| Welwyn Garden City to Montalegre | 776.74 mi (1,250.04 km) |
| Welwyn Garden City to Montemor-o-Novo | 987.87 mi (1,589.82 km) |
| Welwyn Garden City to Montemor-o-Velho | 900.18 mi (1,448.69 km) |
| Welwyn Garden City to Montijo | 999.08 mi (1,607.86 km) |
| Welwyn Garden City to Mortagua | 873.81 mi (1,406.26 km) |
| Welwyn Garden City to Moura | 1,007.88 mi (1,622.03 km) |
| Welwyn Garden City to Murtosa | 863.42 mi (1,389.55 km) |
| Welwyn Garden City to Nazare | 944.21 mi (1,519.55 km) |
| Welwyn Garden City to Nelas | 860.67 mi (1,385.12 km) |
| Welwyn Garden City to Obidos | 961.46 mi (1,547.33 km) |
| Welwyn Garden City to Odemira | 1,064.86 mi (1,713.72 km) |
| Welwyn Garden City to Odivelas | 997.99 mi (1,606.10 km) |
| Welwyn Garden City to Oeiras | 1,007.67 mi (1,621.68 km) |
| Welwyn Garden City to Olhao | 1,087.27 mi (1,749.79 km) |
| Welwyn Garden City to Oliveira de Azemeis | 853.26 mi (1,373.20 km) |
