| Homosassa Springs to Octeville | 4,339.66 mi (6,984.00 km) |
| Homosassa Springs to Oignies | 4,523.64 mi (7,280.09 km) |
| Homosassa Springs to Oissel | 4,463.43 mi (7,183.19 km) |
| Homosassa Springs to Olivet | 4,527.16 mi (7,285.76 km) |
| Homosassa Springs to Ollioules | 4,813.24 mi (7,746.16 km) |
| Homosassa Springs to Olonne-sur-Mer | 4,386.05 mi (7,058.67 km) |
| Homosassa Springs to Oloron-Sainte-Marie | 4,504.59 mi (7,249.44 km) |
| Homosassa Springs to Onet Village | 4,631.82 mi (7,454.20 km) |
| Homosassa Springs to Onnaing | 4,550.75 mi (7,323.72 km) |
| Homosassa Springs to Orange | 4,740.54 mi (7,629.17 km) |
| Homosassa Springs to Orchies | 4,534.11 mi (7,296.94 km) |
| Homosassa Springs to Orleans | 4,526.77 mi (7,285.13 km) |
| Homosassa Springs to Orly | 4,531.47 mi (7,292.70 km) |
| Homosassa Springs to Ormesson-sur-Marne | 4,536.99 mi (7,301.59 km) |
| Homosassa Springs to Orsay | 4,523.40 mi (7,279.71 km) |
