| Boston to Carson (California) | 5,389.20 mi (8,673.07 km) |
| Boston to Carson City (Nevada) | 5,125.79 mi (8,249.17 km) |
| Boston to Carteret (New Jersey) | 3,449.12 mi (5,550.83 km) |
| Boston to Cartersville (Georgia) | 4,174.46 mi (6,718.15 km) |
| Boston to Carthage (Missouri) | 4,387.68 mi (7,061.28 km) |
| Boston to Cary (Illinois) | 3,912.01 mi (6,295.77 km) |
| Boston to Cary (North Carolina) | 3,857.21 mi (6,207.58 km) |
| Boston to Casa de Oro-Mount Helix (California) | 5,410.83 mi (8,707.89 km) |
| Boston to Casa Grande (Arizona) | 5,232.54 mi (8,420.97 km) |
| Boston to Casas Adobes (Arizona) | 5,239.08 mi (8,431.48 km) |
| Boston to Cascades (Virginia) | 3,645.05 mi (5,866.14 km) |
| Boston to Casper (Wyoming) | 4,507.07 mi (7,253.43 km) |
| Boston to Casselberry (Florida) | 4,313.40 mi (6,941.74 km) |
| Boston to Castaic (California) | 5,363.41 mi (8,631.58 km) |
| Boston to Castle Pines (Colorado) | 4,639.81 mi (7,467.06 km) |
