| Downers Grove to Cortona | 4,749.63 mi (7,643.80 km) |
| Downers Grove to Cosenza | 5,095.14 mi (8,199.84 km) |
| Downers Grove to Cossato | 4,503.90 mi (7,248.32 km) |
| Downers Grove to Costa Volpino | 4,568.97 mi (7,353.04 km) |
| Downers Grove to Creazzo | 4,634.85 mi (7,459.07 km) |
| Downers Grove to Crema | 4,571.64 mi (7,357.35 km) |
| Downers Grove to Cremona | 4,594.91 mi (7,394.79 km) |
| Downers Grove to Crevalcore | 4,655.90 mi (7,492.95 km) |
| Downers Grove to Crispiano | 5,075.03 mi (8,167.47 km) |
| Downers Grove to Crosia | 5,103.71 mi (8,213.63 km) |
| Downers Grove to Crotone | 5,139.85 mi (8,271.80 km) |
| Downers Grove to Cuneo | 4,526.57 mi (7,284.81 km) |
| Downers Grove to Cuorgne | 4,490.46 mi (7,226.70 km) |
| Downers Grove to Cusano Milanino | 4,544.59 mi (7,313.82 km) |
| Downers Grove to Cutro | 5,136.79 mi (8,266.86 km) |
