| Dayton to Cortona | 4,682.54 mi (7,535.81 km) |
| Dayton to Cosenza | 5,022.98 mi (8,083.70 km) |
| Dayton to Cossato | 4,438.24 mi (7,142.66 km) |
| Dayton to Costa Volpino | 4,507.69 mi (7,254.43 km) |
| Dayton to Creazzo | 4,574.96 mi (7,362.68 km) |
| Dayton to Crema | 4,507.91 mi (7,254.78 km) |
| Dayton to Cremona | 4,530.93 mi (7,291.83 km) |
| Dayton to Crevalcore | 4,592.42 mi (7,390.79 km) |
| Dayton to Crispiano | 5,009.17 mi (8,061.48 km) |
| Dayton to Crosia | 5,033.49 mi (8,100.63 km) |
| Dayton to Crotone | 5,068.80 mi (8,157.44 km) |
| Dayton to Cuneo | 4,455.38 mi (7,170.25 km) |
| Dayton to Cuorgne | 4,423.24 mi (7,118.51 km) |
| Dayton to Cusano Milanino | 4,480.65 mi (7,210.92 km) |
| Dayton to Cutro | 5,065.29 mi (8,151.79 km) |
