| Boston to Superior (Colorado) | 4,624.24 mi (7,441.99 km) |
| Boston to Superior (Wisconsin) | 3,836.07 mi (6,173.56 km) |
| Boston to Surprise (Arizona) | 5,211.73 mi (8,387.47 km) |
| Boston to Susanville (California) | 5,077.00 mi (8,170.64 km) |
| Boston to Sussex (Wisconsin) | 3,867.06 mi (6,223.43 km) |
| Boston to Suwanee (Georgia) | 4,151.22 mi (6,680.75 km) |
| Boston to Swansea (Illinois) | 4,155.48 mi (6,687.59 km) |
| Boston to Sweetwater (Florida) | 4,423.36 mi (7,118.71 km) |
| Boston to Sweetwater (Texas) | 4,857.69 mi (7,817.70 km) |
| Boston to Sycamore (Illinois) | 3,938.39 mi (6,338.22 km) |
| Boston to Sylacauga (Alabama) | 4,281.61 mi (6,890.58 km) |
| Boston to Sylvania (Ohio) | 3,765.97 mi (6,060.74 km) |
| Boston to Syosset (New York) | 3,409.86 mi (5,487.64 km) |
| Boston to Syracuse (New York) | 3,414.86 mi (5,495.69 km) |
| Boston to Syracuse (Utah) | 4,784.69 mi (7,700.22 km) |
