| Llanelli to Sucha Beskidzka | 1,043.08 mi (1,678.68 km) |
| Llanelli to Suchanino | 959.71 mi (1,544.50 km) |
| Llanelli to Sulechow | 841.42 mi (1,354.13 km) |
| Llanelli to Sulecin | 817.95 mi (1,316.36 km) |
| Llanelli to Sulejowek | 1,078.28 mi (1,735.32 km) |
| Llanelli to Suwalki | 1,134.42 mi (1,825.67 km) |
| Llanelli to Swarzedz | 900.47 mi (1,449.17 km) |
| Llanelli to Swidnica | 891.43 mi (1,434.62 km) |
| Llanelli to Swidnik | 1,150.59 mi (1,851.69 km) |
| Llanelli to Swidwin | 843.41 mi (1,357.34 km) |
| Llanelli to Swiebodzice | 884.79 mi (1,423.93 km) |
| Llanelli to Swiecie | 952.78 mi (1,533.35 km) |
| Llanelli to Swiedbodzin | 836.78 mi (1,346.67 km) |
| Llanelli to Swietochlowice | 1,004.22 mi (1,616.13 km) |
| Llanelli to Swinoujscie | 782.13 mi (1,258.72 km) |
