| Boortmeerbeek to Olivenza | 1,021.38 mi (1,643.75 km) |
| Boortmeerbeek to Olot | 615.98 mi (991.33 km) |
| Boortmeerbeek to Onate | 639.63 mi (1,029.39 km) |
| Boortmeerbeek to Onda | 796.18 mi (1,281.32 km) |
| Boortmeerbeek to Onteniente | 877.01 mi (1,411.42 km) |
| Boortmeerbeek to Orihuela | 930.93 mi (1,498.19 km) |
| Boortmeerbeek to Osuna | 1,062.10 mi (1,709.29 km) |
| Boortmeerbeek to Ourense | 837.12 mi (1,347.22 km) |
| Boortmeerbeek to Oviedo | 717.39 mi (1,154.53 km) |
| Boortmeerbeek to Paiporta | 833.98 mi (1,342.16 km) |
| Boortmeerbeek to Pajara | 1,840.64 mi (2,962.22 km) |
| Boortmeerbeek to Palafolls | 649.29 mi (1,044.94 km) |
| Boortmeerbeek to Palafrugell | 629.91 mi (1,013.75 km) |
| Boortmeerbeek to Palamos | 635.01 mi (1,021.95 km) |
| Boortmeerbeek to Palencia | 754.50 mi (1,214.25 km) |
