| Canals to Southern Pines (North Carolina) | 4,211.06 mi (6,777.05 km) |
| Canals to Southfield (Michigan) | 4,155.96 mi (6,688.37 km) |
| Canals to Southgate (Michigan) | 4,162.08 mi (6,698.23 km) |
| Canals to Southlake (Texas) | 5,146.60 mi (8,282.65 km) |
| Canals to Spanaway (Washington) | 5,496.41 mi (8,845.62 km) |
| Canals to Spanish Fork (Utah) | 5,455.79 mi (8,780.25 km) |
| Canals to Spanish Lake (Missouri) | 4,598.39 mi (7,400.39 km) |
| Canals to Spanish Springs (Nevada) | 5,780.89 mi (9,303.45 km) |
| Canals to Sparks (Nevada) | 5,786.79 mi (9,312.94 km) |
| Canals to Spartanburg (South Carolina) | 4,343.37 mi (6,989.98 km) |
| Canals to Spearfish (South Dakota) | 4,955.19 mi (7,974.61 km) |
| Canals to Speedway (Indiana) | 4,381.12 mi (7,050.73 km) |
| Canals to Spencer (Iowa) | 4,654.61 mi (7,490.88 km) |
| Canals to Spokane (Washington) | 5,306.41 mi (8,539.84 km) |
| Canals to Spokane Valley (Washington) | 5,300.04 mi (8,529.60 km) |
