Ottawa to Carvin | 4,168.80 mi (6,709.03 km) |
| Ottawa to Castanet-Tolosan | 4,362.31 mi (7,020.46 km) |
| Ottawa to Castelginest | 4,352.92 mi (7,005.35 km) |
| Ottawa to Castelnau-le-Lez | 4,458.30 mi (7,174.95 km) |
| Ottawa to Castelnaudary | 4,388.93 mi (7,063.30 km) |
| Ottawa to Castelsarrasin | 4,326.38 mi (6,962.64 km) |
| Ottawa to Castres | 4,390.76 mi (7,066.25 km) |
| Ottawa to Caudebec-les-Elbeuf | 4,136.07 mi (6,656.36 km) |
| Ottawa to Caudry | 4,198.96 mi (6,757.57 km) |
