| Islington to Montalegre | 763.18 mi (1,228.22 km) |
| Islington to Montemor-o-Novo | 973.40 mi (1,566.53 km) |
| Islington to Montemor-o-Velho | 886.53 mi (1,426.73 km) |
| Islington to Montijo | 985.03 mi (1,585.26 km) |
| Islington to Mortagua | 859.96 mi (1,383.97 km) |
| Islington to Moura | 992.83 mi (1,597.80 km) |
| Islington to Murtosa | 849.98 mi (1,367.91 km) |
| Islington to Nazare | 930.59 mi (1,497.64 km) |
| Islington to Nelas | 846.59 mi (1,362.45 km) |
| Islington to Obidos | 947.81 mi (1,525.36 km) |
| Islington to Odemira | 1,050.33 mi (1,690.35 km) |
| Islington to Odivelas | 984.15 mi (1,583.83 km) |
| Islington to Oeiras | 993.88 mi (1,599.49 km) |
| Islington to Olhao | 1,072.18 mi (1,725.50 km) |
| Islington to Oliveira de Azemeis | 839.75 mi (1,351.45 km) |
