| Ottawa to Chatteris | 3,993.88 mi (6,427.53 km) |
| Ottawa to Cheadle | 3,901.14 mi (6,278.28 km) |
| Ottawa to Cheadle Hulme | 3,881.82 mi (6,247.18 km) |
| Ottawa to Cheam | 4,019.14 mi (6,468.17 km) |
| Ottawa to Chellaston | 3,925.22 mi (6,317.04 km) |
| Ottawa to Chelmsford | 4,033.27 mi (6,490.92 km) |
| Ottawa to Chelsfield | 4,032.05 mi (6,488.97 km) |
| Ottawa to Cheltenham | 3,931.26 mi (6,326.76 km) |
| Ottawa to Chepstow | 3,915.91 mi (6,302.04 km) |
| Ottawa to Cherry Hinton | 4,007.10 mi (6,448.80 km) |
| Ottawa to Chertsey | 4,006.82 mi (6,448.36 km) |
| Ottawa to Chesham | 3,992.52 mi (6,425.34 km) |
| Ottawa to Cheshunt | 4,014.72 mi (6,461.06 km) |
| Ottawa to Chester | 3,861.21 mi (6,214.02 km) |
| Ottawa to Chester-le-Street | 3,860.65 mi (6,213.11 km) |
