| Boulogne-sur-Mer to Montana | 1,130.00 mi (1,818.55 km) |
| Boulogne-sur-Mer to Nova Zagora | 1,282.28 mi (2,063.63 km) |
| Boulogne-sur-Mer to Novi Iskar | 1,159.33 mi (1,865.76 km) |
| Boulogne-sur-Mer to Novi Pazar | 1,299.72 mi (2,091.70 km) |
| Boulogne-sur-Mer to Omurtag | 1,275.77 mi (2,053.15 km) |
| Boulogne-sur-Mer to Panagyurishte | 1,205.80 mi (1,940.55 km) |
| Boulogne-sur-Mer to Parvomay | 1,264.76 mi (2,035.44 km) |
| Boulogne-sur-Mer to Pavlikeni | 1,224.16 mi (1,970.09 km) |
| Boulogne-sur-Mer to Pazardzhik | 1,224.23 mi (1,970.21 km) |
| Boulogne-sur-Mer to Pernik | 1,154.48 mi (1,857.95 km) |
| Boulogne-sur-Mer to Peshtera | 1,229.76 mi (1,979.10 km) |
| Boulogne-sur-Mer to Petrich | 1,212.72 mi (1,951.68 km) |
| Boulogne-sur-Mer to Pleven | 1,188.42 mi (1,912.57 km) |
| Boulogne-sur-Mer to Plovdiv | 1,243.44 mi (2,001.12 km) |
| Boulogne-sur-Mer to Pomorie | 1,346.74 mi (2,167.37 km) |
