| Willoughby to Chicago Ridge (Illinois) | 328.75 mi (529.07 km) |
| Willoughby to Chickasha (Oklahoma) | 1,003.40 mi (1,614.82 km) |
| Willoughby to Chico (California) | 2,101.17 mi (3,381.51 km) |
| Willoughby to Chicopee (Massachusetts) | 455.62 mi (733.26 km) |
| Willoughby to Chillicothe (Ohio) | 179.82 mi (289.40 km) |
| Willoughby to Chillum (Maryland) | 297.82 mi (479.29 km) |
| Willoughby to Chino (California) | 2,032.31 mi (3,270.69 km) |
| Willoughby to Chino Hills (California) | 2,036.40 mi (3,277.26 km) |
| Willoughby to Chino Valley (Arizona) | 1,738.82 mi (2,798.35 km) |
| Willoughby to Chippewa Falls (Wisconsin) | 550.57 mi (886.05 km) |
| Willoughby to Choctaw (Oklahoma) | 954.78 mi (1,536.58 km) |
| Willoughby to Chowchilla (California) | 2,079.37 mi (3,346.42 km) |
| Willoughby to Christiansburg (Virginia) | 315.87 mi (508.34 km) |
| Willoughby to Chubbuck (Idaho) | 1,580.75 mi (2,543.98 km) |
| Willoughby to Chula Vista (California) | 2,041.28 mi (3,285.13 km) |
