| Grenchen to Ardahan | 1,783.62 mi (2,870.46 km) |
| Grenchen to Ardesen | 1,700.57 mi (2,736.80 km) |
| Grenchen to Arhavi | 1,711.21 mi (2,753.92 km) |
| Grenchen to Aricak | 1,746.18 mi (2,810.20 km) |
| Grenchen to Armutlu | 1,158.17 mi (1,863.90 km) |
| Grenchen to Arnavutkoy | 1,131.44 mi (1,820.87 km) |
| Grenchen to Arpacay | 1,821.09 mi (2,930.76 km) |
| Grenchen to Arsin | 1,658.53 mi (2,669.15 km) |
| Grenchen to Arsuz | 1,632.89 mi (2,627.89 km) |
| Grenchen to Artvin | 1,739.96 mi (2,800.20 km) |
| Grenchen to Asagicinik | 1,481.06 mi (2,383.54 km) |
| Grenchen to Asarcik | 1,484.52 mi (2,389.10 km) |
| Grenchen to Askale | 1,726.49 mi (2,778.52 km) |
| Grenchen to Aslanapa | 1,252.59 mi (2,015.85 km) |
| Grenchen to Atca | 1,233.98 mi (1,985.89 km) |
