| Ioannina to Opwijk | 1,120.19 mi (1,802.77 km) |
| Ioannina to Ostend | 1,174.83 mi (1,890.70 km) |
| Ioannina to Oud-Heverlee | 1,097.92 mi (1,766.93 km) |
| Ioannina to Oud-Turnhout | 1,108.50 mi (1,783.96 km) |
| Ioannina to Oudenaarde | 1,135.64 mi (1,827.64 km) |
| Ioannina to Oudenburg | 1,170.28 mi (1,883.39 km) |
| Ioannina to Oupeye | 1,059.43 mi (1,705.00 km) |
| Ioannina to Overijse | 1,100.36 mi (1,770.86 km) |
| Ioannina to Overpelt | 1,089.79 mi (1,753.85 km) |
| Ioannina to Paal | 1,089.85 mi (1,753.94 km) |
| Ioannina to Peer | 1,084.78 mi (1,745.79 km) |
| Ioannina to Pepinster | 1,047.31 mi (1,685.48 km) |
| Ioannina to Peruwelz | 1,122.79 mi (1,806.95 km) |
| Ioannina to Perwez | 1,083.88 mi (1,744.33 km) |
| Ioannina to Philippeville | 1,075.43 mi (1,730.73 km) |
