| Gahanna to Alenquer | 3,814.45 mi (6,138.76 km) |
| Gahanna to Alfena | 3,771.97 mi (6,070.39 km) |
| Gahanna to Alijo | 3,820.10 mi (6,147.86 km) |
| Gahanna to Aljustrel | 3,890.88 mi (6,261.77 km) |
| Gahanna to Almada | 3,819.02 mi (6,146.12 km) |
| Gahanna to Almargem | 3,808.41 mi (6,129.05 km) |
| Gahanna to Almeirim | 3,829.03 mi (6,162.23 km) |
| Gahanna to Amadora | 3,813.77 mi (6,137.67 km) |
| Gahanna to Amarante | 3,792.66 mi (6,103.69 km) |
| Gahanna to Amares | 3,769.86 mi (6,067.00 km) |
| Gahanna to Amora | 3,822.59 mi (6,151.86 km) |
| Gahanna to Anadia | 3,800.25 mi (6,115.91 km) |
| Gahanna to Angra do Heroismo | 2,925.47 mi (4,708.09 km) |
| Gahanna to Ansiao | 3,815.86 mi (6,141.03 km) |
| Gahanna to Anta | 3,774.08 mi (6,073.80 km) |
