| Duncan to Brezovica | 5,459.24 mi (8,785.79 km) |
| Duncan to Cankova | 5,487.32 mi (8,830.99 km) |
| Duncan to Celje | 5,481.28 mi (8,821.27 km) |
| Duncan to Cerklje na Gorenjskem | 5,451.81 mi (8,773.85 km) |
| Duncan to Cerknica | 5,466.78 mi (8,797.94 km) |
| Duncan to Cerkno | 5,438.67 mi (8,752.70 km) |
| Duncan to Cerkvenjak | 5,491.40 mi (8,837.56 km) |
| Duncan to Cirkulane | 5,503.15 mi (8,856.47 km) |
| Duncan to Crensovci | 5,503.76 mi (8,857.45 km) |
| Duncan to Crna na Koroskem | 5,455.60 mi (8,779.94 km) |
| Duncan to Crnomelj | 5,507.66 mi (8,863.72 km) |
| Duncan to Destrnik | 5,492.39 mi (8,839.14 km) |
| Duncan to Divaca | 5,457.21 mi (8,782.53 km) |
| Duncan to Dobje | 5,490.32 mi (8,835.81 km) |
| Duncan to Dobrna | 5,475.37 mi (8,811.76 km) |
