| McDonough to Carlsbad (California) | 1,905.68 mi (3,066.90 km) |
| McDonough to Carlsbad (New Mexico) | 1,165.50 mi (1,875.68 km) |
| McDonough to Carmel (Indiana) | 464.17 mi (747.01 km) |
| McDonough to Carmichael (California) | 2,093.27 mi (3,368.79 km) |
| McDonough to Carney (Maryland) | 590.90 mi (950.96 km) |
| McDonough to Carnot-Moon (Pennsylvania) | 534.96 mi (860.93 km) |
| McDonough to Carol Stream (Illinois) | 624.73 mi (1,005.40 km) |
| McDonough to Carolina (Puerto Rico) | 1,529.54 mi (2,461.56 km) |
| McDonough to Carolina Forest (South Carolina) | 302.21 mi (486.36 km) |
| McDonough to Carpentersville (Illinois) | 640.88 mi (1,031.40 km) |
| McDonough to Carpinteria (California) | 2,018.24 mi (3,248.04 km) |
| McDonough to Carrboro (North Carolina) | 334.96 mi (539.07 km) |
| McDonough to Carroll (Iowa) | 834.23 mi (1,342.56 km) |
| McDonough to Carrollton (Georgia) | 54.66 mi (87.96 km) |
| McDonough to Carrollton (Texas) | 737.18 mi (1,186.38 km) |
