| Donegal to Ardea | 1,301.89 mi (2,095.20 km) |
| Donegal to Arenzano | 1,028.80 mi (1,655.69 km) |
| Donegal to Arese | 982.93 mi (1,581.87 km) |
| Donegal to Arezzo | 1,182.84 mi (1,903.59 km) |
| Donegal to Argelato | 1,108.78 mi (1,784.41 km) |
| Donegal to Argenta | 1,123.55 mi (1,808.18 km) |
| Donegal to Ariano Irpino | 1,411.07 mi (2,270.90 km) |
| Donegal to Ariccia | 1,300.37 mi (2,092.74 km) |
| Donegal to Arluno | 980.94 mi (1,578.67 km) |
| Donegal to Arona | 955.64 mi (1,537.96 km) |
| Donegal to Artena | 1,307.71 mi (2,104.56 km) |
| Donegal to Arzachena | 1,232.64 mi (1,983.75 km) |
| Donegal to Arzano | 1,395.87 mi (2,246.43 km) |
| Donegal to Arzignano | 1,062.58 mi (1,710.05 km) |
| Donegal to Ascoli Piceno | 1,272.09 mi (2,047.23 km) |
