| Giannitsa to Opwijk | 1,118.55 mi (1,800.13 km) |
| Giannitsa to Ostend | 1,174.76 mi (1,890.59 km) |
| Giannitsa to Oud-Heverlee | 1,095.81 mi (1,763.54 km) |
| Giannitsa to Oud-Turnhout | 1,102.77 mi (1,774.73 km) |
| Giannitsa to Oudenaarde | 1,136.12 mi (1,828.41 km) |
| Giannitsa to Oudenburg | 1,170.26 mi (1,883.36 km) |
| Giannitsa to Oupeye | 1,055.39 mi (1,698.49 km) |
| Giannitsa to Overijse | 1,098.89 mi (1,768.50 km) |
| Giannitsa to Overpelt | 1,083.44 mi (1,743.62 km) |
| Giannitsa to Paal | 1,085.18 mi (1,746.44 km) |
| Giannitsa to Peer | 1,078.80 mi (1,736.16 km) |
| Giannitsa to Pepinster | 1,043.61 mi (1,679.54 km) |
| Giannitsa to Peruwelz | 1,125.26 mi (1,810.92 km) |
| Giannitsa to Perwez | 1,082.61 mi (1,742.29 km) |
| Giannitsa to Philippeville | 1,077.41 mi (1,733.92 km) |
