| Willoughby to Crawfordsville (Indiana) | 307.48 mi (494.84 km) |
| Willoughby to Crest Hill (Illinois) | 346.28 mi (557.29 km) |
| Willoughby to Crestview (Florida) | 805.87 mi (1,296.92 km) |
| Willoughby to Crestwood (Illinois) | 326.82 mi (525.97 km) |
| Willoughby to Crestwood (Missouri) | 519.54 mi (836.12 km) |
| Willoughby to Creve Coeur (Missouri) | 519.40 mi (835.90 km) |
| Willoughby to Crofton (Maryland) | 308.28 mi (496.13 km) |
| Willoughby to Crossville (Tennessee) | 438.93 mi (706.39 km) |
| Willoughby to Crowley (Louisiana) | 998.16 mi (1,606.39 km) |
| Willoughby to Crowley (Texas) | 1,076.42 mi (1,732.32 km) |
| Willoughby to Crown Point (Indiana) | 307.46 mi (494.80 km) |
| Willoughby to Crystal (Minnesota) | 643.88 mi (1,036.23 km) |
| Willoughby to Crystal Lake (Illinois) | 358.20 mi (576.47 km) |
| Willoughby to Cudahy (California) | 2,059.62 mi (3,314.64 km) |
| Willoughby to Cudahy (Wisconsin) | 341.85 mi (550.16 km) |
