| Southborough to Arcore | 563.37 mi (906.66 km) |
| Southborough to Ardea | 879.45 mi (1,415.34 km) |
| Southborough to Arenzano | 607.91 mi (978.33 km) |
| Southborough to Arese | 559.22 mi (899.98 km) |
| Southborough to Arezzo | 759.07 mi (1,221.61 km) |
| Southborough to Argelato | 684.87 mi (1,102.19 km) |
| Southborough to Argenta | 699.82 mi (1,126.26 km) |
| Southborough to Ariano Irpino | 987.16 mi (1,588.69 km) |
| Southborough to Ariccia | 877.64 mi (1,412.43 km) |
| Southborough to Arluno | 557.39 mi (897.03 km) |
| Southborough to Arona | 532.12 mi (856.36 km) |
| Southborough to Artena | 884.68 mi (1,423.76 km) |
| Southborough to Arzachena | 820.43 mi (1,320.35 km) |
| Southborough to Arzano | 972.43 mi (1,564.97 km) |
| Southborough to Arzignano | 639.52 mi (1,029.21 km) |
