| Opelika to Cosham | 4,276.19 mi (6,881.86 km) |
| Opelika to Costessey | 4,328.75 mi (6,966.45 km) |
| Opelika to Cottingham | 4,240.65 mi (6,824.66 km) |
| Opelika to Coulsdon | 4,303.92 mi (6,926.49 km) |
| Opelika to Coventry | 4,225.15 mi (6,799.73 km) |
| Opelika to Cowdenbeath | 4,085.45 mi (6,574.90 km) |
| Opelika to Cowes | 4,268.26 mi (6,869.10 km) |
| Opelika to Cowley | 4,285.40 mi (6,896.69 km) |
| Opelika to Cowley | 4,251.09 mi (6,841.46 km) |
| Opelika to Cramlington | 4,170.12 mi (6,711.16 km) |
| Opelika to Cranleigh | 4,294.04 mi (6,910.60 km) |
| Opelika to Crawley | 4,306.61 mi (6,930.82 km) |
| Opelika to Crayford | 4,314.15 mi (6,942.95 km) |
| Opelika to Crewe | 4,174.26 mi (6,717.82 km) |
| Opelika to Crigglestone | 4,200.00 mi (6,759.25 km) |
