| Castel Bolognese to Montana | 571.98 mi (920.51 km) |
| Castel Bolognese to Nova Zagora | 723.64 mi (1,164.58 km) |
| Castel Bolognese to Novi Iskar | 587.21 mi (945.02 km) |
| Castel Bolognese to Novi Pazar | 769.31 mi (1,238.08 km) |
| Castel Bolognese to Omurtag | 733.88 mi (1,181.07 km) |
| Castel Bolognese to Panagyurishte | 633.47 mi (1,019.46 km) |
| Castel Bolognese to Parvomay | 691.95 mi (1,113.58 km) |
| Castel Bolognese to Pavlikeni | 677.82 mi (1,090.85 km) |
| Castel Bolognese to Pazardzhik | 646.69 mi (1,040.75 km) |
| Castel Bolognese to Pernik | 575.24 mi (925.76 km) |
| Castel Bolognese to Peshtera | 648.59 mi (1,043.80 km) |
| Castel Bolognese to Petrich | 611.37 mi (983.91 km) |
| Castel Bolognese to Pleven | 641.08 mi (1,031.72 km) |
| Castel Bolognese to Plovdiv | 668.09 mi (1,075.18 km) |
| Castel Bolognese to Pomorie | 801.31 mi (1,289.59 km) |
