| Rancho San Diego to Olivares | 5,853.80 mi (9,420.79 km) |
| Rancho San Diego to Olivenza | 5,759.36 mi (9,268.80 km) |
| Rancho San Diego to Olot | 5,991.04 mi (9,641.65 km) |
| Rancho San Diego to Onate | 5,764.66 mi (9,277.32 km) |
| Rancho San Diego to Onda | 5,987.00 mi (9,635.15 km) |
| Rancho San Diego to Onteniente | 6,024.96 mi (9,696.23 km) |
| Rancho San Diego to Orihuela | 6,044.40 mi (9,727.52 km) |
| Rancho San Diego to Osuna | 5,907.00 mi (9,506.39 km) |
| Rancho San Diego to Ourense | 5,576.23 mi (8,974.08 km) |
| Rancho San Diego to Oviedo | 5,615.53 mi (9,037.33 km) |
| Rancho San Diego to Paiporta | 6,005.12 mi (9,664.30 km) |
| Rancho San Diego to Pajara | 5,850.64 mi (9,415.70 km) |
| Rancho San Diego to Palafolls | 6,025.02 mi (9,696.33 km) |
| Rancho San Diego to Palafrugell | 6,028.81 mi (9,702.43 km) |
| Rancho San Diego to Palamos | 6,030.91 mi (9,705.82 km) |
