| Boston to Castle Rock (Colorado) | 4,643.86 mi (7,473.56 km) |
| Boston to Castro Valley (California) | 5,276.97 mi (8,492.47 km) |
| Boston to Catalina Foothills (Arizona) | 5,236.88 mi (8,427.94 km) |
| Boston to Cataño (Puerto Rico) | 4,219.55 mi (6,790.71 km) |
| Boston to Cathedral City (California) | 5,332.95 mi (8,582.55 km) |
| Boston to Catonsville (Maryland) | 3,609.34 mi (5,808.67 km) |
| Boston to Cave Spring (Virginia) | 3,834.94 mi (6,171.75 km) |
| Boston to Cayce (South Carolina) | 4,036.03 mi (6,495.37 km) |
| Boston to Cayey (Puerto Rico) | 4,237.67 mi (6,819.86 km) |
| Boston to Cedar City (Utah) | 5,006.96 mi (8,057.92 km) |
| Boston to Cedar Falls (Iowa) | 4,050.16 mi (6,518.10 km) |
| Boston to Cedar Hill (Texas) | 4,723.87 mi (7,602.33 km) |
| Boston to Cedar Lake (Indiana) | 3,922.38 mi (6,312.46 km) |
| Boston to Cedar Mill (Oregon) | 4,839.09 mi (7,787.77 km) |
| Boston to Cedar Park (Texas) | 4,866.35 mi (7,831.64 km) |
