| Parma Heights to Olivares | 3,914.08 mi (6,299.10 km) |
| Parma Heights to Olivenza | 3,826.32 mi (6,157.87 km) |
| Parma Heights to Olot | 4,147.33 mi (6,674.49 km) |
| Parma Heights to Onate | 3,900.84 mi (6,277.80 km) |
| Parma Heights to Onda | 4,101.40 mi (6,600.56 km) |
| Parma Heights to Onteniente | 4,125.76 mi (6,639.78 km) |
| Parma Heights to Orihuela | 4,136.19 mi (6,656.56 km) |
| Parma Heights to Osuna | 3,970.44 mi (6,389.81 km) |
| Parma Heights to Ourense | 3,675.60 mi (5,915.30 km) |
| Parma Heights to Oviedo | 3,736.65 mi (6,013.56 km) |
| Parma Heights to Paiporta | 4,113.08 mi (6,619.37 km) |
| Parma Heights to Pajara | 3,842.01 mi (6,183.11 km) |
| Parma Heights to Palafolls | 4,176.98 mi (6,722.20 km) |
| Parma Heights to Palafrugell | 4,186.41 mi (6,737.38 km) |
| Parma Heights to Palamos | 4,187.45 mi (6,739.04 km) |
