| Northolt to Carpentras | 575.05 mi (925.45 km) |
| Northolt to Carquefou | 297.93 mi (479.47 km) |
| Northolt to Carqueiranne | 656.73 mi (1,056.90 km) |
| Northolt to Carrieres-sous-Poissy | 208.71 mi (335.88 km) |
| Northolt to Carrieres-sur-Seine | 216.72 mi (348.77 km) |
| Northolt to Carros | 641.43 mi (1,032.28 km) |
| Northolt to Carvin | 161.91 mi (260.58 km) |
| Northolt to Castanet-Tolosan | 561.65 mi (903.88 km) |
| Northolt to Castelginest | 549.01 mi (883.54 km) |
| Northolt to Castelnau-le-Lez | 581.38 mi (935.64 km) |
| Northolt to Castelnaudary | 578.74 mi (931.40 km) |
| Northolt to Castelsarrasin | 523.14 mi (841.92 km) |
| Northolt to Castres | 562.38 mi (905.07 km) |
| Northolt to Caudebec-les-Elbeuf | 168.10 mi (270.54 km) |
| Northolt to Caudry | 192.00 mi (309.00 km) |
