| Castel Volturno to Devnya | 714.38 mi (1,149.68 km) |
| Castel Volturno to Dimitrovgrad | 607.57 mi (977.79 km) |
| Castel Volturno to Dobrich | 731.08 mi (1,176.56 km) |
| Castel Volturno to Dospat | 532.94 mi (857.68 km) |
| Castel Volturno to Dupnitsa | 482.12 mi (775.90 km) |
| Castel Volturno to Elhovo | 657.44 mi (1,058.04 km) |
| Castel Volturno to Etropole | 532.30 mi (856.66 km) |
| Castel Volturno to Gabrovo | 599.36 mi (964.57 km) |
| Castel Volturno to Gorna Oryahovitsa | 620.49 mi (998.58 km) |
| Castel Volturno to Gotse Delchev | 510.46 mi (821.51 km) |
| Castel Volturno to Harmanli | 622.67 mi (1,002.09 km) |
| Castel Volturno to Haskovo | 605.55 mi (974.53 km) |
| Castel Volturno to Ihtiman | 518.96 mi (835.19 km) |
| Castel Volturno to Isperih | 683.66 mi (1,100.25 km) |
| Castel Volturno to Kardzhali | 594.89 mi (957.38 km) |
