| Union City to Opwijk | 5,504.75 mi (8,859.04 km) |
| Union City to Ostend | 5,455.27 mi (8,779.41 km) |
| Union City to Oud-Heverlee | 5,525.41 mi (8,892.29 km) |
| Union City to Oud-Turnhout | 5,508.72 mi (8,865.42 km) |
| Union City to Oudenaarde | 5,494.28 mi (8,842.19 km) |
| Union City to Oudenburg | 5,459.78 mi (8,786.67 km) |
| Union City to Oupeye | 5,559.37 mi (8,946.95 km) |
| Union City to Overijse | 5,524.29 mi (8,890.48 km) |
| Union City to Overpelt | 5,526.03 mi (8,893.28 km) |
| Union City to Paal | 5,528.69 mi (8,897.56 km) |
| Union City to Peer | 5,531.51 mi (8,902.11 km) |
| Union City to Pepinster | 5,571.76 mi (8,966.89 km) |
| Union City to Peruwelz | 5,511.21 mi (8,869.43 km) |
| Union City to Perwez | 5,540.65 mi (8,916.81 km) |
| Union City to Philippeville | 5,555.53 mi (8,940.77 km) |
