| Willoughby to Shoreline (Washington) | 2,029.28 mi (3,265.82 km) |
| Willoughby to Shoreview (Minnesota) | 634.42 mi (1,021.00 km) |
| Willoughby to Shorewood (Illinois) | 351.78 mi (566.14 km) |
| Willoughby to Shorewood (Wisconsin) | 345.33 mi (555.76 km) |
| Willoughby to Short Hills (New Jersey) | 373.32 mi (600.81 km) |
| Willoughby to Short Pump (Virginia) | 341.46 mi (549.53 km) |
| Willoughby to Show Low (Arizona) | 1,632.10 mi (2,626.61 km) |
| Willoughby to Shreveport (Louisiana) | 930.33 mi (1,497.22 km) |
| Willoughby to Sicklerville (New Jersey) | 360.69 mi (580.47 km) |
| Willoughby to Sidney (Ohio) | 171.73 mi (276.37 km) |
| Willoughby to Sierra Madre (California) | 2,046.62 mi (3,293.72 km) |
| Willoughby to Sierra Vista (Arizona) | 1,737.45 mi (2,796.16 km) |
| Willoughby to Sierra Vista Southeast (Arizona) | 1,736.52 mi (2,794.66 km) |
| Willoughby to Signal Hill (California) | 2,063.70 mi (3,321.20 km) |
| Willoughby to Sikeston (Missouri) | 546.96 mi (880.25 km) |
