| Llantrisant to San Luis Obispo (California) | 5,343.22 mi (8,599.09 km) |
| Llantrisant to San Marcos (California) | 5,348.92 mi (8,608.26 km) |
| Llantrisant to San Marcos (Texas) | 4,814.89 mi (7,748.82 km) |
| Llantrisant to San Marino (California) | 5,324.81 mi (8,569.46 km) |
| Llantrisant to San Mateo (California) | 5,264.26 mi (8,472.01 km) |
| Llantrisant to San Pablo (California) | 5,241.70 mi (8,435.71 km) |
| Llantrisant to San Rafael (California) | 5,245.61 mi (8,441.99 km) |
| Llantrisant to San Ramon (California) | 5,240.71 mi (8,434.10 km) |
| Llantrisant to San Tan Valley (Arizona) | 5,152.32 mi (8,291.86 km) |
| Llantrisant to Sand Springs (Oklahoma) | 4,425.19 mi (7,121.66 km) |
| Llantrisant to Sandusky (Ohio) | 3,647.79 mi (5,870.56 km) |
| Llantrisant to Sandy (Oregon) | 4,817.50 mi (7,753.02 km) |
| Llantrisant to Sandy (Utah) | 4,762.28 mi (7,664.15 km) |
| Llantrisant to Sandy Springs (Georgia) | 4,063.15 mi (6,539.01 km) |
| Llantrisant to Sanford (Florida) | 4,184.97 mi (6,735.05 km) |
