| Iona to Collegno | 4,923.61 mi (7,923.79 km) |
| Iona to Cologno al Serio | 5,009.12 mi (8,061.40 km) |
| Iona to Cologno Monzese | 4,991.27 mi (8,032.68 km) |
| Iona to Colorno | 5,056.04 mi (8,136.90 km) |
| Iona to Comacchio | 5,144.02 mi (8,278.50 km) |
| Iona to Comiso | 5,475.05 mi (8,811.24 km) |
| Iona to Como | 4,975.91 mi (8,007.95 km) |
| Iona to Concordia Sagittaria | 5,146.21 mi (8,282.02 km) |
| Iona to Concorezzo | 4,992.44 mi (8,034.56 km) |
| Iona to Conegliano | 5,118.44 mi (8,237.33 km) |
| Iona to Conselice | 5,132.81 mi (8,260.46 km) |
| Iona to Conselve | 5,115.89 mi (8,233.23 km) |
| Iona to Conversano | 5,477.32 mi (8,814.89 km) |
| Iona to Copertino | 5,542.61 mi (8,919.98 km) |
| Iona to Copparo | 5,122.93 mi (8,244.56 km) |
