| Boise to Cognac | 5,125.51 mi (8,248.71 km) |
| Boise to Cogolin | 5,473.22 mi (8,808.29 km) |
| Boise to Colmar | 5,236.41 mi (8,427.19 km) |
| Boise to Colombes | 5,041.44 mi (8,113.42 km) |
| Boise to Colomiers | 5,287.21 mi (8,508.95 km) |
| Boise to Combs-la-Ville | 5,063.85 mi (8,149.47 km) |
| Boise to Comines | 4,969.04 mi (7,996.90 km) |
| Boise to Compiegne | 5,033.19 mi (8,100.14 km) |
| Boise to Concarneau | 4,899.30 mi (7,884.66 km) |
| Boise to Conde-sur-l'Escaut | 5,002.11 mi (8,050.12 km) |
| Boise to Conflans-Sainte-Honorine | 5,032.89 mi (8,099.66 km) |
| Boise to Corbas | 5,292.95 mi (8,518.18 km) |
| Boise to Corbeil-Essonnes | 5,064.39 mi (8,150.34 km) |
| Boise to Cormeilles-en-Parisis | 5,037.31 mi (8,106.77 km) |
| Boise to Cosne sur Loire | 5,140.39 mi (8,272.65 km) |
