| Slupca to Superior (Colorado) | 5,208.57 mi (8,382.39 km) |
| Slupca to Superior (Wisconsin) | 4,447.05 mi (7,156.84 km) |
| Slupca to Surprise (Arizona) | 5,783.90 mi (9,308.28 km) |
| Slupca to Susanville (California) | 5,564.41 mi (8,955.05 km) |
| Slupca to Sussex (Wisconsin) | 4,514.28 mi (7,265.03 km) |
| Slupca to Suwanee (Georgia) | 4,852.43 mi (7,809.23 km) |
| Slupca to Swansea (Illinois) | 4,817.72 mi (7,753.38 km) |
| Slupca to Sweetwater (Florida) | 5,156.03 mi (8,297.82 km) |
| Slupca to Sweetwater (Texas) | 5,500.47 mi (8,852.16 km) |
| Slupca to Sycamore (Illinois) | 4,589.58 mi (7,386.21 km) |
| Slupca to Sylacauga (Alabama) | 4,978.68 mi (8,012.41 km) |
| Slupca to Sylvania (Ohio) | 4,437.50 mi (7,141.47 km) |
| Slupca to Syosset (New York) | 4,117.61 mi (6,626.65 km) |
| Slupca to Syracuse (New York) | 4,105.41 mi (6,607.02 km) |
| Slupca to Syracuse (Utah) | 5,323.64 mi (8,567.58 km) |
