| Wilmette to Cortona | 4,725.76 mi (7,605.38 km) |
| Wilmette to Cosenza | 5,071.38 mi (8,161.60 km) |
| Wilmette to Cossato | 4,480.00 mi (7,209.87 km) |
| Wilmette to Costa Volpino | 4,544.97 mi (7,314.43 km) |
| Wilmette to Creazzo | 4,610.82 mi (7,420.40 km) |
| Wilmette to Crema | 4,547.70 mi (7,318.82 km) |
| Wilmette to Cremona | 4,570.97 mi (7,356.27 km) |
| Wilmette to Crevalcore | 4,631.95 mi (7,454.40 km) |
| Wilmette to Crispiano | 5,051.11 mi (8,128.98 km) |
| Wilmette to Crosia | 5,079.90 mi (8,175.30 km) |
| Wilmette to Crotone | 5,116.06 mi (8,233.50 km) |
| Wilmette to Cuneo | 4,502.81 mi (7,246.57 km) |
| Wilmette to Cuorgne | 4,466.61 mi (7,188.31 km) |
| Wilmette to Cusano Milanino | 4,520.66 mi (7,275.30 km) |
| Wilmette to Cutro | 5,113.01 mi (8,228.59 km) |
