| Pecos to Olivares | 5,301.38 mi (8,531.74 km) |
| Pecos to Olivenza | 5,213.45 mi (8,390.24 km) |
| Pecos to Olot | 5,520.49 mi (8,884.37 km) |
| Pecos to Onate | 5,277.83 mi (8,493.84 km) |
| Pecos to Onda | 5,483.44 mi (8,824.74 km) |
| Pecos to Onteniente | 5,510.02 mi (8,867.52 km) |
| Pecos to Orihuela | 5,521.62 mi (8,886.20 km) |
| Pecos to Osuna | 5,357.72 mi (8,622.41 km) |
| Pecos to Ourense | 5,059.14 mi (8,141.89 km) |
| Pecos to Oviedo | 5,116.35 mi (8,233.97 km) |
| Pecos to Paiporta | 5,496.23 mi (8,845.34 km) |
| Pecos to Pajara | 5,197.69 mi (8,364.88 km) |
| Pecos to Palafolls | 5,551.33 mi (8,934.00 km) |
| Pecos to Palafrugell | 5,559.41 mi (8,947.00 km) |
| Pecos to Palamos | 5,560.71 mi (8,949.10 km) |
