| Regensburg to Ardea | 511.79 mi (823.65 km) |
| Regensburg to Arenzano | 357.05 mi (574.62 km) |
| Regensburg to Arese | 278.09 mi (447.54 km) |
| Regensburg to Arezzo | 383.83 mi (617.71 km) |
| Regensburg to Argelato | 308.79 mi (496.96 km) |
| Regensburg to Argenta | 304.34 mi (489.78 km) |
| Regensburg to Ariano Irpino | 562.66 mi (905.51 km) |
| Regensburg to Ariccia | 505.17 mi (812.99 km) |
| Regensburg to Arluno | 284.30 mi (457.53 km) |
| Regensburg to Arona | 279.03 mi (449.05 km) |
| Regensburg to Artena | 504.85 mi (812.47 km) |
| Regensburg to Arzachena | 563.67 mi (907.13 km) |
| Regensburg to Arzano | 569.68 mi (916.80 km) |
| Regensburg to Arzignano | 244.37 mi (393.27 km) |
| Regensburg to Ascoli Piceno | 432.11 mi (695.41 km) |
