| Lacey to Orbetello | 5,644.21 mi (9,083.48 km) |
| Lacey to Oria | 5,917.48 mi (9,523.26 km) |
| Lacey to Oristano | 5,726.38 mi (9,215.72 km) |
| Lacey to Orta Nova | 5,821.45 mi (9,368.72 km) |
| Lacey to Orte | 5,672.28 mi (9,128.65 km) |
| Lacey to Ortona | 5,727.87 mi (9,218.11 km) |
| Lacey to Orvieto | 5,649.88 mi (9,092.60 km) |
| Lacey to Orzinuovi | 5,435.39 mi (8,747.42 km) |
| Lacey to Osimo | 5,636.95 mi (9,071.79 km) |
| Lacey to Ospitaletto | 5,429.62 mi (8,738.13 km) |
| Lacey to Ostuni | 5,901.82 mi (9,498.07 km) |
| Lacey to Ottaviano | 5,821.45 mi (9,368.72 km) |
| Lacey to Ovada | 5,448.03 mi (8,767.75 km) |
| Lacey to Ozieri | 5,697.28 mi (9,168.89 km) |
| Lacey to Paceco | 5,947.42 mi (9,571.46 km) |
