| Didcot to Carlsbad (New Mexico) | 5,003.76 mi (8,052.78 km) |
| Didcot to Carmel (Indiana) | 3,933.33 mi (6,330.08 km) |
| Didcot to Carmichael (California) | 5,234.01 mi (8,423.33 km) |
| Didcot to Carney (Maryland) | 3,573.81 mi (5,751.49 km) |
| Didcot to Carnot-Moon (Pennsylvania) | 3,673.51 mi (5,911.94 km) |
| Didcot to Carol Stream (Illinois) | 3,919.22 mi (6,307.38 km) |
| Didcot to Carolina (Puerto Rico) | 4,150.41 mi (6,679.43 km) |
| Didcot to Carolina Forest (South Carolina) | 3,932.65 mi (6,328.98 km) |
| Didcot to Carpentersville (Illinois) | 3,915.80 mi (6,301.87 km) |
| Didcot to Carpinteria (California) | 5,421.16 mi (8,724.51 km) |
| Didcot to Carrboro (North Carolina) | 3,837.88 mi (6,176.47 km) |
| Didcot to Carroll (Iowa) | 4,163.82 mi (6,701.02 km) |
| Didcot to Carrollton (Georgia) | 4,195.64 mi (6,752.23 km) |
| Didcot to Carrollton (Texas) | 4,695.08 mi (7,555.99 km) |
| Didcot to Carrollwood (Florida) | 4,362.61 mi (7,020.94 km) |
