| Isparta to Opwijk | 1,576.45 mi (2,537.05 km) |
| Isparta to Ostend | 1,633.78 mi (2,629.31 km) |
| Isparta to Oud-Heverlee | 1,553.47 mi (2,500.06 km) |
| Isparta to Oud-Turnhout | 1,555.91 mi (2,504.00 km) |
| Isparta to Oudenaarde | 1,596.21 mi (2,568.85 km) |
| Isparta to Oudenburg | 1,629.40 mi (2,622.26 km) |
| Isparta to Oupeye | 1,511.35 mi (2,432.28 km) |
| Isparta to Overijse | 1,557.25 mi (2,506.16 km) |
| Isparta to Overpelt | 1,536.09 mi (2,472.10 km) |
| Isparta to Paal | 1,539.93 mi (2,478.28 km) |
| Isparta to Peer | 1,532.01 mi (2,465.52 km) |
| Isparta to Pepinster | 1,500.16 mi (2,414.28 km) |
| Isparta to Peruwelz | 1,587.64 mi (2,555.06 km) |
| Isparta to Perwez | 1,541.41 mi (2,480.66 km) |
| Isparta to Philippeville | 1,539.83 mi (2,478.12 km) |
