| Parma Heights to Octeville | 3,734.56 mi (6,010.19 km) |
| Parma Heights to Oignies | 3,896.08 mi (6,270.13 km) |
| Parma Heights to Oissel | 3,854.15 mi (6,202.66 km) |
| Parma Heights to Olivet | 3,932.77 mi (6,329.19 km) |
| Parma Heights to Ollioules | 4,259.44 mi (6,854.91 km) |
| Parma Heights to Olonne-sur-Mer | 3,819.51 mi (6,146.91 km) |
| Parma Heights to Oloron-Sainte-Marie | 3,976.08 mi (6,398.89 km) |
| Parma Heights to Onet Village | 4,076.56 mi (6,560.59 km) |
| Parma Heights to Onnaing | 3,922.41 mi (6,312.50 km) |
| Parma Heights to Orange | 4,179.38 mi (6,726.06 km) |
| Parma Heights to Orchies | 3,905.79 mi (6,285.76 km) |
| Parma Heights to Orleans | 3,931.90 mi (6,327.79 km) |
| Parma Heights to Orly | 3,925.31 mi (6,317.17 km) |
| Parma Heights to Ormesson-sur-Marne | 3,929.91 mi (6,324.57 km) |
| Parma Heights to Orsay | 3,918.39 mi (6,306.04 km) |
