| Hartford to Collegno | 3,861.65 mi (6,214.73 km) |
| Hartford to Cologno al Serio | 3,936.81 mi (6,335.69 km) |
| Hartford to Cologno Monzese | 3,920.59 mi (6,309.58 km) |
| Hartford to Colorno | 3,987.45 mi (6,417.18 km) |
| Hartford to Comacchio | 4,072.24 mi (6,553.64 km) |
| Hartford to Comiso | 4,464.67 mi (7,185.20 km) |
| Hartford to Como | 3,903.29 mi (6,281.74 km) |
| Hartford to Concordia Sagittaria | 4,063.84 mi (6,540.11 km) |
| Hartford to Concorezzo | 3,921.07 mi (6,310.35 km) |
| Hartford to Conegliano | 4,036.59 mi (6,496.27 km) |
| Hartford to Conselice | 4,063.61 mi (6,539.74 km) |
| Hartford to Conselve | 4,040.57 mi (6,502.66 km) |
| Hartford to Conversano | 4,420.66 mi (7,114.37 km) |
| Hartford to Copertino | 4,488.34 mi (7,223.29 km) |
| Hartford to Copparo | 4,050.49 mi (6,518.63 km) |
