| Waltham to Channelview (Texas) | 1,583.19 mi (2,547.90 km) |
| Waltham to Chantilly (Virginia) | 405.18 mi (652.08 km) |
| Waltham to Chaparral (New Mexico) | 2,045.15 mi (3,291.35 km) |
| Waltham to Chapel Hill (North Carolina) | 610.87 mi (983.10 km) |
| Waltham to Charleston (Illinois) | 904.82 mi (1,456.16 km) |
| Waltham to Charleston (South Carolina) | 814.83 mi (1,311.34 km) |
| Waltham to Charleston (West Virginia) | 613.47 mi (987.28 km) |
| Waltham to Charlotte (North Carolina) | 715.15 mi (1,150.92 km) |
| Waltham to Charlottesville (Virginia) | 485.95 mi (782.06 km) |
| Waltham to Chaska (Minnesota) | 1,127.91 mi (1,815.19 km) |
| Waltham to Chatham (Illinois) | 977.76 mi (1,573.56 km) |
| Waltham to Chattanooga (Tennessee) | 906.94 mi (1,459.58 km) |
| Waltham to Cheat Lake (West Virginia) | 486.49 mi (782.94 km) |
| Waltham to Chelsea (Alabama) | 1,044.50 mi (1,680.97 km) |
| Waltham to Chelsea (Massachusetts) | 10.72 mi (17.25 km) |
