| Dorchester to Archdale (North Carolina) | 3,842.85 mi (6,184.47 km) |
| Dorchester to Arden-Arcade (California) | 5,245.04 mi (8,441.07 km) |
| Dorchester to Ardmore (Oklahoma) | 4,622.98 mi (7,439.96 km) |
| Dorchester to Ardmore (Pennsylvania) | 3,466.41 mi (5,578.65 km) |
| Dorchester to Arecibo (Puerto Rico) | 4,120.89 mi (6,631.93 km) |
| Dorchester to Arkadelphia (Arkansas) | 4,465.76 mi (7,186.94 km) |
| Dorchester to Arkansas City (Kansas) | 4,476.01 mi (7,203.44 km) |
| Dorchester to Arlington (Tennessee) | 4,273.36 mi (6,877.32 km) |
| Dorchester to Arlington (Texas) | 4,698.38 mi (7,561.31 km) |
| Dorchester to Arlington (Virginia) | 3,590.21 mi (5,777.89 km) |
| Dorchester to Arlington (Washington) | 4,728.78 mi (7,610.23 km) |
| Dorchester to Arlington Heights (Illinois) | 3,887.50 mi (6,256.33 km) |
| Dorchester to Arnold (Maryland) | 3,557.84 mi (5,725.79 km) |
| Dorchester to Arnold (Missouri) | 4,150.40 mi (6,679.43 km) |
| Dorchester to Arroyo Grande (California) | 5,417.15 mi (8,718.06 km) |
