| Willoughby to Salisbury (Maryland) | 381.92 mi (614.65 km) |
| Willoughby to Salisbury (New York) | 412.59 mi (663.99 km) |
| Willoughby to Salisbury (North Carolina) | 416.13 mi (669.70 km) |
| Willoughby to Salmon Creek (Washington) | 2,057.40 mi (3,311.06 km) |
| Willoughby to Salt Lake City (Utah) | 1,579.32 mi (2,541.67 km) |
| Willoughby to Sammamish (Washington) | 2,015.94 mi (3,244.35 km) |
| Willoughby to San Angelo (Texas) | 1,266.01 mi (2,037.45 km) |
| Willoughby to San Anselmo (California) | 2,178.33 mi (3,505.69 km) |
| Willoughby to San Antonio (Texas) | 1,273.95 mi (2,050.22 km) |
| Willoughby to San Benito (Texas) | 1,414.97 mi (2,277.17 km) |
| Willoughby to San Bernardino (California) | 2,008.44 mi (3,232.27 km) |
| Willoughby to San Bruno (California) | 2,179.70 mi (3,507.89 km) |
| Willoughby to San Buenaventura (California) | 2,104.44 mi (3,386.76 km) |
| Willoughby to San Carlos (California) | 2,174.38 mi (3,499.33 km) |
| Willoughby to San Carlos Park (Florida) | 1,048.36 mi (1,687.18 km) |
