| Donaueschingen to Cay | 1,297.67 mi (2,088.40 km) |
| Donaueschingen to Caybasi | 1,478.27 mi (2,379.04 km) |
| Donaueschingen to Caycuma | 1,236.50 mi (1,989.95 km) |
| Donaueschingen to Cayeli | 1,643.06 mi (2,644.26 km) |
| Donaueschingen to Cayiralan | 1,473.06 mi (2,370.65 km) |
| Donaueschingen to Cayirhan | 1,266.43 mi (2,038.11 km) |
| Donaueschingen to Cayirli | 1,654.46 mi (2,662.59 km) |
| Donaueschingen to Cayirova | 1,137.23 mi (1,830.20 km) |
| Donaueschingen to Caykara | 1,631.96 mi (2,626.38 km) |
| Donaueschingen to Cekerek | 1,438.17 mi (2,314.51 km) |
| Donaueschingen to Cekme | 1,120.81 mi (1,803.77 km) |
| Donaueschingen to Celtik | 1,313.06 mi (2,113.16 km) |
| Donaueschingen to Cerkes | 1,294.39 mi (2,083.12 km) |
| Donaueschingen to Cerkezkoy | 1,059.87 mi (1,705.70 km) |
| Donaueschingen to Cermik | 1,688.91 mi (2,718.03 km) |
