| Grootegast to Olivenza | 1,187.88 mi (1,911.70 km) |
| Grootegast to Olot | 782.27 mi (1,258.94 km) |
| Grootegast to Onate | 808.63 mi (1,301.36 km) |
| Grootegast to Onda | 966.10 mi (1,554.79 km) |
| Grootegast to Onteniente | 1,046.88 mi (1,684.78 km) |
| Grootegast to Orihuela | 1,100.86 mi (1,771.66 km) |
| Grootegast to Osuna | 1,232.01 mi (1,982.73 km) |
| Grootegast to Ourense | 994.67 mi (1,600.77 km) |
| Grootegast to Oviedo | 877.72 mi (1,412.55 km) |
| Grootegast to Paiporta | 1,003.87 mi (1,615.56 km) |
| Grootegast to Pajara | 2,006.39 mi (3,228.97 km) |
| Grootegast to Palafolls | 814.49 mi (1,310.80 km) |
| Grootegast to Palafrugell | 793.94 mi (1,277.72 km) |
| Grootegast to Palamos | 799.11 mi (1,286.04 km) |
| Grootegast to Palencia | 921.14 mi (1,482.43 km) |
