| Llantrisant to St. Simons (Georgia) | 4,072.43 mi (6,553.94 km) |
| Llantrisant to Stafford (Texas) | 4,733.12 mi (7,617.22 km) |
| Llantrisant to Stallings (North Carolina) | 3,854.13 mi (6,202.62 km) |
| Llantrisant to Stamford (Connecticut) | 3,292.17 mi (5,298.23 km) |
| Llantrisant to Stanford (California) | 5,267.08 mi (8,476.55 km) |
| Llantrisant to Stanton (California) | 5,338.97 mi (8,592.25 km) |
| Llantrisant to Star (Idaho) | 4,741.37 mi (7,630.49 km) |
| Llantrisant to Starkville (Mississippi) | 4,268.52 mi (6,869.51 km) |
| Llantrisant to State College (Pennsylvania) | 3,481.63 mi (5,603.13 km) |
| Llantrisant to Staten Island (New York) | 3,338.64 mi (5,373.02 km) |
| Llantrisant to Statesboro (Georgia) | 4,027.70 mi (6,481.96 km) |
| Llantrisant to Statesville (North Carolina) | 3,831.26 mi (6,165.82 km) |
| Llantrisant to Staunton (Virginia) | 3,647.52 mi (5,870.12 km) |
| Llantrisant to Steamboat Springs (Colorado) | 4,596.66 mi (7,397.61 km) |
| Llantrisant to Steiner Ranch (Texas) | 4,787.85 mi (7,705.30 km) |
