| Wassenaar to Olivenza | 1,081.73 mi (1,740.88 km) |
| Wassenaar to Olot | 694.47 mi (1,117.64 km) |
| Wassenaar to Onate | 704.72 mi (1,134.13 km) |
| Wassenaar to Onda | 870.79 mi (1,401.41 km) |
| Wassenaar to Onteniente | 951.69 mi (1,531.59 km) |
| Wassenaar to Orihuela | 1,005.42 mi (1,618.06 km) |
| Wassenaar to Osuna | 1,129.10 mi (1,817.11 km) |
| Wassenaar to Ourense | 886.74 mi (1,427.07 km) |
| Wassenaar to Oviedo | 770.02 mi (1,239.23 km) |
| Wassenaar to Paiporta | 908.64 mi (1,462.31 km) |
| Wassenaar to Pajara | 1,899.69 mi (3,057.26 km) |
| Wassenaar to Palafolls | 728.27 mi (1,172.04 km) |
| Wassenaar to Palafrugell | 709.37 mi (1,141.62 km) |
| Wassenaar to Palamos | 714.44 mi (1,149.77 km) |
| Wassenaar to Palencia | 815.23 mi (1,311.98 km) |
