| Houston to Acqui Terme | 5,415.35 mi (8,715.17 km) |
| Houston to Acri | 5,950.63 mi (9,576.62 km) |
| Houston to Adelfia | 5,909.96 mi (9,511.16 km) |
| Houston to Adrano | 5,956.57 mi (9,586.18 km) |
| Houston to Adria | 5,550.88 mi (8,933.28 km) |
| Houston to Afragola | 5,805.04 mi (9,342.31 km) |
| Houston to Agliana | 5,550.11 mi (8,932.04 km) |
| Houston to Agrate Brianza | 5,420.09 mi (8,722.79 km) |
| Houston to Agrigento | 5,914.25 mi (9,518.07 km) |
| Houston to Agropoli | 5,856.13 mi (9,424.52 km) |
| Houston to Ala | 5,481.94 mi (8,822.33 km) |
| Houston to Alassio | 5,426.31 mi (8,732.79 km) |
| Houston to Alatri | 5,731.73 mi (9,224.34 km) |
| Houston to Alba | 5,396.09 mi (8,684.17 km) |
| Houston to Albano Laziale | 5,702.52 mi (9,177.32 km) |
