| Luton to Montalegre | 776.35 mi (1,249.41 km) |
| Luton to Montemor-o-Novo | 988.24 mi (1,590.41 km) |
| Luton to Montemor-o-Velho | 899.84 mi (1,448.15 km) |
| Luton to Montijo | 999.06 mi (1,607.84 km) |
| Luton to Mortagua | 873.64 mi (1,405.99 km) |
| Luton to Moura | 1,008.80 mi (1,623.51 km) |
| Luton to Murtosa | 862.92 mi (1,388.73 km) |
| Luton to Nazare | 943.83 mi (1,518.95 km) |
| Luton to Nelas | 860.71 mi (1,385.18 km) |
| Luton to Obidos | 961.11 mi (1,546.76 km) |
| Luton to Odemira | 1,065.27 mi (1,714.38 km) |
| Luton to Odivelas | 997.79 mi (1,605.79 km) |
| Luton to Oeiras | 1,007.43 mi (1,621.30 km) |
| Luton to Olhao | 1,088.21 mi (1,751.31 km) |
| Luton to Oliveira de Azemeis | 852.82 mi (1,372.47 km) |
