| Sligo to Cologno al Serio | 1,002.18 mi (1,612.86 km) |
| Sligo to Cologno Monzese | 990.02 mi (1,593.29 km) |
| Sligo to Colorno | 1,057.26 mi (1,701.49 km) |
| Sligo to Comacchio | 1,132.20 mi (1,822.11 km) |
| Sligo to Comiso | 1,621.24 mi (2,609.14 km) |
| Sligo to Como | 969.87 mi (1,560.86 km) |
| Sligo to Concordia Sagittaria | 1,107.80 mi (1,782.83 km) |
| Sligo to Concorezzo | 989.11 mi (1,591.82 km) |
| Sligo to Conegliano | 1,082.04 mi (1,741.38 km) |
| Sligo to Conselice | 1,128.42 mi (1,816.01 km) |
| Sligo to Conselve | 1,095.89 mi (1,763.66 km) |
| Sligo to Conversano | 1,491.21 mi (2,399.87 km) |
| Sligo to Copertino | 1,559.97 mi (2,510.52 km) |
| Sligo to Copparo | 1,110.23 mi (1,786.74 km) |
| Sligo to Corato | 1,456.41 mi (2,343.87 km) |
