| Frankfort to Collegno | 4,527.75 mi (7,286.70 km) |
| Frankfort to Cologno al Serio | 4,598.53 mi (7,400.62 km) |
| Frankfort to Cologno Monzese | 4,583.05 mi (7,375.70 km) |
| Frankfort to Colorno | 4,650.39 mi (7,484.08 km) |
| Frankfort to Comacchio | 4,733.45 mi (7,617.75 km) |
| Frankfort to Comiso | 5,142.70 mi (8,276.38 km) |
| Frankfort to Como | 4,565.06 mi (7,346.76 km) |
| Frankfort to Concordia Sagittaria | 4,720.45 mi (7,596.83 km) |
| Frankfort to Concorezzo | 4,583.25 mi (7,376.03 km) |
| Frankfort to Conegliano | 4,693.60 mi (7,553.62 km) |
| Frankfort to Conselice | 4,725.90 mi (7,605.60 km) |
| Frankfort to Conselve | 4,700.46 mi (7,564.65 km) |
| Frankfort to Conversano | 5,085.94 mi (8,185.03 km) |
| Frankfort to Copertino | 5,154.15 mi (8,294.80 km) |
| Frankfort to Copparo | 4,711.54 mi (7,582.49 km) |
