| Houston to Ashtabula (Ohio) | 1,165.60 mi (1,875.85 km) |
| Houston to Ashwaubenon (Wisconsin) | 1,090.81 mi (1,755.49 km) |
| Houston to Aspen Hill (Maryland) | 1,221.82 mi (1,966.33 km) |
| Houston to Astoria (Oregon) | 1,900.86 mi (3,059.14 km) |
| Houston to Atascadero (California) | 1,518.94 mi (2,444.49 km) |
| Houston to Atascocita (Texas) | 17.59 mi (28.31 km) |
| Houston to Atchison (Kansas) | 675.64 mi (1,087.34 km) |
| Houston to Athens (Alabama) | 601.45 mi (967.94 km) |
| Houston to Athens (Georgia) | 761.09 mi (1,224.86 km) |
| Houston to Athens (Ohio) | 1,001.21 mi (1,611.29 km) |
| Houston to Athens (Tennessee) | 739.14 mi (1,189.53 km) |
| Houston to Athens (Texas) | 169.13 mi (272.18 km) |
| Houston to Atlanta (Georgia) | 699.80 mi (1,126.22 km) |
| Houston to Atlantic Beach (Florida) | 836.08 mi (1,345.55 km) |
| Houston to Atlantic City (New Jersey) | 1,358.13 mi (2,185.70 km) |
