| Niederkassel to Archdale (North Carolina) | 4,230.10 mi (6,807.70 km) |
| Niederkassel to Arden-Arcade (California) | 5,514.83 mi (8,875.27 km) |
| Niederkassel to Ardmore (Oklahoma) | 4,979.78 mi (8,014.19 km) |
| Niederkassel to Ardmore (Pennsylvania) | 3,851.56 mi (6,198.48 km) |
| Niederkassel to Arecibo (Puerto Rico) | 4,533.89 mi (7,296.60 km) |
| Niederkassel to Arkadelphia (Arkansas) | 4,832.08 mi (7,776.49 km) |
| Niederkassel to Arkansas City (Kansas) | 4,825.22 mi (7,765.45 km) |
| Niederkassel to Arlington (Tennessee) | 4,644.15 mi (7,474.04 km) |
| Niederkassel to Arlington (Texas) | 5,058.98 mi (8,141.64 km) |
| Niederkassel to Arlington (Virginia) | 3,975.25 mi (6,397.55 km) |
| Niederkassel to Arlington (Washington) | 4,964.86 mi (7,990.17 km) |
| Niederkassel to Arlington Heights (Illinois) | 4,242.60 mi (6,827.80 km) |
| Niederkassel to Arnold (Maryland) | 3,943.45 mi (6,346.37 km) |
| Niederkassel to Arnold (Missouri) | 4,511.29 mi (7,260.22 km) |
| Niederkassel to Arroyo Grande (California) | 5,700.12 mi (9,173.46 km) |
