| Helena to Opwijk | 4,704.02 mi (7,570.39 km) |
| Helena to Ostend | 4,653.99 mi (7,489.88 km) |
| Helena to Oud-Heverlee | 4,724.88 mi (7,603.96 km) |
| Helena to Oud-Turnhout | 4,708.86 mi (7,578.17 km) |
| Helena to Oudenaarde | 4,693.09 mi (7,552.80 km) |
| Helena to Oudenburg | 4,658.52 mi (7,497.16 km) |
| Helena to Oupeye | 4,759.40 mi (7,659.51 km) |
| Helena to Overijse | 4,723.62 mi (7,601.94 km) |
| Helena to Overpelt | 4,726.39 mi (7,606.38 km) |
| Helena to Paal | 4,728.69 mi (7,610.10 km) |
| Helena to Peer | 4,731.81 mi (7,615.11 km) |
| Helena to Pepinster | 4,771.78 mi (7,679.44 km) |
| Helena to Peruwelz | 4,709.74 mi (7,579.59 km) |
| Helena to Perwez | 4,740.02 mi (7,628.33 km) |
| Helena to Philippeville | 4,754.38 mi (7,651.44 km) |
