| Katy to Southern Pines (North Carolina) | 1,026.14 mi (1,651.42 km) |
| Katy to Southfield (Michigan) | 1,120.15 mi (1,802.71 km) |
| Katy to Southgate (Michigan) | 1,108.32 mi (1,783.67 km) |
| Katy to Southlake (Texas) | 231.96 mi (373.30 km) |
| Katy to Spanaway (Washington) | 1,854.69 mi (2,984.83 km) |
| Katy to Spanish Fork (Utah) | 1,141.29 mi (1,836.73 km) |
| Katy to Spanish Lake (Missouri) | 699.41 mi (1,125.59 km) |
| Katy to Spanish Springs (Nevada) | 1,508.95 mi (2,428.42 km) |
| Katy to Sparks (Nevada) | 1,509.39 mi (2,429.13 km) |
| Katy to Spartanburg (South Carolina) | 885.36 mi (1,424.86 km) |
| Katy to Spearfish (South Dakota) | 1,105.36 mi (1,778.91 km) |
| Katy to Speedway (Indiana) | 878.38 mi (1,413.62 km) |
| Katy to Spencer (Iowa) | 923.60 mi (1,486.39 km) |
| Katy to Spokane (Washington) | 1,685.84 mi (2,713.10 km) |
| Katy to Spokane Valley (Washington) | 1,678.52 mi (2,701.32 km) |
