| Storm Lake to Collegno | 4,739.86 mi (7,628.07 km) |
| Storm Lake to Cologno al Serio | 4,796.41 mi (7,719.08 km) |
| Storm Lake to Cologno Monzese | 4,783.35 mi (7,698.06 km) |
| Storm Lake to Colorno | 4,850.93 mi (7,806.82 km) |
| Storm Lake to Comacchio | 4,927.55 mi (7,930.13 km) |
| Storm Lake to Comiso | 5,388.41 mi (8,671.81 km) |
| Storm Lake to Como | 4,763.69 mi (7,666.41 km) |
| Storm Lake to Concordia Sagittaria | 4,902.04 mi (7,889.08 km) |
| Storm Lake to Concorezzo | 4,782.74 mi (7,697.07 km) |
| Storm Lake to Conegliano | 4,876.74 mi (7,848.36 km) |
| Storm Lake to Conselice | 4,923.27 mi (7,923.24 km) |
| Storm Lake to Conselve | 4,891.39 mi (7,871.93 km) |
| Storm Lake to Conversano | 5,286.40 mi (8,507.63 km) |
| Storm Lake to Copertino | 5,355.19 mi (8,618.35 km) |
| Storm Lake to Copparo | 4,905.56 mi (7,894.73 km) |
