| Haldensleben to Oria | 865.58 mi (1,393.01 km) |
| Haldensleben to Oristano | 865.67 mi (1,393.17 km) |
| Haldensleben to Orta Nova | 783.17 mi (1,260.38 km) |
| Haldensleben to Orte | 680.20 mi (1,094.68 km) |
| Haldensleben to Ortona | 700.25 mi (1,126.94 km) |
| Haldensleben to Orvieto | 661.66 mi (1,064.84 km) |
| Haldensleben to Orzinuovi | 480.32 mi (773.00 km) |
| Haldensleben to Osimo | 615.45 mi (990.47 km) |
| Haldensleben to Ospitaletto | 468.82 mi (754.50 km) |
| Haldensleben to Ostuni | 849.43 mi (1,367.02 km) |
| Haldensleben to Ottaviano | 803.04 mi (1,292.37 km) |
| Haldensleben to Ovada | 543.09 mi (874.01 km) |
| Haldensleben to Ozieri | 816.29 mi (1,313.69 km) |
| Haldensleben to Paceco | 989.54 mi (1,592.52 km) |
| Haldensleben to Pachino | 1,090.39 mi (1,754.81 km) |
