| Southborough to Allouez (Wisconsin) | 3,870.09 mi (6,228.30 km) |
| Southborough to Aloha (Oregon) | 4,949.19 mi (7,964.95 km) |
| Southborough to Alpena (Michigan) | 3,670.77 mi (5,907.53 km) |
| Southborough to Alpharetta (Georgia) | 4,210.26 mi (6,775.77 km) |
| Southborough to Alpine (California) | 5,489.70 mi (8,834.82 km) |
| Southborough to Alpine (Utah) | 4,901.99 mi (7,888.99 km) |
| Southborough to Alsip (Illinois) | 3,987.51 mi (6,417.27 km) |
| Southborough to Altadena (California) | 5,457.62 mi (8,783.19 km) |
| Southborough to Altamont (Oregon) | 5,107.11 mi (8,219.10 km) |
| Southborough to Altamonte Springs (Florida) | 4,355.50 mi (7,009.49 km) |
| Southborough to Alton (Illinois) | 4,211.09 mi (6,777.10 km) |
| Southborough to Alton (Texas) | 5,172.54 mi (8,324.39 km) |
| Southborough to Altoona (Iowa) | 4,204.66 mi (6,766.74 km) |
| Southborough to Altoona (Pennsylvania) | 3,672.67 mi (5,910.58 km) |
| Southborough to Altus (Oklahoma) | 4,772.61 mi (7,680.78 km) |
