| Waltham to Arcata (California) | 2,685.99 mi (4,322.69 km) |
| Waltham to Archdale (North Carolina) | 646.62 mi (1,040.63 km) |
| Waltham to Arden-Arcade (California) | 2,609.29 mi (4,199.24 km) |
| Waltham to Ardmore (Oklahoma) | 1,506.00 mi (2,423.67 km) |
| Waltham to Ardmore (Pennsylvania) | 267.45 mi (430.41 km) |
| Waltham to Arecibo (Puerto Rico) | 1,675.06 mi (2,695.75 km) |
| Waltham to Arkadelphia (Arkansas) | 1,309.69 mi (2,107.75 km) |
| Waltham to Arkansas City (Kansas) | 1,413.00 mi (2,274.01 km) |
| Waltham to Arlington (Tennessee) | 1,104.22 mi (1,777.07 km) |
| Waltham to Arlington (Texas) | 1,559.66 mi (2,510.03 km) |
| Waltham to Arlington (Virginia) | 391.24 mi (629.64 km) |
| Waltham to Arlington (Washington) | 2,460.54 mi (3,959.86 km) |
| Waltham to Arlington Heights (Illinois) | 855.13 mi (1,376.20 km) |
| Waltham to Arnold (Maryland) | 359.26 mi (578.17 km) |
| Waltham to Arnold (Missouri) | 1,040.47 mi (1,674.48 km) |
