| Katy to Altus (Oklahoma) | 392.60 mi (631.83 km) |
| Katy to Alum Rock (California) | 1,578.81 mi (2,540.85 km) |
| Katy to Alvin (Texas) | 42.84 mi (68.94 km) |
| Katy to Amarillo (Texas) | 511.36 mi (822.96 km) |
| Katy to Amelia (Ohio) | 918.02 mi (1,477.41 km) |
| Katy to American Canyon (California) | 1,614.00 mi (2,597.49 km) |
| Katy to American Fork (Utah) | 1,158.41 mi (1,864.29 km) |
| Katy to Americus (Georgia) | 705.57 mi (1,135.50 km) |
| Katy to Ames (Iowa) | 854.30 mi (1,374.87 km) |
| Katy to Amherst (Ohio) | 1,105.39 mi (1,778.96 km) |
| Katy to Ammon (Idaho) | 1,296.50 mi (2,086.51 km) |
| Katy to Amsterdam (New York) | 1,501.00 mi (2,415.63 km) |
| Katy to Anacortes (Washington) | 1,913.24 mi (3,079.06 km) |
| Katy to Anaheim (California) | 1,320.13 mi (2,124.55 km) |
| Katy to Anchorage (Alaska) | 3,227.99 mi (5,194.94 km) |
