| Niagara Falls to Alcorcon | 3,746.30 mi (6,029.09 km) |
| Niagara Falls to Alcoy | 3,958.49 mi (6,370.58 km) |
| Niagara Falls to Alcudia | 4,078.94 mi (6,564.41 km) |
| Niagara Falls to Aldaya | 3,931.33 mi (6,326.87 km) |
| Niagara Falls to Alella | 3,982.35 mi (6,408.97 km) |
| Niagara Falls to Alfafar | 3,936.12 mi (6,334.58 km) |
| Niagara Falls to Alfaro | 3,778.71 mi (6,081.25 km) |
| Niagara Falls to Algeciras | 3,818.79 mi (6,145.75 km) |
| Niagara Falls to Algemesi | 3,942.34 mi (6,344.59 km) |
| Niagara Falls to Algete | 3,753.10 mi (6,040.03 km) |
| Niagara Falls to Alginet | 3,938.33 mi (6,338.12 km) |
| Niagara Falls to Alguazas | 3,946.66 mi (6,351.54 km) |
| Niagara Falls to Alhama de Murcia | 3,945.39 mi (6,349.49 km) |
| Niagara Falls to Alhaurin de la Torre | 3,842.16 mi (6,183.36 km) |
| Niagara Falls to Alhaurin el Grande | 3,837.08 mi (6,175.19 km) |
