| Cwmbran to San Luis Obispo (California) | 5,349.36 mi (8,608.97 km) |
| Cwmbran to San Marcos (California) | 5,356.07 mi (8,619.76 km) |
| Cwmbran to San Marcos (Texas) | 4,825.90 mi (7,766.54 km) |
| Cwmbran to San Marino (California) | 5,331.62 mi (8,580.42 km) |
| Cwmbran to San Mateo (California) | 5,269.72 mi (8,480.80 km) |
| Cwmbran to San Pablo (California) | 5,247.09 mi (8,444.38 km) |
| Cwmbran to San Rafael (California) | 5,250.95 mi (8,450.59 km) |
| Cwmbran to San Ramon (California) | 5,246.20 mi (8,442.95 km) |
| Cwmbran to San Tan Valley (Arizona) | 5,160.49 mi (8,305.01 km) |
| Cwmbran to Sand Springs (Oklahoma) | 4,435.41 mi (7,138.11 km) |
| Cwmbran to Sandusky (Ohio) | 3,658.91 mi (5,888.45 km) |
| Cwmbran to Sandy (Oregon) | 4,821.64 mi (7,759.68 km) |
| Cwmbran to Sandy (Utah) | 4,769.11 mi (7,675.15 km) |
| Cwmbran to Sandy Springs (Georgia) | 4,075.48 mi (6,558.86 km) |
| Cwmbran to Sanford (Florida) | 4,198.53 mi (6,756.87 km) |
