| Frankfort to Cortona | 4,779.25 mi (7,691.46 km) |
| Frankfort to Cosenza | 5,118.07 mi (8,236.74 km) |
| Frankfort to Cossato | 4,535.51 mi (7,299.20 km) |
| Frankfort to Costa Volpino | 4,606.06 mi (7,412.73 km) |
| Frankfort to Creazzo | 4,673.62 mi (7,521.47 km) |
| Frankfort to Crema | 4,605.63 mi (7,412.05 km) |
| Frankfort to Cremona | 4,628.58 mi (7,448.98 km) |
| Frankfort to Crevalcore | 4,690.16 mi (7,548.08 km) |
| Frankfort to Crispiano | 5,106.00 mi (8,217.32 km) |
| Frankfort to Crosia | 5,129.12 mi (8,254.52 km) |
| Frankfort to Crotone | 5,164.17 mi (8,310.92 km) |
| Frankfort to Cuneo | 4,551.15 mi (7,324.37 km) |
| Frankfort to Cuorgne | 4,520.10 mi (7,274.40 km) |
| Frankfort to Cusano Milanino | 4,578.35 mi (7,368.14 km) |
| Frankfort to Cutro | 5,160.53 mi (8,305.08 km) |
