| Portland to Mouscron | 5,042.02 mi (8,114.34 km) |
| Portland to Namur | 5,099.35 mi (8,206.62 km) |
| Portland to Neder-Over-Heembeek | 5,062.69 mi (8,147.61 km) |
| Portland to Neerpelt | 5,070.35 mi (8,159.94 km) |
| Portland to Nevele | 5,033.93 mi (8,101.33 km) |
| Portland to Niel | 5,049.27 mi (8,126.02 km) |
| Portland to Nieuwpoort | 5,008.63 mi (8,060.61 km) |
| Portland to Nijlen | 5,054.48 mi (8,134.39 km) |
| Portland to Ninove | 5,057.07 mi (8,138.57 km) |
| Portland to Nivelles | 5,078.76 mi (8,173.47 km) |
| Portland to Olen | 5,060.45 mi (8,144.01 km) |
| Portland to Oostakker | 5,035.77 mi (8,104.29 km) |
| Portland to Oosterzele | 5,044.99 mi (8,119.13 km) |
| Portland to Oostkamp | 5,019.09 mi (8,077.45 km) |
| Portland to Opglabbeek | 5,084.45 mi (8,182.64 km) |
