| Dubuque to Cabestany | 4,487.26 mi (7,221.55 km) |
| Dubuque to Cabries | 4,555.63 mi (7,331.58 km) |
| Dubuque to Cachan | 4,225.08 mi (6,799.60 km) |
| Dubuque to Caen | 4,106.95 mi (6,609.49 km) |
| Dubuque to Cagnes-sur-Mer | 4,617.11 mi (7,430.51 km) |
| Dubuque to Cahors | 4,355.66 mi (7,009.76 km) |
| Dubuque to Calais | 4,127.87 mi (6,643.16 km) |
| Dubuque to Caluire-et-Cuire | 4,438.79 mi (7,143.55 km) |
| Dubuque to Cambrai | 4,207.46 mi (6,771.26 km) |
| Dubuque to Canet-en-Roussillon | 4,488.91 mi (7,224.20 km) |
| Dubuque to Cannes | 4,616.44 mi (7,429.44 km) |
| Dubuque to Canteleu | 4,151.22 mi (6,680.74 km) |
| Dubuque to Capbreton | 4,267.89 mi (6,868.51 km) |
| Dubuque to Carcassonne | 4,441.62 mi (7,148.10 km) |
| Dubuque to Carmaux | 4,400.52 mi (7,081.95 km) |
