| Alpena to Cosham | 3,630.28 mi (5,842.38 km) |
| Alpena to Costessey | 3,657.04 mi (5,885.44 km) |
| Alpena to Cottingham | 3,561.55 mi (5,731.77 km) |
| Alpena to Coulsdon | 3,650.10 mi (5,874.27 km) |
| Alpena to Coventry | 3,563.45 mi (5,734.81 km) |
| Alpena to Cowdenbeath | 3,388.50 mi (5,453.26 km) |
| Alpena to Cowes | 3,623.96 mi (5,832.20 km) |
| Alpena to Cowley | 3,630.35 mi (5,842.48 km) |
| Alpena to Cowley | 3,595.89 mi (5,787.03 km) |
| Alpena to Cramlington | 3,480.24 mi (5,600.91 km) |
| Alpena to Cranleigh | 3,643.21 mi (5,863.18 km) |
| Alpena to Crawley | 3,655.21 mi (5,882.49 km) |
| Alpena to Crayford | 3,658.03 mi (5,887.03 km) |
| Alpena to Crewe | 3,507.46 mi (5,644.71 km) |
| Alpena to Crigglestone | 3,525.08 mi (5,673.06 km) |
