| Webster Groves to Collegno | 4,737.17 mi (7,623.74 km) |
| Webster Groves to Cologno al Serio | 4,802.95 mi (7,729.60 km) |
| Webster Groves to Cologno Monzese | 4,788.31 mi (7,706.05 km) |
| Webster Groves to Colorno | 4,855.95 mi (7,814.89 km) |
| Webster Groves to Comacchio | 4,936.88 mi (7,945.14 km) |
| Webster Groves to Comiso | 5,365.77 mi (8,635.37 km) |
| Webster Groves to Como | 4,769.66 mi (7,676.02 km) |
| Webster Groves to Concordia Sagittaria | 4,919.19 mi (7,916.67 km) |
| Webster Groves to Concorezzo | 4,788.22 mi (7,705.89 km) |
| Webster Groves to Conegliano | 4,892.84 mi (7,874.26 km) |
| Webster Groves to Conselice | 4,930.52 mi (7,934.90 km) |
| Webster Groves to Conselve | 4,902.61 mi (7,890.00 km) |
| Webster Groves to Conversano | 5,292.71 mi (8,517.80 km) |
| Webster Groves to Copertino | 5,361.32 mi (8,628.22 km) |
| Webster Groves to Copparo | 4,914.87 mi (7,909.72 km) |
