| Grand Forks to Collegno | 4,564.34 mi (7,345.60 km) |
| Grand Forks to Cologno al Serio | 4,612.26 mi (7,422.71 km) |
| Grand Forks to Cologno Monzese | 4,600.69 mi (7,404.09 km) |
| Grand Forks to Colorno | 4,667.65 mi (7,511.85 km) |
| Grand Forks to Comacchio | 4,739.86 mi (7,628.07 km) |
| Grand Forks to Comiso | 5,225.27 mi (8,409.26 km) |
| Grand Forks to Como | 4,580.31 mi (7,371.30 km) |
| Grand Forks to Concordia Sagittaria | 4,707.79 mi (7,576.46 km) |
| Grand Forks to Concorezzo | 4,599.63 mi (7,402.39 km) |
| Grand Forks to Conegliano | 4,683.60 mi (7,537.53 km) |
| Grand Forks to Conselice | 4,737.43 mi (7,624.16 km) |
| Grand Forks to Conselve | 4,702.35 mi (7,567.70 km) |
| Grand Forks to Conversano | 5,098.44 mi (8,205.15 km) |
| Grand Forks to Copertino | 5,166.87 mi (8,315.27 km) |
| Grand Forks to Copparo | 4,718.06 mi (7,592.98 km) |
