| Welwyn Garden City to Saarijarvi | 1,199.52 mi (1,930.44 km) |
| Welwyn Garden City to Salo | 1,067.66 mi (1,718.23 km) |
| Welwyn Garden City to Sastamala | 1,088.97 mi (1,752.52 km) |
| Welwyn Garden City to Savonlinna | 1,283.87 mi (2,066.19 km) |
| Welwyn Garden City to Seinajoki | 1,135.65 mi (1,827.66 km) |
| Welwyn Garden City to Siilinjarvi | 1,278.73 mi (2,057.91 km) |
| Welwyn Garden City to Sipoo | 1,135.57 mi (1,827.52 km) |
| Welwyn Garden City to Sippola | 1,199.25 mi (1,930.00 km) |
| Welwyn Garden City to Sodankyla | 1,405.30 mi (2,261.61 km) |
| Welwyn Garden City to Somero | 1,086.67 mi (1,748.82 km) |
| Welwyn Garden City to Sotkamo | 1,330.13 mi (2,140.63 km) |
| Welwyn Garden City to Tampere | 1,118.99 mi (1,800.84 km) |
| Welwyn Garden City to Tornio | 1,286.98 mi (2,071.20 km) |
| Welwyn Garden City to Turku | 1,042.73 mi (1,678.11 km) |
| Welwyn Garden City to Tuusula | 1,129.82 mi (1,818.26 km) |
