| Johnston to Opwijk | 4,361.92 mi (7,019.83 km) |
| Johnston to Ostend | 4,306.32 mi (6,930.35 km) |
| Johnston to Oud-Heverlee | 4,384.52 mi (7,056.21 km) |
| Johnston to Oud-Turnhout | 4,377.04 mi (7,044.16 km) |
| Johnston to Oudenaarde | 4,345.30 mi (6,993.08 km) |
| Johnston to Oudenburg | 4,310.85 mi (6,937.64 km) |
| Johnston to Oupeye | 4,424.53 mi (7,120.59 km) |
| Johnston to Overijse | 4,381.66 mi (7,051.60 km) |
| Johnston to Overpelt | 4,396.39 mi (7,075.31 km) |
| Johnston to Paal | 4,394.65 mi (7,072.51 km) |
| Johnston to Peer | 4,401.01 mi (7,082.73 km) |
| Johnston to Pepinster | 4,436.38 mi (7,139.66 km) |
| Johnston to Peruwelz | 4,357.49 mi (7,012.70 km) |
| Johnston to Perwez | 4,398.04 mi (7,077.97 km) |
| Johnston to Philippeville | 4,405.03 mi (7,089.21 km) |
