| Willoughby to Colton (California) | 2,012.68 mi (3,239.09 km) |
| Willoughby to Columbia (Illinois) | 514.91 mi (828.66 km) |
| Willoughby to Columbia (Maryland) | 292.87 mi (471.33 km) |
| Willoughby to Columbia (Missouri) | 604.33 mi (972.57 km) |
| Willoughby to Columbia (Pennsylvania) | 279.89 mi (450.44 km) |
| Willoughby to Columbia (South Carolina) | 526.39 mi (847.14 km) |
| Willoughby to Columbia (Tennessee) | 515.28 mi (829.26 km) |
| Willoughby to Columbia Heights (Minnesota) | 638.85 mi (1,028.13 km) |
| Willoughby to Columbine (Colorado) | 1,245.12 mi (2,003.82 km) |
| Willoughby to Columbus (Georgia) | 659.39 mi (1,061.19 km) |
| Willoughby to Columbus (Indiana) | 290.81 mi (468.01 km) |
| Willoughby to Columbus (Mississippi) | 679.94 mi (1,094.25 km) |
| Willoughby to Columbus (Nebraska) | 823.70 mi (1,325.62 km) |
| Willoughby to Columbus (Ohio) | 141.24 mi (227.31 km) |
| Willoughby to Commack (New York) | 425.57 mi (684.89 km) |
