| Haarlem to Olivenza | 1,100.59 mi (1,771.22 km) |
| Haarlem to Olot | 711.87 mi (1,145.65 km) |
| Haarlem to Onate | 723.60 mi (1,164.53 km) |
| Haarlem to Onda | 889.08 mi (1,430.84 km) |
| Haarlem to Onteniente | 969.97 mi (1,561.02 km) |
| Haarlem to Orihuela | 1,023.73 mi (1,647.54 km) |
| Haarlem to Osuna | 1,147.96 mi (1,847.46 km) |
| Haarlem to Ourense | 905.12 mi (1,456.65 km) |
| Haarlem to Oviedo | 788.60 mi (1,269.14 km) |
| Haarlem to Paiporta | 926.92 mi (1,491.73 km) |
| Haarlem to Pajara | 1,918.49 mi (3,087.52 km) |
| Haarlem to Palafolls | 745.50 mi (1,199.76 km) |
| Haarlem to Palafrugell | 726.37 mi (1,168.99 km) |
| Haarlem to Palamos | 731.46 mi (1,177.16 km) |
| Haarlem to Palencia | 834.10 mi (1,342.35 km) |
