| Willoughby to Havelock (North Carolina) | 525.71 mi (846.04 km) |
| Willoughby to Haverhill (Massachusetts) | 533.64 mi (858.81 km) |
| Willoughby to Havre de Grace (Maryland) | 313.20 mi (504.04 km) |
| Willoughby to Hawaiian Gardens (California) | 2,057.95 mi (3,311.95 km) |
| Willoughby to Hawaiian Paradise Park (Hawaii) | 4,493.91 mi (7,232.25 km) |
| Willoughby to Hawthorne (California) | 2,069.57 mi (3,330.65 km) |
| Willoughby to Hawthorne (New Jersey) | 379.20 mi (610.27 km) |
| Willoughby to Hayden (Idaho) | 1,772.16 mi (2,852.01 km) |
| Willoughby to Hayesville (Oregon) | 2,079.25 mi (3,346.23 km) |
| Willoughby to Hays (Kansas) | 961.72 mi (1,547.73 km) |
| Willoughby to Haysville (Kansas) | 892.80 mi (1,436.82 km) |
| Willoughby to Hayward (California) | 2,161.33 mi (3,478.32 km) |
| Willoughby to Hazel Crest (Illinois) | 324.47 mi (522.18 km) |
| Willoughby to Hazel Dell (Washington) | 2,057.28 mi (3,310.87 km) |
| Willoughby to Hazel Park (Michigan) | 103.39 mi (166.39 km) |
