| Olympia Heights to Orbetello | 5,115.97 mi (8,233.36 km) |
| Olympia Heights to Oria | 5,474.23 mi (8,809.93 km) |
| Olympia Heights to Oristano | 5,048.05 mi (8,124.06 km) |
| Olympia Heights to Orta Nova | 5,359.20 mi (8,624.79 km) |
| Olympia Heights to Orte | 5,171.37 mi (8,322.51 km) |
| Olympia Heights to Ortona | 5,269.58 mi (8,480.57 km) |
| Olympia Heights to Orvieto | 5,151.86 mi (8,291.12 km) |
| Olympia Heights to Orzinuovi | 4,987.10 mi (8,025.96 km) |
| Olympia Heights to Osimo | 5,197.21 mi (8,364.09 km) |
| Olympia Heights to Ospitaletto | 4,990.04 mi (8,030.70 km) |
| Olympia Heights to Ostuni | 5,465.11 mi (8,795.25 km) |
| Olympia Heights to Ottaviano | 5,313.16 mi (8,550.71 km) |
| Olympia Heights to Ovada | 4,944.26 mi (7,957.02 km) |
| Olympia Heights to Ozieri | 5,052.68 mi (8,131.50 km) |
| Olympia Heights to Paceco | 5,294.23 mi (8,520.24 km) |
