| Sandusky to Octeville | 3,770.26 mi (6,067.64 km) |
| Sandusky to Oignies | 3,930.30 mi (6,325.21 km) |
| Sandusky to Oissel | 3,889.50 mi (6,259.54 km) |
| Sandusky to Olivet | 3,968.87 mi (6,387.27 km) |
| Sandusky to Ollioules | 4,297.30 mi (6,915.83 km) |
| Sandusky to Olonne-sur-Mer | 3,857.16 mi (6,207.49 km) |
| Sandusky to Oloron-Sainte-Marie | 4,015.34 mi (6,462.07 km) |
| Sandusky to Onet Village | 4,114.51 mi (6,621.67 km) |
| Sandusky to Onnaing | 3,956.56 mi (6,367.47 km) |
| Sandusky to Orange | 4,216.95 mi (6,786.53 km) |
| Sandusky to Orchies | 3,939.96 mi (6,340.75 km) |
| Sandusky to Orleans | 3,967.97 mi (6,385.83 km) |
| Sandusky to Orly | 3,960.76 mi (6,374.23 km) |
| Sandusky to Ormesson-sur-Marne | 3,965.30 mi (6,381.53 km) |
| Sandusky to Orsay | 3,953.91 mi (6,363.20 km) |
