| Northolt to Cividale del Friuli | 730.31 mi (1,175.32 km) |
| Northolt to Civita Castellana | 876.32 mi (1,410.30 km) |
| Northolt to Civitanova Marche | 868.74 mi (1,398.10 km) |
| Northolt to Civitavecchia | 867.81 mi (1,396.60 km) |
| Northolt to Civitella in Val di Chiana | 794.35 mi (1,278.38 km) |
| Northolt to Clusone | 610.93 mi (983.20 km) |
| Northolt to Coccaglio | 627.34 mi (1,009.60 km) |
| Northolt to Codigoro | 737.19 mi (1,186.38 km) |
| Northolt to Codogno | 638.24 mi (1,027.14 km) |
| Northolt to Codroipo | 718.51 mi (1,156.33 km) |
| Northolt to Cogoleto | 645.96 mi (1,039.57 km) |
| Northolt to Colle di Val d'Elsa | 776.34 mi (1,249.40 km) |
| Northolt to Colle Salvetti | 745.06 mi (1,199.06 km) |
| Northolt to Collecchio | 676.03 mi (1,087.96 km) |
| Northolt to Colleferro | 926.14 mi (1,490.48 km) |
