| Lockhart to Orbetello | 5,706.54 mi (9,183.80 km) |
| Lockhart to Oria | 6,053.71 mi (9,742.51 km) |
| Lockhart to Oristano | 5,689.58 mi (9,156.50 km) |
| Lockhart to Orta Nova | 5,939.22 mi (9,558.25 km) |
| Lockhart to Orte | 5,755.01 mi (9,261.79 km) |
| Lockhart to Ortona | 5,843.03 mi (9,403.45 km) |
| Lockhart to Orvieto | 5,733.31 mi (9,226.87 km) |
| Lockhart to Orzinuovi | 5,540.32 mi (8,916.29 km) |
| Lockhart to Osimo | 5,759.58 mi (9,269.14 km) |
| Lockhart to Ospitaletto | 5,540.16 mi (8,916.03 km) |
| Lockhart to Ostuni | 6,041.66 mi (9,723.12 km) |
| Lockhart to Ottaviano | 5,907.57 mi (9,507.31 km) |
| Lockhart to Ovada | 5,515.75 mi (8,876.74 km) |
| Lockhart to Ozieri | 5,682.27 mi (9,144.73 km) |
| Lockhart to Paceco | 5,940.15 mi (9,559.75 km) |
