| Williamstown to San Clemente (California) | 2,381.85 mi (3,833.22 km) |
| Williamstown to San Diego (California) | 2,372.87 mi (3,818.77 km) |
| Williamstown to San Diego Country Estates (California) | 2,350.15 mi (3,782.20 km) |
| Williamstown to San Dimas (California) | 2,374.97 mi (3,822.15 km) |
| Williamstown to San Fernando (California) | 2,403.54 mi (3,868.12 km) |
| Williamstown to San Francisco (California) | 2,532.13 mi (4,075.07 km) |
| Williamstown to San Gabriel (California) | 2,390.69 mi (3,847.45 km) |
| Williamstown to San Germán (Puerto Rico) | 1,566.28 mi (2,520.68 km) |
| Williamstown to San Jacinto (California) | 2,339.76 mi (3,765.48 km) |
| Williamstown to San Jose (California) | 2,511.01 mi (4,041.08 km) |
| Williamstown to San Juan (Puerto Rico) | 1,564.34 mi (2,517.56 km) |
| Williamstown to San Juan (Texas) | 1,627.58 mi (2,619.34 km) |
| Williamstown to San Juan Capistrano (California) | 2,382.83 mi (3,834.79 km) |
| Williamstown to San Leandro (California) | 2,518.38 mi (4,052.93 km) |
| Williamstown to San Lorenzo (California) | 2,517.72 mi (4,051.89 km) |
