| Harpenden to Arapgir | 2,048.60 mi (3,296.91 km) |
| Harpenden to Ardahan | 2,141.89 mi (3,447.05 km) |
| Harpenden to Ardesen | 2,065.49 mi (3,324.08 km) |
| Harpenden to Arhavi | 2,073.33 mi (3,336.70 km) |
| Harpenden to Aricak | 2,138.30 mi (3,441.27 km) |
| Harpenden to Armutlu | 1,584.30 mi (2,549.69 km) |
| Harpenden to Arnavutkoy | 1,551.94 mi (2,497.60 km) |
| Harpenden to Arpacay | 2,179.20 mi (3,507.08 km) |
| Harpenden to Arsin | 2,030.38 mi (3,267.58 km) |
| Harpenden to Arsuz | 2,058.39 mi (3,312.65 km) |
| Harpenden to Artvin | 2,101.34 mi (3,381.77 km) |
| Harpenden to Asagicinik | 1,865.60 mi (3,002.39 km) |
| Harpenden to Asarcik | 1,871.82 mi (3,012.40 km) |
| Harpenden to Askale | 2,104.64 mi (3,387.09 km) |
| Harpenden to Aslanapa | 1,684.47 mi (2,710.90 km) |
