| Llanelli to Sangeorgiu de Mures | 1,332.84 mi (2,145.00 km) |
| Llanelli to Sangeorz-Bai | 1,318.14 mi (2,121.35 km) |
| Llanelli to Sannicolau Mare | 1,184.14 mi (1,905.69 km) |
| Llanelli to Santana | 1,212.58 mi (1,951.45 km) |
| Llanelli to Satu Mare | 1,230.04 mi (1,979.56 km) |
| Llanelli to Scobinti | 1,414.29 mi (2,276.08 km) |
| Llanelli to Scornicesti | 1,401.43 mi (2,255.38 km) |
| Llanelli to Sebes | 1,312.96 mi (2,113.00 km) |
| Llanelli to Seini | 1,248.09 mi (2,008.61 km) |
| Llanelli to Sfantu-Gheorghe | 1,410.57 mi (2,270.10 km) |
| Llanelli to Sibiu | 1,343.11 mi (2,161.52 km) |
| Llanelli to Sighetu Marmatiei | 1,269.31 mi (2,042.75 km) |
| Llanelli to Sighisoara | 1,356.91 mi (2,183.74 km) |
| Llanelli to Simeria | 1,292.69 mi (2,080.39 km) |
| Llanelli to Sinaia | 1,417.21 mi (2,280.78 km) |
