| Flagstaff to Collegno | 5,716.11 mi (9,199.19 km) |
| Flagstaff to Cologno al Serio | 5,765.03 mi (9,277.91 km) |
| Flagstaff to Cologno Monzese | 5,753.33 mi (9,259.10 km) |
| Flagstaff to Colorno | 5,820.36 mi (9,366.97 km) |
| Flagstaff to Comacchio | 5,892.83 mi (9,483.60 km) |
| Flagstaff to Comiso | 6,374.92 mi (10,259.44 km) |
| Flagstaff to Como | 5,733.01 mi (9,226.39 km) |
| Flagstaff to Concordia Sagittaria | 5,860.75 mi (9,431.97 km) |
| Flagstaff to Concorezzo | 5,752.31 mi (9,257.45 km) |
| Flagstaff to Conegliano | 5,836.59 mi (9,393.09 km) |
| Flagstaff to Conselice | 5,890.33 mi (9,479.57 km) |
| Flagstaff to Conselve | 5,855.35 mi (9,423.27 km) |
| Flagstaff to Conversano | 6,251.45 mi (10,060.74 km) |
| Flagstaff to Copertino | 6,319.88 mi (10,170.87 km) |
| Flagstaff to Copparo | 5,871.02 mi (9,448.49 km) |
