| Willoughby to Sacramento (California) | 2,108.58 mi (3,393.43 km) |
| Willoughby to Saddlebrooke (Arizona) | 1,730.42 mi (2,784.84 km) |
| Willoughby to Safety Harbor (Florida) | 945.08 mi (1,520.96 km) |
| Willoughby to Saginaw (Michigan) | 178.23 mi (286.83 km) |
| Willoughby to Saginaw (Texas) | 1,064.02 mi (1,712.38 km) |
| Willoughby to Sahuarita (Arizona) | 1,756.83 mi (2,827.34 km) |
| Willoughby to Saks (Alabama) | 599.44 mi (964.71 km) |
| Willoughby to Salem (Massachusetts) | 541.75 mi (871.86 km) |
| Willoughby to Salem (Ohio) | 58.86 mi (94.72 km) |
| Willoughby to Salem (Oregon) | 2,082.28 mi (3,351.11 km) |
| Willoughby to Salem (Virginia) | 309.72 mi (498.45 km) |
| Willoughby to Salem Lakes (Wisconsin) | 350.02 mi (563.30 km) |
| Willoughby to Salida (California) | 2,108.58 mi (3,393.43 km) |
| Willoughby to Salina (Kansas) | 875.54 mi (1,409.05 km) |
| Willoughby to Salinas (California) | 2,161.84 mi (3,479.15 km) |
