| Targu Neamt to Olympia Heights (Florida) | 5,651.87 mi (9,095.81 km) |
| Targu Neamt to Omaha (Nebraska) | 5,380.07 mi (8,658.39 km) |
| Targu Neamt to On Top of the World Designated Place (Florida) | 5,553.63 mi (8,937.70 km) |
| Targu Neamt to Onalaska (Wisconsin) | 5,086.31 mi (8,185.63 km) |
| Targu Neamt to Oneida (New York) | 4,598.86 mi (7,401.15 km) |
| Targu Neamt to Oneonta (New York) | 4,606.56 mi (7,413.55 km) |
| Targu Neamt to Ontario (California) | 6,394.78 mi (10,291.40 km) |
| Targu Neamt to Ontario (Oregon) | 5,749.79 mi (9,253.39 km) |
| Targu Neamt to Opa-locka (Florida) | 5,639.31 mi (9,075.59 km) |
| Targu Neamt to Opelika (Alabama) | 5,485.12 mi (8,827.45 km) |
| Targu Neamt to Opelousas (Louisiana) | 5,845.84 mi (9,407.97 km) |
| Targu Neamt to Orange (California) | 6,414.63 mi (10,323.34 km) |
| Targu Neamt to Orange (Texas) | 5,927.76 mi (9,539.80 km) |
| Targu Neamt to Orange City (Florida) | 5,523.03 mi (8,888.45 km) |
| Targu Neamt to Orangeburg (South Carolina) | 5,270.66 mi (8,482.31 km) |
