| Harpenden to Afsin | 2,017.19 mi (3,246.35 km) |
| Harpenden to Afyonkarahisar | 1,732.51 mi (2,788.20 km) |
| Harpenden to Aglasun | 1,783.94 mi (2,870.97 km) |
| Harpenden to Agri | 2,213.15 mi (3,561.72 km) |
| Harpenden to Ahlat | 2,230.07 mi (3,588.95 km) |
| Harpenden to Ahmetli | 1,639.74 mi (2,638.90 km) |
| Harpenden to Akcaabat | 2,011.42 mi (3,237.07 km) |
| Harpenden to Akcadag | 2,056.90 mi (3,310.26 km) |
| Harpenden to Akcakale | 2,170.94 mi (3,493.80 km) |
| Harpenden to Akcakoca | 1,654.09 mi (2,662.00 km) |
| Harpenden to Akdagmadeni | 1,912.48 mi (3,077.84 km) |
| Harpenden to Akhisar | 1,617.08 mi (2,602.44 km) |
| Harpenden to Akkus | 1,913.09 mi (3,078.82 km) |
| Harpenden to Aksaray | 1,892.13 mi (3,045.08 km) |
| Harpenden to Aksehir | 1,786.33 mi (2,874.82 km) |
