| Heerhugowaard to Olivenza | 1,121.43 mi (1,804.76 km) |
| Heerhugowaard to Olot | 732.55 mi (1,178.92 km) |
| Heerhugowaard to Onate | 744.78 mi (1,198.62 km) |
| Heerhugowaard to Onda | 910.27 mi (1,464.94 km) |
| Heerhugowaard to Onteniente | 991.16 mi (1,595.12 km) |
| Heerhugowaard to Orihuela | 1,044.94 mi (1,681.67 km) |
| Heerhugowaard to Osuna | 1,169.19 mi (1,881.63 km) |
| Heerhugowaard to Ourense | 924.95 mi (1,488.56 km) |
| Heerhugowaard to Oviedo | 808.81 mi (1,301.65 km) |
| Heerhugowaard to Paiporta | 948.11 mi (1,525.84 km) |
| Heerhugowaard to Pajara | 1,939.16 mi (3,120.78 km) |
| Heerhugowaard to Palafolls | 766.04 mi (1,232.82 km) |
| Heerhugowaard to Palafrugell | 746.76 mi (1,201.80 km) |
| Heerhugowaard to Palamos | 751.85 mi (1,209.99 km) |
| Heerhugowaard to Palencia | 855.01 mi (1,376.00 km) |
