| Llantwit Major to St. Simons (Georgia) | 4,070.23 mi (6,550.40 km) |
| Llantwit Major to Stafford (Texas) | 4,732.46 mi (7,616.17 km) |
| Llantwit Major to Stallings (North Carolina) | 3,852.43 mi (6,199.89 km) |
| Llantwit Major to Stamford (Connecticut) | 3,290.70 mi (5,295.86 km) |
| Llantwit Major to Stanford (California) | 5,270.54 mi (8,482.11 km) |
| Llantwit Major to Stanton (California) | 5,341.57 mi (8,596.43 km) |
| Llantwit Major to Star (Idaho) | 4,744.86 mi (7,636.11 km) |
| Llantwit Major to Starkville (Mississippi) | 4,267.55 mi (6,867.96 km) |
| Llantwit Major to State College (Pennsylvania) | 3,480.57 mi (5,601.44 km) |
| Llantwit Major to Staten Island (New York) | 3,337.14 mi (5,370.60 km) |
| Llantwit Major to Statesboro (Georgia) | 4,025.74 mi (6,478.80 km) |
| Llantwit Major to Statesville (North Carolina) | 3,829.70 mi (6,163.31 km) |
| Llantwit Major to Staunton (Virginia) | 3,646.14 mi (5,867.90 km) |
| Llantwit Major to Steamboat Springs (Colorado) | 4,598.74 mi (7,400.95 km) |
| Llantwit Major to Steiner Ranch (Texas) | 4,787.58 mi (7,704.86 km) |
