| Willoughby to San Clemente (California) | 2,045.80 mi (3,292.40 km) |
| Willoughby to San Diego (California) | 2,040.25 mi (3,283.46 km) |
| Willoughby to San Diego Country Estates (California) | 2,017.34 mi (3,246.59 km) |
| Willoughby to San Dimas (California) | 2,035.98 mi (3,276.59 km) |
| Willoughby to San Fernando (California) | 2,062.97 mi (3,320.03 km) |
| Willoughby to San Francisco (California) | 2,177.28 mi (3,503.99 km) |
| Willoughby to San Gabriel (California) | 2,051.33 mi (3,301.30 km) |
| Willoughby to San Germán (Puerto Rico) | 1,835.55 mi (2,954.03 km) |
| Willoughby to San Jacinto (California) | 2,003.25 mi (3,223.92 km) |
| Willoughby to San Jose (California) | 2,157.63 mi (3,472.37 km) |
| Willoughby to San Juan (Puerto Rico) | 1,843.46 mi (2,966.76 km) |
| Willoughby to San Juan (Texas) | 1,430.63 mi (2,302.38 km) |
| Willoughby to San Juan Capistrano (California) | 2,046.50 mi (3,293.52 km) |
| Willoughby to San Leandro (California) | 2,163.82 mi (3,482.33 km) |
| Willoughby to San Lorenzo (California) | 2,163.26 mi (3,481.43 km) |
