| Katy to Ashtabula (Ohio) | 1,182.81 mi (1,903.55 km) |
| Katy to Ashwaubenon (Wisconsin) | 1,099.68 mi (1,769.77 km) |
| Katy to Aspen Hill (Maryland) | 1,243.20 mi (2,000.74 km) |
| Katy to Astoria (Oregon) | 1,881.58 mi (3,028.12 km) |
| Katy to Atascadero (California) | 1,493.93 mi (2,404.25 km) |
| Katy to Atascocita (Texas) | 40.46 mi (65.12 km) |
| Katy to Atchison (Kansas) | 676.34 mi (1,088.46 km) |
| Katy to Athens (Alabama) | 622.78 mi (1,002.27 km) |
| Katy to Athens (Georgia) | 785.24 mi (1,263.73 km) |
| Katy to Athens (Ohio) | 1,020.17 mi (1,641.80 km) |
| Katy to Athens (Tennessee) | 761.08 mi (1,224.85 km) |
| Katy to Athens (Texas) | 166.76 mi (268.38 km) |
| Katy to Atlanta (Georgia) | 723.83 mi (1,164.90 km) |
| Katy to Atlantic Beach (Florida) | 862.69 mi (1,388.36 km) |
| Katy to Atlantic City (New Jersey) | 1,380.01 mi (2,220.90 km) |
