| Welwyn Garden City to Sucha Beskidzka | 873.25 mi (1,405.35 km) |
| Welwyn Garden City to Suchanino | 797.27 mi (1,283.09 km) |
| Welwyn Garden City to Sulechow | 672.29 mi (1,081.95 km) |
| Welwyn Garden City to Sulecin | 649.47 mi (1,045.21 km) |
| Welwyn Garden City to Sulejowek | 910.07 mi (1,464.62 km) |
| Welwyn Garden City to Suwalki | 970.92 mi (1,562.55 km) |
| Welwyn Garden City to Swarzedz | 732.07 mi (1,178.16 km) |
| Welwyn Garden City to Swidnica | 721.42 mi (1,161.01 km) |
| Welwyn Garden City to Swidnik | 981.21 mi (1,579.11 km) |
| Welwyn Garden City to Swidwin | 679.09 mi (1,092.89 km) |
| Welwyn Garden City to Swiebodzice | 714.78 mi (1,150.32 km) |
| Welwyn Garden City to Swiecie | 787.04 mi (1,266.61 km) |
| Welwyn Garden City to Swiedbodzin | 667.94 mi (1,074.95 km) |
| Welwyn Garden City to Swietochlowice | 834.22 mi (1,342.55 km) |
| Welwyn Garden City to Swinoujscie | 618.70 mi (995.69 km) |
