| Llantrisant to Scottsboro (Alabama) | 4,097.91 mi (6,594.95 km) |
| Llantrisant to Scottsdale (Arizona) | 5,135.23 mi (8,264.35 km) |
| Llantrisant to Scranton (Pennsylvania) | 3,365.89 mi (5,416.88 km) |
| Llantrisant to Seabrook (Maryland) | 3,519.77 mi (5,664.53 km) |
| Llantrisant to Seabrook (Texas) | 4,714.02 mi (7,586.49 km) |
| Llantrisant to Seaford (New York) | 3,307.90 mi (5,323.55 km) |
| Llantrisant to Seagoville (Texas) | 4,617.16 mi (7,430.61 km) |
| Llantrisant to Seal Beach (California) | 5,344.16 mi (8,600.60 km) |
| Llantrisant to Searcy (Arkansas) | 4,297.60 mi (6,916.32 km) |
| Llantrisant to Seaside (California) | 5,302.21 mi (8,533.09 km) |
| Llantrisant to SeaTac (Washington) | 4,703.53 mi (7,569.60 km) |
| Llantrisant to Seattle (Washington) | 4,694.36 mi (7,554.84 km) |
| Llantrisant to Sebastian (Florida) | 4,201.26 mi (6,761.28 km) |
| Llantrisant to Sebring (Florida) | 4,257.66 mi (6,852.05 km) |
| Llantrisant to Secaucus (New Jersey) | 3,326.77 mi (5,353.91 km) |
