| Lamont to Orbetello | 6,213.38 mi (9,999.47 km) |
| Lamont to Oria | 6,518.55 mi (10,490.60 km) |
| Lamont to Oristano | 6,261.73 mi (10,077.29 km) |
| Lamont to Orta Nova | 6,414.04 mi (10,322.40 km) |
| Lamont to Orte | 6,249.27 mi (10,057.24 km) |
| Lamont to Ortona | 6,317.39 mi (10,166.86 km) |
| Lamont to Orvieto | 6,226.59 mi (10,020.73 km) |
| Lamont to Orzinuovi | 6,014.46 mi (9,679.35 km) |
| Lamont to Osimo | 6,226.90 mi (10,021.23 km) |
| Lamont to Ospitaletto | 6,010.50 mi (9,672.97 km) |
| Lamont to Ostuni | 6,503.76 mi (10,466.78 km) |
| Lamont to Ottaviano | 6,403.14 mi (10,304.86 km) |
| Lamont to Ovada | 6,014.37 mi (9,679.19 km) |
| Lamont to Ozieri | 6,239.94 mi (10,042.21 km) |
| Lamont to Paceco | 6,498.93 mi (10,459.02 km) |
