| Willoughby to Central Point (Oregon) | 2,109.78 mi (3,395.36 km) |
| Willoughby to Centralia (Illinois) | 461.16 mi (742.16 km) |
| Willoughby to Centralia (Washington) | 2,064.19 mi (3,321.99 km) |
| Willoughby to Centreville (Virginia) | 285.32 mi (459.17 km) |
| Willoughby to Ceres (California) | 2,104.99 mi (3,387.66 km) |
| Willoughby to Cerritos (California) | 2,056.60 mi (3,309.78 km) |
| Willoughby to Chalco (Nebraska) | 762.84 mi (1,227.68 km) |
| Willoughby to Chalmette (Louisiana) | 938.90 mi (1,511.02 km) |
| Willoughby to Chambersburg (Pennsylvania) | 229.25 mi (368.95 km) |
| Willoughby to Chamblee (Georgia) | 558.97 mi (899.57 km) |
| Willoughby to Champaign (Illinois) | 373.81 mi (601.59 km) |
| Willoughby to Champlin (Minnesota) | 648.05 mi (1,042.93 km) |
| Willoughby to Chandler (Arizona) | 1,755.84 mi (2,825.75 km) |
| Willoughby to Chanhassen (Minnesota) | 649.80 mi (1,045.75 km) |
| Willoughby to Channahon (Illinois) | 354.61 mi (570.70 km) |
