| Castricum to Superior (Colorado) | 4,796.67 mi (7,719.50 km) |
| Castricum to Superior (Wisconsin) | 4,013.11 mi (6,458.48 km) |
| Castricum to Surprise (Arizona) | 5,382.35 mi (8,662.06 km) |
| Castricum to Susanville (California) | 5,228.82 mi (8,414.97 km) |
| Castricum to Sussex (Wisconsin) | 4,051.59 mi (6,520.40 km) |
| Castricum to Suwanee (Georgia) | 4,345.56 mi (6,993.50 km) |
| Castricum to Swansea (Illinois) | 4,343.14 mi (6,989.60 km) |
| Castricum to Sweetwater (Florida) | 4,621.34 mi (7,437.32 km) |
| Castricum to Sweetwater (Texas) | 5,042.21 mi (8,114.65 km) |
| Castricum to Sycamore (Illinois) | 4,123.76 mi (6,636.55 km) |
| Castricum to Sylacauga (Alabama) | 4,475.36 mi (7,202.39 km) |
| Castricum to Sylvania (Ohio) | 3,955.07 mi (6,365.07 km) |
| Castricum to Syosset (New York) | 3,604.90 mi (5,801.53 km) |
| Castricum to Syracuse (New York) | 3,607.13 mi (5,805.12 km) |
| Castricum to Syracuse (Utah) | 4,947.53 mi (7,962.28 km) |
