| Boulder to Aberaman | 4,556.87 mi (7,333.58 km) |
| Boulder to Aberbargoed | 4,564.35 mi (7,345.61 km) |
| Boulder to Aberdare | 4,555.95 mi (7,332.09 km) |
| Boulder to Aberdeen | 4,389.04 mi (7,063.47 km) |
| Boulder to Abergavenny | 4,566.57 mi (7,349.18 km) |
| Boulder to Abergele | 4,489.96 mi (7,225.89 km) |
| Boulder to Abertawe | 4,541.94 mi (7,309.54 km) |
| Boulder to Abertillery | 4,566.33 mi (7,348.80 km) |
| Boulder to Aberystwyth | 4,506.25 mi (7,252.11 km) |
| Boulder to Abingdon | 4,633.17 mi (7,456.37 km) |
| Boulder to Abram | 4,514.76 mi (7,265.81 km) |
| Boulder to Accrington | 4,512.65 mi (7,262.41 km) |
| Boulder to Acomb | 4,545.90 mi (7,315.92 km) |
| Boulder to Acton | 4,674.39 mi (7,522.71 km) |
| Boulder to Addlestone | 4,672.80 mi (7,520.14 km) |
