| Honefoss to Orbetello | 1,225.44 mi (1,972.16 km) |
| Honefoss to Oria | 1,394.78 mi (2,244.68 km) |
| Honefoss to Oristano | 1,401.83 mi (2,256.03 km) |
| Honefoss to Orta Nova | 1,321.70 mi (2,127.07 km) |
| Honefoss to Orte | 1,226.56 mi (1,973.95 km) |
| Honefoss to Ortona | 1,243.13 mi (2,000.63 km) |
| Honefoss to Orvieto | 1,207.97 mi (1,944.05 km) |
| Honefoss to Orzinuovi | 1,020.39 mi (1,642.16 km) |
| Honefoss to Osimo | 1,160.37 mi (1,867.43 km) |
| Honefoss to Ospitaletto | 1,009.59 mi (1,624.78 km) |
| Honefoss to Ostuni | 1,378.45 mi (2,218.40 km) |
| Honefoss to Ottaviano | 1,346.57 mi (2,167.09 km) |
| Honefoss to Ovada | 1,075.02 mi (1,730.08 km) |
| Honefoss to Ozieri | 1,354.11 mi (2,179.24 km) |
| Honefoss to Paceco | 1,535.89 mi (2,471.78 km) |
