| Alcantarilla to Opwijk | 935.73 mi (1,505.92 km) |
| Alcantarilla to Ostend | 937.60 mi (1,508.93 km) |
| Alcantarilla to Oud-Heverlee | 934.00 mi (1,503.13 km) |
| Alcantarilla to Oud-Turnhout | 970.10 mi (1,561.22 km) |
| Alcantarilla to Oudenaarde | 920.38 mi (1,481.21 km) |
| Alcantarilla to Oudenburg | 935.61 mi (1,505.72 km) |
| Alcantarilla to Oupeye | 941.88 mi (1,515.80 km) |
| Alcantarilla to Overijse | 928.76 mi (1,494.70 km) |
| Alcantarilla to Overpelt | 970.46 mi (1,561.80 km) |
| Alcantarilla to Paal | 955.14 mi (1,537.16 km) |
| Alcantarilla to Peer | 965.69 mi (1,554.12 km) |
| Alcantarilla to Pepinster | 936.02 mi (1,506.37 km) |
| Alcantarilla to Peruwelz | 898.13 mi (1,445.39 km) |
| Alcantarilla to Perwez | 922.75 mi (1,485.03 km) |
| Alcantarilla to Philippeville | 891.22 mi (1,434.28 km) |
