| Blagoevgrad to Opwijk | 1,086.60 mi (1,748.71 km) |
| Blagoevgrad to Ostend | 1,143.64 mi (1,840.51 km) |
| Blagoevgrad to Oud-Heverlee | 1,063.66 mi (1,711.79 km) |
| Blagoevgrad to Oud-Turnhout | 1,067.75 mi (1,718.37 km) |
| Blagoevgrad to Oudenaarde | 1,105.69 mi (1,779.44 km) |
| Blagoevgrad to Oudenburg | 1,139.22 mi (1,833.40 km) |
| Blagoevgrad to Oupeye | 1,022.05 mi (1,644.83 km) |
| Blagoevgrad to Overijse | 1,067.22 mi (1,717.52 km) |
| Blagoevgrad to Overpelt | 1,048.08 mi (1,686.72 km) |
| Blagoevgrad to Paal | 1,051.12 mi (1,691.62 km) |
| Blagoevgrad to Peer | 1,043.77 mi (1,679.78 km) |
| Blagoevgrad to Pepinster | 1,010.63 mi (1,626.46 km) |
| Blagoevgrad to Peruwelz | 1,096.47 mi (1,764.60 km) |
| Blagoevgrad to Perwez | 1,051.21 mi (1,691.76 km) |
| Blagoevgrad to Philippeville | 1,048.60 mi (1,687.56 km) |
