| Sint-Joost-ten-Node to Olivenza | 1,009.20 mi (1,624.15 km) |
| Sint-Joost-ten-Node to Olot | 605.57 mi (974.56 km) |
| Sint-Joost-ten-Node to Onate | 627.54 mi (1,009.94 km) |
| Sint-Joost-ten-Node to Onda | 784.90 mi (1,263.17 km) |
| Sint-Joost-ten-Node to Onteniente | 865.75 mi (1,393.29 km) |
| Sint-Joost-ten-Node to Orihuela | 919.64 mi (1,480.02 km) |
| Sint-Joost-ten-Node to Osuna | 1,050.12 mi (1,690.01 km) |
| Sint-Joost-ten-Node to Ourense | 825.06 mi (1,327.80 km) |
| Sint-Joost-ten-Node to Oviedo | 705.26 mi (1,135.01 km) |
| Sint-Joost-ten-Node to Paiporta | 822.71 mi (1,324.02 km) |
| Sint-Joost-ten-Node to Pajara | 1,828.45 mi (2,942.61 km) |
| Sint-Joost-ten-Node to Palafolls | 639.07 mi (1,028.48 km) |
| Sint-Joost-ten-Node to Palafrugell | 619.89 mi (997.62 km) |
| Sint-Joost-ten-Node to Palamos | 624.97 mi (1,005.80 km) |
| Sint-Joost-ten-Node to Palencia | 742.32 mi (1,194.65 km) |
