| Union to Montana | 5,446.19 mi (8,764.79 km) |
| Union to Nova Zagora | 5,591.62 mi (8,998.84 km) |
| Union to Novi Iskar | 5,479.71 mi (8,818.74 km) |
| Union to Novi Pazar | 5,591.57 mi (8,998.77 km) |
| Union to Omurtag | 5,576.21 mi (8,974.04 km) |
| Union to Panagyurishte | 5,524.64 mi (8,891.06 km) |
| Union to Parvomay | 5,581.75 mi (8,982.95 km) |
| Union to Pavlikeni | 5,530.13 mi (8,899.89 km) |
| Union to Pazardzhik | 5,544.56 mi (8,923.10 km) |
| Union to Pernik | 5,477.50 mi (8,815.18 km) |
| Union to Peshtera | 5,551.34 mi (8,934.02 km) |
| Union to Petrich | 5,541.17 mi (8,917.65 km) |
| Union to Pleven | 5,496.94 mi (8,846.48 km) |
| Union to Plovdiv | 5,562.26 mi (8,951.59 km) |
| Union to Pomorie | 5,644.99 mi (9,084.73 km) |
