| Redding to Cortona | 5,983.85 mi (9,630.08 km) |
| Redding to Cosenza | 6,333.60 mi (10,192.95 km) |
| Redding to Cossato | 5,746.92 mi (9,248.77 km) |
| Redding to Costa Volpino | 5,785.37 mi (9,310.66 km) |
| Redding to Creazzo | 5,839.65 mi (9,398.01 km) |
| Redding to Crema | 5,800.44 mi (9,334.91 km) |
| Redding to Cremona | 5,823.37 mi (9,371.80 km) |
| Redding to Crevalcore | 5,877.75 mi (9,459.32 km) |
| Redding to Crispiano | 6,281.59 mi (10,109.24 km) |
| Redding to Crosia | 6,331.43 mi (10,189.45 km) |
| Redding to Crotone | 6,369.71 mi (10,251.05 km) |
| Redding to Cuneo | 5,795.71 mi (9,327.30 km) |
| Redding to Cuorgne | 5,742.23 mi (9,241.23 km) |
| Redding to Cusano Milanino | 5,776.23 mi (9,295.94 km) |
| Redding to Cutro | 6,369.18 mi (10,250.20 km) |
