| Halluin to Oestrich-Winkel | 221.39 mi (356.29 km) |
| Halluin to Offenburg | 268.11 mi (431.48 km) |
| Halluin to Oftersheim | 260.93 mi (419.92 km) |
| Halluin to Ohrdruf | 332.02 mi (534.34 km) |
| Halluin to Ohringen | 303.43 mi (488.33 km) |
| Halluin to Olbernhau | 446.19 mi (718.08 km) |
| Halluin to Olching | 408.36 mi (657.19 km) |
| Halluin to Oldenburg | 271.04 mi (436.19 km) |
| Halluin to Oldenburg in Holstein | 406.19 mi (653.70 km) |
| Halluin to Olfen | 195.06 mi (313.92 km) |
| Halluin to Olpe | 205.74 mi (331.10 km) |
| Halluin to Olsberg | 235.84 mi (379.55 km) |
| Halluin to Oranienburg | 452.82 mi (728.74 km) |
| Halluin to Ortenberg | 261.82 mi (421.36 km) |
| Halluin to Oschatz | 434.75 mi (699.67 km) |
