| Ashtabula to Octeville | 3,674.24 mi (5,913.13 km) |
| Ashtabula to Oignies | 3,835.97 mi (6,173.39 km) |
| Ashtabula to Oissel | 3,793.88 mi (6,105.66 km) |
| Ashtabula to Olivet | 3,872.42 mi (6,232.06 km) |
| Ashtabula to Ollioules | 4,199.03 mi (6,757.69 km) |
| Ashtabula to Olonne-sur-Mer | 3,759.10 mi (6,049.69 km) |
| Ashtabula to Oloron-Sainte-Marie | 3,915.77 mi (6,301.82 km) |
| Ashtabula to Onet Village | 4,016.15 mi (6,463.38 km) |
| Ashtabula to Onnaing | 3,862.31 mi (6,215.79 km) |
| Ashtabula to Orange | 4,118.97 mi (6,628.83 km) |
| Ashtabula to Orchies | 3,845.69 mi (6,189.04 km) |
| Ashtabula to Orleans | 3,871.55 mi (6,230.66 km) |
| Ashtabula to Orly | 3,865.02 mi (6,220.15 km) |
| Ashtabula to Ormesson-sur-Marne | 3,869.62 mi (6,227.56 km) |
| Ashtabula to Orsay | 3,858.09 mi (6,209.00 km) |
