| Niederkassel to Aberbargoed | 447.30 mi (719.86 km) |
| Niederkassel to Aberdare | 456.82 mi (735.17 km) |
| Niederkassel to Aberdeen | 573.02 mi (922.18 km) |
| Niederkassel to Abergavenny | 439.15 mi (706.74 km) |
| Niederkassel to Abergele | 481.46 mi (774.84 km) |
| Niederkassel to Abertawe | 478.08 mi (769.40 km) |
| Niederkassel to Abertillery | 443.45 mi (713.66 km) |
| Niederkassel to Aberystwyth | 488.90 mi (786.81 km) |
| Niederkassel to Abingdon | 364.28 mi (586.25 km) |
| Niederkassel to Abram | 447.71 mi (720.51 km) |
| Niederkassel to Accrington | 445.53 mi (717.01 km) |
| Niederkassel to Acomb | 406.33 mi (653.93 km) |
| Niederkassel to Acton | 319.96 mi (514.93 km) |
| Niederkassel to Addlestone | 328.55 mi (528.75 km) |
| Niederkassel to Adel | 419.46 mi (675.06 km) |
