| Didcot to Commerce City (Colorado) | 4,631.30 mi (7,453.36 km) |
| Didcot to Compton (California) | 5,408.66 mi (8,704.40 km) |
| Didcot to Comstock Park (Michigan) | 3,774.04 mi (6,073.74 km) |
| Didcot to Concord (California) | 5,292.22 mi (8,517.01 km) |
| Didcot to Concord (Missouri) | 4,166.04 mi (6,704.60 km) |
| Didcot to Concord (New Hampshire) | 3,208.08 mi (5,162.91 km) |
| Didcot to Concord (North Carolina) | 3,926.64 mi (6,319.32 km) |
| Didcot to Conneaut (Ohio) | 3,624.85 mi (5,833.63 km) |
| Didcot to Connersville (Indiana) | 3,908.18 mi (6,289.61 km) |
| Didcot to Conroe (Texas) | 4,777.22 mi (7,688.19 km) |
| Didcot to Converse (Texas) | 4,930.80 mi (7,935.36 km) |
| Didcot to Conway (Arkansas) | 4,417.02 mi (7,108.51 km) |
| Didcot to Conway (Florida) | 4,290.97 mi (6,905.64 km) |
| Didcot to Conway (South Carolina) | 3,934.48 mi (6,331.94 km) |
| Didcot to Conyers (Georgia) | 4,147.22 mi (6,674.31 km) |
