| Rotterdam to Olivenza | 1,071.10 mi (1,723.76 km) |
| Rotterdam to Olot | 679.15 mi (1,092.98 km) |
| Rotterdam to Onate | 692.85 mi (1,115.04 km) |
| Rotterdam to Onda | 856.61 mi (1,378.58 km) |
| Rotterdam to Onteniente | 937.50 mi (1,508.76 km) |
| Rotterdam to Orihuela | 991.29 mi (1,595.32 km) |
| Rotterdam to Osuna | 1,116.89 mi (1,797.46 km) |
| Rotterdam to Ourense | 878.47 mi (1,413.76 km) |
| Rotterdam to Oviedo | 761.02 mi (1,224.74 km) |
| Rotterdam to Paiporta | 894.45 mi (1,439.47 km) |
| Rotterdam to Pajara | 1,889.48 mi (3,040.82 km) |
| Rotterdam to Palafolls | 712.80 mi (1,147.14 km) |
| Rotterdam to Palafrugell | 693.73 mi (1,116.45 km) |
| Rotterdam to Palamos | 698.80 mi (1,124.62 km) |
| Rotterdam to Palencia | 804.42 mi (1,294.59 km) |
