| Cities | Distance |
|---|---|
| Northolt to Opwijk | 200.89 mi (323.30 km) |
| Northolt to Ostend | 143.54 mi (231.01 km) |
| Northolt to Oud-Heverlee | 223.56 mi (359.78 km) |
| Northolt to Oud-Turnhout | 231.09 mi (371.91 km) |
| Northolt to Oudenaarde | 178.47 mi (287.22 km) |
| Northolt to Oudenburg | 147.52 mi (237.40 km) |
| Northolt to Oupeye | 267.02 mi (429.72 km) |
| Northolt to Overijse | 218.85 mi (352.20 km) |
| Northolt to Overpelt | 250.51 mi (403.16 km) |
| Northolt to Paal | 241.98 mi (389.43 km) |
| Northolt to Peer | 252.91 mi (407.03 km) |
| Northolt to Pepinster | 276.99 mi (445.77 km) |
| Northolt to Peruwelz | 185.91 mi (299.19 km) |
| Northolt to Perwez | 233.83 mi (376.32 km) |
| Northolt to Philippeville | 233.76 mi (376.21 km) |