| Llantwit Major to Sangeorgiu de Mures | 1,302.01 mi (2,095.39 km) |
| Llantwit Major to Sangeorz-Bai | 1,288.09 mi (2,072.97 km) |
| Llantwit Major to Sannicolau Mare | 1,151.87 mi (1,853.76 km) |
| Llantwit Major to Santana | 1,180.77 mi (1,900.27 km) |
| Llantwit Major to Satu Mare | 1,199.90 mi (1,931.05 km) |
| Llantwit Major to Scobinti | 1,384.84 mi (2,228.68 km) |
| Llantwit Major to Scornicesti | 1,369.19 mi (2,203.50 km) |
| Llantwit Major to Sebes | 1,281.42 mi (2,062.25 km) |
| Llantwit Major to Seini | 1,218.02 mi (1,960.21 km) |
| Llantwit Major to Sfantu-Gheorghe | 1,379.56 mi (2,220.19 km) |
| Llantwit Major to Sibiu | 1,311.60 mi (2,110.82 km) |
| Llantwit Major to Sighetu Marmatiei | 1,239.57 mi (1,994.89 km) |
| Llantwit Major to Sighisoara | 1,325.90 mi (2,133.83 km) |
| Llantwit Major to Simeria | 1,260.92 mi (2,029.26 km) |
| Llantwit Major to Sinaia | 1,385.76 mi (2,230.16 km) |
