| Illingen to Cookeville (Tennessee) | 4,484.14 mi (7,216.52 km) |
| Illingen to Coolidge (Arizona) | 5,617.20 mi (9,040.01 km) |
| Illingen to Coon Rapids (Minnesota) | 4,344.91 mi (6,992.45 km) |
| Illingen to Cooper City (Florida) | 4,758.66 mi (7,658.32 km) |
| Illingen to Coos Bay (Oregon) | 5,384.64 mi (8,665.74 km) |
| Illingen to Copiague (New York) | 3,785.38 mi (6,091.97 km) |
| Illingen to Coppell (Texas) | 5,093.15 mi (8,196.63 km) |
| Illingen to Copperas Cove (Texas) | 5,224.97 mi (8,408.77 km) |
| Illingen to Coral Gables (Florida) | 4,775.00 mi (7,684.63 km) |
| Illingen to Coral Springs (Florida) | 4,746.40 mi (7,638.60 km) |
| Illingen to Coral Terrace (Florida) | 4,774.33 mi (7,683.55 km) |
| Illingen to Coralville (Iowa) | 4,450.88 mi (7,163.01 km) |
| Illingen to Coram (New York) | 3,760.50 mi (6,051.93 km) |
| Illingen to Corcoran (California) | 5,689.48 mi (9,156.34 km) |
| Illingen to Cordele (Georgia) | 4,616.06 mi (7,428.84 km) |
