| Cities | Distance |
|---|
| Seini to Opwijk | 885.17 mi (1,424.55 km) |
| Seini to Ostend | 941.78 mi (1,515.65 km) |
| Seini to Oud-Heverlee | 863.13 mi (1,389.08 km) |
| Seini to Oud-Turnhout | 854.37 mi (1,374.97 km) |
| Seini to Oudenaarde | 909.50 mi (1,463.71 km) |
| Seini to Oudenburg | 937.97 mi (1,509.51 km) |
| Seini to Oupeye | 819.72 mi (1,319.21 km) |
| Seini to Overijse | 868.50 mi (1,397.72 km) |
| Seini to Overpelt | 834.74 mi (1,343.38 km) |
| Seini to Paal | 843.23 mi (1,357.05 km) |
| Seini to Peer | 832.20 mi (1,339.30 km) |
| Seini to Pepinster | 810.92 mi (1,305.05 km) |
| Seini to Peruwelz | 908.13 mi (1,461.49 km) |
| Seini to Perwez | 855.02 mi (1,376.01 km) |
| Seini to Philippeville | 863.99 mi (1,390.46 km) |
