| Portes-les-Valence to Castelfiorentino | 313.97 mi (505.29 km) |
| Portes-les-Valence to Castelfranco di Sopra | 341.68 mi (549.88 km) |
| Portes-les-Valence to Castelfranco di Sotto | 301.53 mi (485.27 km) |
| Portes-les-Valence to Castelfranco Emilia | 303.68 mi (488.72 km) |
| Portes-les-Valence to Castelfranco Veneto | 347.38 mi (559.05 km) |
| Portes-les-Valence to Castellabate | 602.33 mi (969.35 km) |
| Portes-les-Valence to Castellammare del Golfo | 628.35 mi (1,011.23 km) |
| Portes-les-Valence to Castellammare di Stabia | 565.59 mi (910.23 km) |
| Portes-les-Valence to Castellamonte | 142.62 mi (229.53 km) |
| Portes-les-Valence to Castellana Grotte | 679.69 mi (1,093.86 km) |
| Portes-les-Valence to Castellaneta | 677.31 mi (1,090.02 km) |
| Portes-les-Valence to Castellanza | 202.34 mi (325.63 km) |
| Portes-les-Valence to Castellarano | 290.70 mi (467.84 km) |
| Portes-les-Valence to Castelleone | 240.03 mi (386.29 km) |
| Portes-les-Valence to Castelletto sopra Ticino | 191.65 mi (308.43 km) |
