| Niagara Falls to Aberaman | 3,423.30 mi (5,509.27 km) |
| Niagara Falls to Aberbargoed | 3,431.71 mi (5,522.80 km) |
| Niagara Falls to Aberdare | 3,422.50 mi (5,507.99 km) |
| Niagara Falls to Aberdeen | 3,345.42 mi (5,383.94 km) |
| Niagara Falls to Abergavenny | 3,436.68 mi (5,530.80 km) |
| Niagara Falls to Abergele | 3,378.47 mi (5,437.12 km) |
| Niagara Falls to Abertawe | 3,404.81 mi (5,479.51 km) |
| Niagara Falls to Abertillery | 3,434.59 mi (5,527.44 km) |
| Niagara Falls to Aberystwyth | 3,379.82 mi (5,439.30 km) |
| Niagara Falls to Abingdon | 3,509.39 mi (5,647.82 km) |
| Niagara Falls to Abram | 3,411.23 mi (5,489.85 km) |
| Niagara Falls to Accrington | 3,413.83 mi (5,494.03 km) |
| Niagara Falls to Acomb | 3,455.95 mi (5,561.82 km) |
| Niagara Falls to Acton | 3,553.50 mi (5,718.80 km) |
| Niagara Falls to Addlestone | 3,548.83 mi (5,711.29 km) |
