| Willoughby to Channelview (Texas) | 1,120.56 mi (1,803.37 km) |
| Willoughby to Chantilly (Virginia) | 282.78 mi (455.09 km) |
| Willoughby to Chaparral (New Mexico) | 1,525.62 mi (2,455.24 km) |
| Willoughby to Chapel Hill (North Carolina) | 415.18 mi (668.16 km) |
| Willoughby to Charleston (Illinois) | 385.30 mi (620.08 km) |
| Willoughby to Charleston (South Carolina) | 615.12 mi (989.95 km) |
| Willoughby to Charleston (West Virginia) | 228.14 mi (367.16 km) |
| Willoughby to Charlotte (North Carolina) | 445.89 mi (717.59 km) |
| Willoughby to Charlottesville (Virginia) | 293.56 mi (472.44 km) |
| Willoughby to Chaska (Minnesota) | 651.31 mi (1,048.18 km) |
| Willoughby to Chatham (Illinois) | 454.92 mi (732.12 km) |
| Willoughby to Chattanooga (Tennessee) | 499.82 mi (804.39 km) |
| Willoughby to Cheat Lake (West Virginia) | 159.09 mi (256.03 km) |
| Willoughby to Chelsea (Alabama) | 641.85 mi (1,032.96 km) |
| Willoughby to Chelsea (Massachusetts) | 534.77 mi (860.62 km) |
