| Willoughby to Willow Grove (Pennsylvania) | 344.40 mi (554.26 km) |
| Willoughby to Willowbrook (California) | 2,063.61 mi (3,321.05 km) |
| Willoughby to Willowick (Ohio) | 3.17 mi (5.10 km) |
| Willoughby to Wilmette (Illinois) | 326.49 mi (525.43 km) |
| Willoughby to Wilmington (Delaware) | 334.23 mi (537.89 km) |
| Willoughby to Wilmington (North Carolina) | 548.32 mi (882.44 km) |
| Willoughby to Wilmington (Ohio) | 198.14 mi (318.87 km) |
| Willoughby to Wilmington Island (Georgia) | 666.67 mi (1,072.90 km) |
| Willoughby to Wilson (North Carolina) | 449.60 mi (723.56 km) |
| Willoughby to Wilsonville (Oregon) | 2,066.15 mi (3,325.14 km) |
| Willoughby to Wilton Manors (Florida) | 1,072.46 mi (1,725.95 km) |
| Willoughby to Wimauma (Florida) | 965.14 mi (1,553.25 km) |
| Willoughby to Winchester (Kentucky) | 291.84 mi (469.67 km) |
| Willoughby to Winchester (Nevada) | 1,841.04 mi (2,962.86 km) |
| Willoughby to Winchester (Virginia) | 241.06 mi (387.94 km) |
