| Portales to Olivares | 5,181.74 mi (8,339.21 km) |
| Portales to Olivenza | 5,091.88 mi (8,194.59 km) |
| Portales to Olot | 5,381.62 mi (8,660.88 km) |
| Portales to Onate | 5,141.98 mi (8,275.21 km) |
| Portales to Onda | 5,351.86 mi (8,612.99 km) |
| Portales to Onteniente | 5,381.21 mi (8,660.22 km) |
| Portales to Orihuela | 5,394.75 mi (8,682.02 km) |
| Portales to Osuna | 5,237.35 mi (8,428.70 km) |
| Portales to Ourense | 4,929.87 mi (7,933.86 km) |
| Portales to Oviedo | 4,982.95 mi (8,019.28 km) |
| Portales to Paiporta | 5,365.94 mi (8,635.64 km) |
| Portales to Pajara | 5,110.64 mi (8,224.77 km) |
| Portales to Palafolls | 5,413.20 mi (8,711.70 km) |
| Portales to Palafrugell | 5,420.38 mi (8,723.26 km) |
| Portales to Palamos | 5,421.86 mi (8,725.64 km) |
