| Laeken to Olivenza | 1,009.97 mi (1,625.40 km) |
| Laeken to Olot | 607.27 mi (977.31 km) |
| Laeken to Onate | 628.50 mi (1,011.47 km) |
| Laeken to Onda | 786.34 mi (1,265.50 km) |
| Laeken to Onteniente | 867.20 mi (1,395.63 km) |
| Laeken to Orihuela | 921.09 mi (1,482.34 km) |
| Laeken to Osuna | 1,051.19 mi (1,691.72 km) |
| Laeken to Ourense | 825.41 mi (1,328.36 km) |
| Laeken to Oviedo | 705.71 mi (1,135.73 km) |
| Laeken to Paiporta | 824.16 mi (1,326.36 km) |
| Laeken to Pajara | 1,829.20 mi (2,943.82 km) |
| Laeken to Palafolls | 640.81 mi (1,031.29 km) |
| Laeken to Palafrugell | 621.68 mi (1,000.50 km) |
| Laeken to Palamos | 626.76 mi (1,008.68 km) |
| Laeken to Palencia | 743.10 mi (1,195.90 km) |
