| Mattoon to Cernavoda | 5,425.70 mi (8,731.82 km) |
| Mattoon to Chitila | 5,345.26 mi (8,602.36 km) |
| Mattoon to Cisnadie | 5,223.21 mi (8,405.94 km) |
| Mattoon to Cluj-Napoca | 5,154.13 mi (8,294.77 km) |
| Mattoon to Codlea | 5,269.60 mi (8,480.61 km) |
| Mattoon to Comanesti | 5,269.61 mi (8,480.62 km) |
| Mattoon to Comarnic | 5,297.52 mi (8,525.54 km) |
| Mattoon to Constanta | 5,454.99 mi (8,778.96 km) |
| Mattoon to Corabia | 5,327.04 mi (8,573.04 km) |
| Mattoon to Costesti | 5,298.28 mi (8,526.75 km) |
| Mattoon to Covasna | 5,288.23 mi (8,510.59 km) |
| Mattoon to Craiova | 5,275.74 mi (8,490.49 km) |
| Mattoon to Cristuru Secuiesc | 5,227.18 mi (8,412.33 km) |
| Mattoon to Cugir | 5,189.08 mi (8,351.02 km) |
| Mattoon to Cumpana | 5,454.95 mi (8,778.90 km) |
