| Katy to Superior (Colorado) | 876.69 mi (1,410.90 km) |
| Katy to Superior (Wisconsin) | 1,185.18 mi (1,907.37 km) |
| Katy to Surprise (Arizona) | 1,011.44 mi (1,627.75 km) |
| Katy to Susanville (California) | 1,573.78 mi (2,532.76 km) |
| Katy to Sussex (Wisconsin) | 1,013.30 mi (1,630.75 km) |
| Katy to Suwanee (Georgia) | 749.59 mi (1,206.35 km) |
| Katy to Swansea (Illinois) | 691.10 mi (1,112.22 km) |
| Katy to Sweetwater (Florida) | 983.86 mi (1,583.37 km) |
| Katy to Sweetwater (Texas) | 327.71 mi (527.40 km) |
| Katy to Sycamore (Illinois) | 932.65 mi (1,500.95 km) |
| Katy to Sylacauga (Alabama) | 610.46 mi (982.44 km) |
| Katy to Sylvania (Ohio) | 1,065.71 mi (1,715.09 km) |
| Katy to Syosset (New York) | 1,465.30 mi (2,358.18 km) |
| Katy to Syracuse (New York) | 1,420.78 mi (2,286.52 km) |
| Katy to Syracuse (Utah) | 1,198.15 mi (1,928.23 km) |
