| Castrolibero to Zottegem | 998.49 mi (1,606.91 km) |
| Castrolibero to Zulte | 1,011.78 mi (1,628.29 km) |
| Castrolibero to Zwevegem | 1,008.83 mi (1,623.55 km) |
| Castrolibero to Zwijndrecht | 1,001.78 mi (1,612.20 km) |
| Castrolibero to Asenovgrad | 490.73 mi (789.75 km) |
| Castrolibero to Aytos | 621.14 mi (999.63 km) |
| Castrolibero to Balchik | 681.29 mi (1,096.43 km) |
| Castrolibero to Bankya | 430.27 mi (692.45 km) |
| Castrolibero to Bansko | 420.13 mi (676.13 km) |
| Castrolibero to Berkovitsa | 449.44 mi (723.30 km) |
| Castrolibero to Blagoevgrad | 406.10 mi (653.56 km) |
| Castrolibero to Botevgrad | 466.42 mi (750.62 km) |
| Castrolibero to Burgas | 627.71 mi (1,010.20 km) |
| Castrolibero to Byala Slatina | 492.50 mi (792.61 km) |
| Castrolibero to Chirpan | 517.07 mi (832.14 km) |
