| Killeen to Opwijk | 5,055.28 mi (8,135.68 km) |
| Killeen to Ostend | 4,998.52 mi (8,044.35 km) |
| Killeen to Oud-Heverlee | 5,078.16 mi (8,172.52 km) |
| Killeen to Oud-Turnhout | 5,073.80 mi (8,165.50 km) |
| Killeen to Oudenaarde | 5,036.86 mi (8,106.04 km) |
| Killeen to Oudenburg | 5,002.98 mi (8,051.52 km) |
| Killeen to Oupeye | 5,119.53 mi (8,239.08 km) |
| Killeen to Overijse | 5,074.77 mi (8,167.05 km) |
| Killeen to Overpelt | 5,093.51 mi (8,197.22 km) |
| Killeen to Paal | 5,090.38 mi (8,192.17 km) |
| Killeen to Peer | 5,097.77 mi (8,204.07 km) |
| Killeen to Pepinster | 5,131.01 mi (8,257.56 km) |
| Killeen to Peruwelz | 5,047.23 mi (8,122.72 km) |
| Killeen to Perwez | 5,090.90 mi (8,193.01 km) |
| Killeen to Philippeville | 5,095.10 mi (8,199.78 km) |
