| Niagara Falls to Ames | 3,444.97 mi (5,544.14 km) |
| Niagara Falls to Amorebieta | 3,700.32 mi (5,955.10 km) |
| Niagara Falls to Amposta | 3,933.97 mi (6,331.11 km) |
| Niagara Falls to Amurrio | 3,693.86 mi (5,944.70 km) |
| Niagara Falls to Andoain | 3,732.22 mi (6,006.43 km) |
| Niagara Falls to Andraitx | 4,057.88 mi (6,530.53 km) |
| Niagara Falls to Andujar | 3,816.53 mi (6,142.12 km) |
| Niagara Falls to Antequera | 3,829.05 mi (6,162.26 km) |
| Niagara Falls to Antigua | 3,688.19 mi (5,935.56 km) |
| Niagara Falls to Aranda de Duero | 3,708.29 mi (5,967.92 km) |
| Niagara Falls to Aranjuez | 3,767.70 mi (6,063.53 km) |
| Niagara Falls to Archena | 3,941.68 mi (6,343.52 km) |
| Niagara Falls to Arcos de la Frontera | 3,780.00 mi (6,083.33 km) |
| Niagara Falls to Arenys de Mar | 3,990.48 mi (6,422.06 km) |
| Niagara Falls to Arenys de Munt | 3,988.93 mi (6,419.56 km) |
