| Katy to Wichita (Kansas) | 552.59 mi (889.30 km) |
| Katy to Wichita Falls (Texas) | 325.39 mi (523.66 km) |
| Katy to Wickliffe (Ohio) | 1,144.26 mi (1,841.52 km) |
| Katy to Wildomar (California) | 1,284.26 mi (2,066.82 km) |
| Katy to Wildwood (Florida) | 835.76 mi (1,345.03 km) |
| Katy to Wildwood (Missouri) | 674.94 mi (1,086.21 km) |
| Katy to Wilkes-Barre (Pennsylvania) | 1,368.02 mi (2,201.62 km) |
| Katy to Wilkinsburg (Pennsylvania) | 1,161.06 mi (1,868.55 km) |
| Katy to Williamsburg (Virginia) | 1,213.77 mi (1,953.38 km) |
| Katy to Williamsport (Pennsylvania) | 1,315.54 mi (2,117.16 km) |
| Katy to Williamstown (New Jersey) | 1,362.47 mi (2,192.68 km) |
| Katy to Willimantic (Connecticut) | 1,552.06 mi (2,497.80 km) |
| Katy to Williston (North Dakota) | 1,336.25 mi (2,150.49 km) |
| Katy to Willmar (Minnesota) | 1,060.12 mi (1,706.10 km) |
| Katy to Willoughby (Ohio) | 1,148.38 mi (1,848.14 km) |
