| Heerenveen to Olivenza | 1,164.42 mi (1,873.95 km) |
| Heerenveen to Olot | 760.88 mi (1,224.52 km) |
| Heerenveen to Onate | 785.27 mi (1,263.77 km) |
| Heerenveen to Onda | 943.71 mi (1,518.75 km) |
| Heerenveen to Onteniente | 1,024.51 mi (1,648.80 km) |
| Heerenveen to Orihuela | 1,078.47 mi (1,735.63 km) |
| Heerenveen to Osuna | 1,208.75 mi (1,945.30 km) |
| Heerenveen to Ourense | 971.45 mi (1,563.40 km) |
| Heerenveen to Oviedo | 854.37 mi (1,374.97 km) |
| Heerenveen to Paiporta | 981.49 mi (1,579.56 km) |
| Heerenveen to Pajara | 1,982.92 mi (3,191.21 km) |
| Heerenveen to Palafolls | 793.35 mi (1,276.78 km) |
| Heerenveen to Palafrugell | 773.04 mi (1,244.09 km) |
| Heerenveen to Palamos | 778.20 mi (1,252.39 km) |
| Heerenveen to Palencia | 897.68 mi (1,444.67 km) |
