| Northolt to Collegno | 576.36 mi (927.57 km) |
| Northolt to Cologno al Serio | 616.88 mi (992.77 km) |
| Northolt to Cologno Monzese | 605.48 mi (974.42 km) |
| Northolt to Colorno | 672.28 mi (1,081.93 km) |
| Northolt to Comacchio | 745.90 mi (1,200.42 km) |
| Northolt to Comiso | 1,246.24 mi (2,005.62 km) |
| Northolt to Como | 584.98 mi (941.43 km) |
| Northolt to Concordia Sagittaria | 721.89 mi (1,161.78 km) |
| Northolt to Concorezzo | 604.32 mi (972.56 km) |
| Northolt to Conegliano | 695.92 mi (1,119.97 km) |
| Northolt to Conselice | 742.50 mi (1,194.94 km) |
| Northolt to Conselve | 709.43 mi (1,141.72 km) |
| Northolt to Conversano | 1,104.96 mi (1,778.26 km) |
| Northolt to Copertino | 1,173.68 mi (1,888.86 km) |
| Northolt to Copparo | 723.95 mi (1,165.09 km) |
