| Ionia to Cabestany | 4,232.98 mi (6,812.33 km) |
| Ionia to Cabries | 4,305.80 mi (6,929.51 km) |
| Ionia to Cachan | 3,985.10 mi (6,413.40 km) |
| Ionia to Caen | 3,865.14 mi (6,220.34 km) |
| Ionia to Cagnes-sur-Mer | 4,369.89 mi (7,032.66 km) |
| Ionia to Cahors | 4,103.71 mi (6,604.29 km) |
| Ionia to Calais | 3,893.53 mi (6,266.04 km) |
| Ionia to Caluire-et-Cuire | 4,193.89 mi (6,749.42 km) |
| Ionia to Cambrai | 3,972.39 mi (6,392.95 km) |
| Ionia to Canet-en-Roussillon | 4,234.76 mi (6,815.18 km) |
| Ionia to Cannes | 4,368.80 mi (7,030.90 km) |
| Ionia to Canteleu | 3,911.66 mi (6,295.21 km) |
| Ionia to Capbreton | 4,011.11 mi (6,455.26 km) |
| Ionia to Carcassonne | 4,187.86 mi (6,739.71 km) |
| Ionia to Carmaux | 4,148.43 mi (6,676.25 km) |
