| Ioannina to Octeville | 1,294.92 mi (2,083.98 km) |
| Ioannina to Oignies | 1,142.26 mi (1,838.29 km) |
| Ioannina to Oissel | 1,175.58 mi (1,891.91 km) |
| Ioannina to Olivet | 1,098.02 mi (1,767.10 km) |
| Ioannina to Ollioules | 812.60 mi (1,307.75 km) |
| Ioannina to Olonne-sur-Mer | 1,230.73 mi (1,980.67 km) |
| Ioannina to Oloron-Sainte-Marie | 1,134.75 mi (1,826.20 km) |
| Ioannina to Onet Village | 989.46 mi (1,592.38 km) |
| Ioannina to Onnaing | 1,117.14 mi (1,797.86 km) |
| Ioannina to Orange | 879.23 mi (1,414.99 km) |
| Ioannina to Orchies | 1,133.36 mi (1,823.97 km) |
| Ioannina to Orleans | 1,098.76 mi (1,768.28 km) |
| Ioannina to Orly | 1,104.23 mi (1,777.08 km) |
| Ioannina to Ormesson-sur-Marne | 1,099.73 mi (1,769.84 km) |
| Ioannina to Orsay | 1,111.07 mi (1,788.10 km) |
