| Hilo to Octeville | 7,378.53 mi (11,874.59 km) |
| Hilo to Oignies | 7,408.47 mi (11,922.78 km) |
| Hilo to Oissel | 7,447.91 mi (11,986.25 km) |
| Hilo to Olivet | 7,556.33 mi (12,160.73 km) |
| Hilo to Ollioules | 7,929.84 mi (12,761.84 km) |
| Hilo to Olonne-sur-Mer | 7,567.21 mi (12,178.25 km) |
| Hilo to Oloron-Sainte-Marie | 7,799.43 mi (12,551.97 km) |
| Hilo to Onet Village | 7,791.92 mi (12,539.88 km) |
| Hilo to Onnaing | 7,423.38 mi (11,946.77 km) |
| Hilo to Orange | 7,847.14 mi (12,628.75 km) |
| Hilo to Orchies | 7,412.15 mi (11,928.70 km) |
| Hilo to Orleans | 7,554.02 mi (12,157.03 km) |
| Hilo to Orly | 7,508.94 mi (12,084.47 km) |
| Hilo to Ormesson-sur-Marne | 7,508.78 mi (12,084.21 km) |
| Hilo to Orsay | 7,508.29 mi (12,083.42 km) |
