| Oldsmar to Olivares | 4,374.47 mi (7,040.03 km) |
| Oldsmar to Olivenza | 4,301.07 mi (6,921.91 km) |
| Oldsmar to Olot | 4,713.90 mi (7,586.29 km) |
| Oldsmar to Onate | 4,458.22 mi (7,174.82 km) |
| Oldsmar to Onda | 4,626.25 mi (7,445.23 km) |
| Oldsmar to Onteniente | 4,633.46 mi (7,456.84 km) |
| Oldsmar to Orihuela | 4,632.10 mi (7,454.64 km) |
| Oldsmar to Osuna | 4,433.39 mi (7,134.85 km) |
| Oldsmar to Ourense | 4,201.69 mi (6,761.97 km) |
| Oldsmar to Oviedo | 4,285.38 mi (6,896.65 km) |
| Oldsmar to Paiporta | 4,629.95 mi (7,451.19 km) |
| Oldsmar to Pajara | 4,113.17 mi (6,619.51 km) |
| Oldsmar to Palafolls | 4,738.11 mi (7,625.26 km) |
| Oldsmar to Palafrugell | 4,752.56 mi (7,648.50 km) |
| Oldsmar to Palamos | 4,752.53 mi (7,648.45 km) |
