| Duffel to Crest Hill (Illinois) | 4,169.03 mi (6,709.41 km) |
| Duffel to Crestview (Florida) | 4,642.84 mi (7,471.94 km) |
| Duffel to Crestwood (Illinois) | 4,151.62 mi (6,681.39 km) |
| Duffel to Crestwood (Missouri) | 4,400.81 mi (7,082.41 km) |
| Duffel to Creve Coeur (Missouri) | 4,398.04 mi (7,077.97 km) |
| Duffel to Crofton (Maryland) | 3,843.40 mi (6,185.36 km) |
| Duffel to Crossville (Tennessee) | 4,321.92 mi (6,955.45 km) |
| Duffel to Crowley (Louisiana) | 4,901.46 mi (7,888.14 km) |
| Duffel to Crowley (Texas) | 4,969.99 mi (7,998.42 km) |
| Duffel to Crown Point (Indiana) | 4,147.87 mi (6,675.36 km) |
| Duffel to Crystal (Minnesota) | 4,191.83 mi (6,746.10 km) |
| Duffel to Crystal Lake (Illinois) | 4,145.76 mi (6,671.96 km) |
| Duffel to Cudahy (California) | 5,608.71 mi (9,026.35 km) |
| Duffel to Cudahy (Wisconsin) | 4,094.50 mi (6,589.46 km) |
| Duffel to Cullman (Alabama) | 4,481.19 mi (7,211.78 km) |
