| Welwyn Garden City to Santarem | 959.51 mi (1,544.18 km) |
| Welwyn Garden City to Santiago do Cacem | 1,038.04 mi (1,670.56 km) |
| Welwyn Garden City to Santo Andre | 1,036.85 mi (1,668.65 km) |
| Welwyn Garden City to Santo Tirso | 822.21 mi (1,323.22 km) |
| Welwyn Garden City to Sao Bras de Alportel | 1,079.82 mi (1,737.80 km) |
| Welwyn Garden City to Sao Felix da Marinha | 844.38 mi (1,358.89 km) |
| Welwyn Garden City to Sao Joao da Madeira | 849.98 mi (1,367.91 km) |
| Welwyn Garden City to Sao Joao de Ver | 847.78 mi (1,364.37 km) |
| Welwyn Garden City to Sao Mamede de Infesta | 833.51 mi (1,341.40 km) |
| Welwyn Garden City to Sao Pedro do Sul | 850.25 mi (1,368.35 km) |
| Welwyn Garden City to Satao | 844.50 mi (1,359.10 km) |
| Welwyn Garden City to Seia | 863.80 mi (1,390.15 km) |
| Welwyn Garden City to Senhora da Hora | 835.53 mi (1,344.66 km) |
| Welwyn Garden City to Serpa | 1,022.79 mi (1,646.01 km) |
| Welwyn Garden City to Serta | 911.51 mi (1,466.94 km) |
