| Duffel to Corinth (Mississippi) | 4,508.69 mi (7,256.03 km) |
| Duffel to Corinth (Texas) | 4,929.32 mi (7,932.97 km) |
| Duffel to Cornelius (North Carolina) | 4,179.09 mi (6,725.60 km) |
| Duffel to Cornelius (Oregon) | 5,066.05 mi (8,153.02 km) |
| Duffel to Corning (New York) | 3,717.93 mi (5,983.42 km) |
| Duffel to Corona (California) | 5,595.61 mi (9,005.26 km) |
| Duffel to Coronado (California) | 5,652.63 mi (9,097.03 km) |
| Duffel to Corpus Christi (Texas) | 5,228.29 mi (8,414.12 km) |
| Duffel to Corsicana (Texas) | 4,962.36 mi (7,986.14 km) |
| Duffel to Cortland (New York) | 3,663.42 mi (5,895.71 km) |
| Duffel to Corvallis (Oregon) | 5,127.88 mi (8,252.53 km) |
| Duffel to Coshocton (Ohio) | 3,991.39 mi (6,423.52 km) |
| Duffel to Costa Mesa (California) | 5,617.73 mi (9,040.86 km) |
| Duffel to Coto de Caza (California) | 5,611.73 mi (9,031.21 km) |
| Duffel to Cottage Grove (Minnesota) | 4,187.44 mi (6,739.03 km) |
