| Risca to Sanford (Maine) | 3,092.03 mi (4,976.14 km) |
| Risca to Sanford (North Carolina) | 3,785.49 mi (6,092.16 km) |
| Risca to Sanger (California) | 5,232.50 mi (8,420.89 km) |
| Risca to Santa Ana (California) | 5,345.40 mi (8,602.59 km) |
| Risca to Santa Barbara (California) | 5,366.52 mi (8,636.57 km) |
| Risca to Santa Clara (California) | 5,269.97 mi (8,481.20 km) |
| Risca to Santa Clara (Oregon) | 4,919.02 mi (7,916.39 km) |
| Risca to Santa Clarita (California) | 5,327.25 mi (8,573.38 km) |
| Risca to Santa Cruz (California) | 5,294.11 mi (8,520.05 km) |
| Risca to Santa Fe (New Mexico) | 4,826.60 mi (7,767.66 km) |
| Risca to Santa Fe (Texas) | 4,736.49 mi (7,622.64 km) |
| Risca to Santa Fe Springs (California) | 5,340.32 mi (8,594.41 km) |
| Risca to Santa Maria (California) | 5,361.04 mi (8,627.77 km) |
| Risca to Santa Monica (California) | 5,349.01 mi (8,608.40 km) |
| Risca to Santa Paula (California) | 5,349.44 mi (8,609.09 km) |
