| Mont-de-Marsan to Carpentras | 276.10 mi (444.34 km) |
| Mont-de-Marsan to Carquefou | 240.23 mi (386.62 km) |
| Mont-de-Marsan to Carqueiranne | 333.95 mi (537.45 km) |
| Mont-de-Marsan to Carrieres-sous-Poissy | 369.73 mi (595.02 km) |
| Mont-de-Marsan to Carrieres-sur-Seine | 371.42 mi (597.74 km) |
| Mont-de-Marsan to Carros | 383.40 mi (617.03 km) |
| Mont-de-Marsan to Carvin | 484.12 mi (779.12 km) |
| Mont-de-Marsan to Castanet-Tolosan | 103.10 mi (165.92 km) |
| Mont-de-Marsan to Castelginest | 97.35 mi (156.67 km) |
| Mont-de-Marsan to Castelnau-le-Lez | 220.32 mi (354.57 km) |
| Mont-de-Marsan to Castelnaudary | 128.97 mi (207.56 km) |
| Mont-de-Marsan to Castelsarrasin | 80.58 mi (129.68 km) |
| Mont-de-Marsan to Castres | 138.71 mi (223.24 km) |
| Mont-de-Marsan to Caudebec-les-Elbeuf | 379.38 mi (610.56 km) |
| Mont-de-Marsan to Caudry | 468.40 mi (753.81 km) |
