| Guardamar del Segura to Opwijk | 920.56 mi (1,481.50 km) |
| Guardamar del Segura to Ostend | 924.17 mi (1,487.31 km) |
| Guardamar del Segura to Oud-Heverlee | 918.16 mi (1,477.63 km) |
| Guardamar del Segura to Oud-Turnhout | 954.20 mi (1,535.64 km) |
| Guardamar del Segura to Oudenaarde | 905.87 mi (1,457.86 km) |
| Guardamar del Segura to Oudenburg | 922.05 mi (1,483.90 km) |
| Guardamar del Segura to Oupeye | 924.79 mi (1,488.31 km) |
| Guardamar del Segura to Overijse | 913.05 mi (1,469.41 km) |
| Guardamar del Segura to Overpelt | 954.00 mi (1,535.31 km) |
| Guardamar del Segura to Paal | 938.84 mi (1,510.92 km) |
| Guardamar del Segura to Peer | 949.13 mi (1,527.48 km) |
| Guardamar del Segura to Pepinster | 918.63 mi (1,478.39 km) |
| Guardamar del Segura to Peruwelz | 883.45 mi (1,421.77 km) |
| Guardamar del Segura to Perwez | 906.58 mi (1,459.01 km) |
| Guardamar del Segura to Philippeville | 875.08 mi (1,408.30 km) |
