| Alpena to Cavdir | 5,395.01 mi (8,682.44 km) |
| Alpena to Cay | 5,368.52 mi (8,639.80 km) |
| Alpena to Caybasi | 5,444.99 mi (8,762.87 km) |
| Alpena to Caycuma | 5,257.39 mi (8,460.95 km) |
| Alpena to Cayeli | 5,556.46 mi (8,942.26 km) |
| Alpena to Cayiralan | 5,490.37 mi (8,835.90 km) |
| Alpena to Cayirhan | 5,313.05 mi (8,550.53 km) |
| Alpena to Cayirli | 5,606.25 mi (9,022.39 km) |
| Alpena to Cayirova | 5,194.86 mi (8,360.32 km) |
| Alpena to Caykara | 5,560.45 mi (8,948.68 km) |
| Alpena to Cekerek | 5,444.10 mi (8,761.44 km) |
| Alpena to Cekme | 5,177.23 mi (8,331.95 km) |
| Alpena to Celtik | 5,372.95 mi (8,646.92 km) |
| Alpena to Cerkes | 5,317.16 mi (8,557.14 km) |
| Alpena to Cerkezkoy | 5,123.09 mi (8,244.82 km) |
