| Herdecke to Ardea | 717.97 mi (1,155.46 km) |
| Herdecke to Arenzano | 486.78 mi (783.40 km) |
| Herdecke to Arese | 411.03 mi (661.49 km) |
| Herdecke to Arezzo | 586.13 mi (943.29 km) |
| Herdecke to Argelato | 504.89 mi (812.54 km) |
| Herdecke to Argenta | 510.77 mi (822.00 km) |
| Herdecke to Ariano Irpino | 795.81 mi (1,280.73 km) |
| Herdecke to Ariccia | 713.29 mi (1,147.93 km) |
| Herdecke to Arluno | 413.38 mi (665.27 km) |
| Herdecke to Arona | 393.27 mi (632.91 km) |
| Herdecke to Artena | 716.39 mi (1,152.92 km) |
| Herdecke to Arzachena | 718.81 mi (1,156.81 km) |
| Herdecke to Arzano | 793.89 mi (1,277.65 km) |
| Herdecke to Arzignano | 443.88 mi (714.36 km) |
| Herdecke to Ascoli Piceno | 657.14 mi (1,057.57 km) |
