| Llanelli to Sereflikochisar | 2,003.18 mi (3,223.81 km) |
| Llanelli to Serik | 1,992.29 mi (3,206.28 km) |
| Llanelli to Serinhisar | 1,886.77 mi (3,036.47 km) |
| Llanelli to Serinyol | 2,228.94 mi (3,587.14 km) |
| Llanelli to Seydisehir | 2,000.18 mi (3,218.97 km) |
| Llanelli to Seyhan | 2,164.74 mi (3,483.81 km) |
| Llanelli to Seyitgazi | 1,862.33 mi (2,997.13 km) |
| Llanelli to Siirt | 2,403.37 mi (3,867.85 km) |
| Llanelli to Sile | 1,744.50 mi (2,807.50 km) |
| Llanelli to Silifke | 2,134.04 mi (3,434.40 km) |
| Llanelli to Silivri | 1,691.52 mi (2,722.23 km) |
| Llanelli to Silopi | 2,455.03 mi (3,951.00 km) |
| Llanelli to Simav | 1,807.16 mi (2,908.35 km) |
| Llanelli to Sinanpasa | 1,874.24 mi (3,016.30 km) |
| Llanelli to Sindirgi | 1,766.95 mi (2,843.63 km) |
