| Llantwit Major to Sereflikochisar | 1,970.46 mi (3,171.15 km) |
| Llantwit Major to Serik | 1,958.41 mi (3,151.75 km) |
| Llantwit Major to Serinhisar | 1,852.72 mi (2,981.67 km) |
| Llantwit Major to Serinyol | 2,195.94 mi (3,534.03 km) |
| Llantwit Major to Seydisehir | 1,966.58 mi (3,164.91 km) |
| Llantwit Major to Seyhan | 2,131.74 mi (3,430.70 km) |
| Llantwit Major to Seyitgazi | 1,829.15 mi (2,943.73 km) |
| Llantwit Major to Siirt | 2,372.27 mi (3,817.80 km) |
| Llantwit Major to Sile | 1,711.76 mi (2,754.81 km) |
| Llantwit Major to Silifke | 2,100.56 mi (3,380.53 km) |
| Llantwit Major to Silivri | 1,658.41 mi (2,668.96 km) |
| Llantwit Major to Silopi | 2,423.80 mi (3,900.73 km) |
| Llantwit Major to Simav | 1,773.49 mi (2,854.16 km) |
| Llantwit Major to Sinanpasa | 1,840.73 mi (2,962.36 km) |
| Llantwit Major to Sindirgi | 1,733.17 mi (2,789.26 km) |
