| Llantwit Major to South Plainfield (New Jersey) | 3,348.48 mi (5,388.87 km) |
| Llantwit Major to South Portland (Maine) | 3,053.05 mi (4,913.40 km) |
| Llantwit Major to South Riding (Virginia) | 3,548.69 mi (5,711.06 km) |
| Llantwit Major to South River (New Jersey) | 3,352.47 mi (5,395.28 km) |
| Llantwit Major to South Salt Lake (Utah) | 4,759.32 mi (7,659.38 km) |
| Llantwit Major to South San Francisco (California) | 5,265.25 mi (8,473.61 km) |
| Llantwit Major to South San Jose Hills (California) | 5,326.68 mi (8,572.47 km) |
| Llantwit Major to South Sioux City (Nebraska) | 4,126.94 mi (6,641.68 km) |
| Llantwit Major to South St. Paul (Minnesota) | 3,889.55 mi (6,259.63 km) |
| Llantwit Major to South Valley (New Mexico) | 4,880.03 mi (7,853.65 km) |
| Llantwit Major to South Venice (Florida) | 4,317.43 mi (6,948.24 km) |
| Llantwit Major to South Whittier (California) | 5,335.34 mi (8,586.40 km) |
| Llantwit Major to South Yarmouth (Massachusetts) | 3,127.98 mi (5,033.99 km) |
| Llantwit Major to Southaven (Mississippi) | 4,241.22 mi (6,825.58 km) |
| Llantwit Major to Southchase (Florida) | 4,207.51 mi (6,771.34 km) |
