| Oceanside to Olivares | 5,849.27 mi (9,413.48 km) |
| Oceanside to Olivenza | 5,754.46 mi (9,260.90 km) |
| Oceanside to Olot | 5,981.18 mi (9,625.77 km) |
| Oceanside to Onate | 5,755.96 mi (9,263.32 km) |
| Oceanside to Onda | 5,979.16 mi (9,622.52 km) |
| Oceanside to Onteniente | 6,017.81 mi (9,684.72 km) |
| Oceanside to Orihuela | 6,037.74 mi (9,716.80 km) |
| Oceanside to Osuna | 5,902.20 mi (9,498.68 km) |
| Oceanside to Ourense | 5,569.58 mi (8,963.37 km) |
| Oceanside to Oviedo | 5,607.72 mi (9,024.75 km) |
| Oceanside to Paiporta | 5,997.60 mi (9,652.20 km) |
| Oceanside to Pajara | 5,853.80 mi (9,420.77 km) |
| Oceanside to Palafolls | 6,015.31 mi (9,680.71 km) |
| Oceanside to Palafrugell | 6,018.84 mi (9,686.39 km) |
| Oceanside to Palamos | 6,021.00 mi (9,689.86 km) |
