| Buffalo to Opwijk | 3,745.85 mi (6,028.37 km) |
| Buffalo to Ostend | 3,688.70 mi (5,936.38 km) |
| Buffalo to Oud-Heverlee | 3,768.82 mi (6,065.33 km) |
| Buffalo to Oud-Turnhout | 3,766.14 mi (6,061.01 km) |
| Buffalo to Oudenaarde | 3,726.61 mi (5,997.40 km) |
| Buffalo to Oudenburg | 3,693.11 mi (5,943.49 km) |
| Buffalo to Oupeye | 3,810.75 mi (6,132.81 km) |
| Buffalo to Overijse | 3,765.16 mi (6,059.44 km) |
| Buffalo to Overpelt | 3,785.98 mi (6,092.95 km) |
| Buffalo to Paal | 3,782.09 mi (6,086.68 km) |
| Buffalo to Peer | 3,790.03 mi (6,099.46 km) |
| Buffalo to Pepinster | 3,822.01 mi (6,150.93 km) |
| Buffalo to Peruwelz | 3,736.11 mi (6,012.68 km) |
| Buffalo to Perwez | 3,781.12 mi (6,085.13 km) |
| Buffalo to Philippeville | 3,784.01 mi (6,089.77 km) |
