| Duffel to Commerce City (Colorado) | 4,849.05 mi (7,803.79 km) |
| Duffel to Compton (California) | 5,614.17 mi (9,035.13 km) |
| Duffel to Comstock Park (Michigan) | 4,008.73 mi (6,451.42 km) |
| Duffel to Concord (California) | 5,484.79 mi (8,826.91 km) |
| Duffel to Concord (Missouri) | 4,402.25 mi (7,084.74 km) |
| Duffel to Concord (New Hampshire) | 3,452.83 mi (5,556.79 km) |
| Duffel to Concord (North Carolina) | 4,172.99 mi (6,715.77 km) |
| Duffel to Conneaut (Ohio) | 3,865.17 mi (6,220.40 km) |
| Duffel to Connersville (Indiana) | 4,147.57 mi (6,674.87 km) |
| Duffel to Conroe (Texas) | 5,017.14 mi (8,074.31 km) |
| Duffel to Converse (Texas) | 5,168.86 mi (8,318.48 km) |
| Duffel to Conway (Arkansas) | 4,655.10 mi (7,491.65 km) |
| Duffel to Conway (Florida) | 4,540.53 mi (7,307.27 km) |
| Duffel to Conway (South Carolina) | 4,182.57 mi (6,731.20 km) |
| Duffel to Conyers (Georgia) | 4,392.88 mi (7,069.66 km) |
