| Porterville to Olivares | 5,789.88 mi (9,317.92 km) |
| Porterville to Olivenza | 5,693.22 mi (9,162.36 km) |
| Porterville to Olot | 5,892.94 mi (9,483.77 km) |
| Porterville to Onate | 5,674.29 mi (9,131.89 km) |
| Porterville to Onda | 5,901.71 mi (9,497.89 km) |
| Porterville to Onteniente | 5,944.01 mi (9,565.96 km) |
| Porterville to Orihuela | 5,966.55 mi (9,602.23 km) |
| Porterville to Osuna | 5,841.35 mi (9,400.74 km) |
| Porterville to Ourense | 5,499.20 mi (8,850.10 km) |
| Porterville to Oviedo | 5,531.02 mi (8,901.32 km) |
| Porterville to Paiporta | 5,921.84 mi (9,530.29 km) |
| Porterville to Pajara | 5,836.92 mi (9,393.62 km) |
| Porterville to Palafolls | 5,927.87 mi (9,539.98 km) |
| Porterville to Palafrugell | 5,930.02 mi (9,543.45 km) |
| Porterville to Palamos | 5,932.41 mi (9,547.30 km) |
