| Security-Widefield to Collegno | 5,282.05 mi (8,500.64 km) |
| Security-Widefield to Cologno al Serio | 5,334.36 mi (8,584.83 km) |
| Security-Widefield to Cologno Monzese | 5,322.06 mi (8,565.03 km) |
| Security-Widefield to Colorno | 5,389.39 mi (8,673.38 km) |
| Security-Widefield to Comacchio | 5,463.75 mi (8,793.06 km) |
| Security-Widefield to Comiso | 5,936.71 mi (9,554.21 km) |
| Security-Widefield to Como | 5,302.01 mi (8,532.76 km) |
| Security-Widefield to Concordia Sagittaria | 5,434.54 mi (8,746.04 km) |
| Security-Widefield to Concorezzo | 5,321.22 mi (8,563.67 km) |
| Security-Widefield to Conegliano | 5,409.85 mi (8,706.31 km) |
| Security-Widefield to Conselice | 5,460.46 mi (8,787.76 km) |
| Security-Widefield to Conselve | 5,426.81 mi (8,733.61 km) |
| Security-Widefield to Conversano | 5,822.78 mi (9,370.86 km) |
| Security-Widefield to Copertino | 5,891.44 mi (9,481.35 km) |
| Security-Widefield to Copparo | 5,441.84 mi (8,757.79 km) |
