| Illingen to Castle Rock (Colorado) | 5,038.10 mi (8,108.04 km) |
| Illingen to Castro Valley (California) | 5,665.22 mi (9,117.29 km) |
| Illingen to Catalina Foothills (Arizona) | 5,631.10 mi (9,062.37 km) |
| Illingen to Cataño (Puerto Rico) | 4,508.55 mi (7,255.81 km) |
| Illingen to Cathedral City (California) | 5,726.24 mi (9,215.49 km) |
| Illingen to Catonsville (Maryland) | 3,984.30 mi (6,412.11 km) |
| Illingen to Cave Spring (Virginia) | 4,210.42 mi (6,776.01 km) |
| Illingen to Cayce (South Carolina) | 4,406.92 mi (7,092.25 km) |
| Illingen to Cayey (Puerto Rico) | 4,525.62 mi (7,283.29 km) |
| Illingen to Cedar City (Utah) | 5,400.29 mi (8,690.93 km) |
| Illingen to Cedar Falls (Iowa) | 4,442.47 mi (7,149.46 km) |
| Illingen to Cedar Hill (Texas) | 5,111.89 mi (8,226.79 km) |
| Illingen to Cedar Lake (Indiana) | 4,311.08 mi (6,938.01 km) |
| Illingen to Cedar Mill (Oregon) | 5,220.42 mi (8,401.45 km) |
| Illingen to Cedar Park (Texas) | 5,253.34 mi (8,454.43 km) |
