| Iona to Opwijk | 4,655.18 mi (7,491.79 km) |
| Iona to Ostend | 4,597.62 mi (7,399.15 km) |
| Iona to Oud-Heverlee | 4,677.90 mi (7,528.36 km) |
| Iona to Oud-Turnhout | 4,682.46 mi (7,535.69 km) |
| Iona to Oudenaarde | 4,632.60 mi (7,455.45 km) |
| Iona to Oudenburg | 4,601.71 mi (7,405.73 km) |
| Iona to Oupeye | 4,721.33 mi (7,598.24 km) |
| Iona to Overijse | 4,673.18 mi (7,520.75 km) |
| Iona to Overpelt | 4,702.35 mi (7,567.71 km) |
| Iona to Paal | 4,695.42 mi (7,556.56 km) |
| Iona to Peer | 4,705.45 mi (7,572.68 km) |
| Iona to Pepinster | 4,731.33 mi (7,614.34 km) |
| Iona to Peruwelz | 4,637.62 mi (7,463.53 km) |
| Iona to Perwez | 4,687.95 mi (7,544.53 km) |
| Iona to Philippeville | 4,684.42 mi (7,538.85 km) |
