| Harpenden to Altinova | 1,604.41 mi (2,582.05 km) |
| Harpenden to Altintas | 1,701.34 mi (2,738.04 km) |
| Harpenden to Altinyayla | 1,965.63 mi (3,163.38 km) |
| Harpenden to Altunhisar | 1,923.18 mi (3,095.06 km) |
| Harpenden to Alucra | 2,006.61 mi (3,229.32 km) |
| Harpenden to Amasra | 1,679.60 mi (2,703.05 km) |
| Harpenden to Amasya | 1,869.07 mi (3,007.98 km) |
| Harpenden to Anamur | 1,952.19 mi (3,141.74 km) |
| Harpenden to Andirin | 2,023.87 mi (3,257.10 km) |
| Harpenden to Ankara | 1,774.90 mi (2,856.42 km) |
| Harpenden to Antalya | 1,827.24 mi (2,940.66 km) |
| Harpenden to Araban | 2,086.37 mi (3,357.69 km) |
| Harpenden to Arac | 1,739.63 mi (2,799.67 km) |
| Harpenden to Arakli | 2,036.01 mi (3,276.64 km) |
| Harpenden to Aralik | 2,269.36 mi (3,652.18 km) |
