| Risca to Scottsboro (Alabama) | 4,108.03 mi (6,611.24 km) |
| Risca to Scottsdale (Arizona) | 5,142.60 mi (8,276.21 km) |
| Risca to Scranton (Pennsylvania) | 3,376.07 mi (5,433.26 km) |
| Risca to Seabrook (Maryland) | 3,530.19 mi (5,681.29 km) |
| Risca to Seabrook (Texas) | 4,723.82 mi (7,602.26 km) |
| Risca to Seaford (New York) | 3,318.37 mi (5,340.40 km) |
| Risca to Seagoville (Texas) | 4,626.46 mi (7,445.56 km) |
| Risca to Seal Beach (California) | 5,350.70 mi (8,611.12 km) |
| Risca to Searcy (Arkansas) | 4,307.09 mi (6,931.59 km) |
| Risca to Seaside (California) | 5,307.90 mi (8,542.24 km) |
| Risca to SeaTac (Washington) | 4,707.79 mi (7,576.45 km) |
| Risca to Seattle (Washington) | 4,698.58 mi (7,561.64 km) |
| Risca to Sebastian (Florida) | 4,212.59 mi (6,779.52 km) |
| Risca to Sebring (Florida) | 4,268.94 mi (6,870.20 km) |
| Risca to Secaucus (New Jersey) | 3,337.17 mi (5,370.66 km) |
