| Irthlingborough to Mouscron | 197.93 mi (318.54 km) |
| Irthlingborough to Namur | 268.77 mi (432.55 km) |
| Irthlingborough to Neder-Over-Heembeek | 235.84 mi (379.55 km) |
| Irthlingborough to Neerpelt | 269.18 mi (433.20 km) |
| Irthlingborough to Nevele | 199.40 mi (320.91 km) |
| Irthlingborough to Niel | 227.54 mi (366.19 km) |
| Irthlingborough to Nieuwpoort | 166.38 mi (267.77 km) |
| Irthlingborough to Nijlen | 238.90 mi (384.47 km) |
| Irthlingborough to Ninove | 223.87 mi (360.28 km) |
| Irthlingborough to Nivelles | 243.92 mi (392.55 km) |
| Irthlingborough to Olen | 247.39 mi (398.13 km) |
| Irthlingborough to Oostakker | 205.68 mi (331.02 km) |
| Irthlingborough to Oosterzele | 211.71 mi (340.71 km) |
| Irthlingborough to Oostkamp | 183.42 mi (295.19 km) |
| Irthlingborough to Opglabbeek | 279.57 mi (449.92 km) |
