| Upper Arlington to Opwijk | 4,041.06 mi (6,503.45 km) |
| Upper Arlington to Ostend | 3,983.88 mi (6,411.44 km) |
| Upper Arlington to Oud-Heverlee | 4,064.02 mi (6,540.41 km) |
| Upper Arlington to Oud-Turnhout | 4,061.39 mi (6,536.18 km) |
| Upper Arlington to Oudenaarde | 4,021.77 mi (6,472.41 km) |
| Upper Arlington to Oudenburg | 3,988.29 mi (6,418.54 km) |
| Upper Arlington to Oupeye | 4,105.98 mi (6,607.93 km) |
| Upper Arlington to Overijse | 4,060.36 mi (6,534.51 km) |
| Upper Arlington to Overpelt | 4,081.24 mi (6,568.12 km) |
| Upper Arlington to Paal | 4,077.33 mi (6,561.82 km) |
| Upper Arlington to Peer | 4,085.28 mi (6,574.63 km) |
| Upper Arlington to Pepinster | 4,117.23 mi (6,626.03 km) |
| Upper Arlington to Peruwelz | 4,031.21 mi (6,487.61 km) |
| Upper Arlington to Perwez | 4,076.31 mi (6,560.18 km) |
| Upper Arlington to Philippeville | 4,079.11 mi (6,564.69 km) |
