| Petersburg to Cortona | 4,499.09 mi (7,240.59 km) |
| Petersburg to Cosenza | 4,828.88 mi (7,771.34 km) |
| Petersburg to Cossato | 4,259.17 mi (6,854.47 km) |
| Petersburg to Costa Volpino | 4,334.99 mi (6,976.50 km) |
| Petersburg to Creazzo | 4,403.86 mi (7,087.33 km) |
| Petersburg to Crema | 4,331.28 mi (6,970.52 km) |
| Petersburg to Cremona | 4,353.72 mi (7,006.64 km) |
| Petersburg to Crevalcore | 4,415.47 mi (7,106.01 km) |
| Petersburg to Crispiano | 4,825.08 mi (7,765.21 km) |
| Petersburg to Crosia | 4,842.37 mi (7,793.04 km) |
| Petersburg to Crotone | 4,876.09 mi (7,847.31 km) |
| Petersburg to Cuneo | 4,267.39 mi (6,867.70 km) |
| Petersburg to Cuorgne | 4,241.81 mi (6,826.53 km) |
| Petersburg to Cusano Milanino | 4,303.95 mi (6,926.53 km) |
| Petersburg to Cutro | 4,871.91 mi (7,840.58 km) |
