| Boston to San Luis Obispo (California) | 5,379.46 mi (8,657.41 km) |
| Boston to San Marcos (California) | 5,395.92 mi (8,683.89 km) |
| Boston to San Marcos (Texas) | 4,904.84 mi (7,893.58 km) |
| Boston to San Marino (California) | 5,368.22 mi (8,639.32 km) |
| Boston to San Mateo (California) | 5,293.34 mi (8,518.81 km) |
| Boston to San Pablo (California) | 5,270.04 mi (8,481.31 km) |
| Boston to San Rafael (California) | 5,273.53 mi (8,486.93 km) |
| Boston to San Ramon (California) | 5,270.20 mi (8,481.57 km) |
| Boston to San Tan Valley (Arizona) | 5,210.55 mi (8,385.56 km) |
| Boston to Sand Springs (Oklahoma) | 4,506.63 mi (7,252.72 km) |
| Boston to Sandusky (Ohio) | 3,739.97 mi (6,018.91 km) |
| Boston to Sandy (Oregon) | 4,833.14 mi (7,778.18 km) |
| Boston to Sandy (Utah) | 4,806.41 mi (7,735.17 km) |
| Boston to Sandy Springs (Georgia) | 4,168.86 mi (6,709.14 km) |
| Boston to Sanford (Florida) | 4,305.04 mi (6,928.29 km) |
