| Portes-les-Valence to Cavaillon | 72.01 mi (115.89 km) |
| Portes-les-Valence to Cebazat | 108.72 mi (174.97 km) |
| Portes-les-Valence to Cenon | 264.79 mi (426.14 km) |
| Portes-les-Valence to Cergy | 316.69 mi (509.67 km) |
| Portes-les-Valence to Cernay | 230.43 mi (370.84 km) |
| Portes-les-Valence to Cesson | 276.92 mi (445.67 km) |
| Portes-les-Valence to Cesson-Sevigne | 381.02 mi (613.19 km) |
| Portes-les-Valence to Cestas | 272.57 mi (438.66 km) |
| Portes-les-Valence to Chalette-sur-Loing | 239.57 mi (385.56 km) |
| Portes-les-Valence to Challans | 352.30 mi (566.97 km) |
| Portes-les-Valence to Chalon-sur-Saone | 131.79 mi (212.09 km) |
| Portes-les-Valence to Chalons-en-Champagne | 283.22 mi (455.80 km) |
| Portes-les-Valence to Chamalieres | 107.68 mi (173.30 km) |
| Portes-les-Valence to Chambery | 69.69 mi (112.15 km) |
| Portes-les-Valence to Chambly | 321.39 mi (517.23 km) |
