| Boston to Kenosha (Wisconsin) | 3,880.44 mi (6,244.97 km) |
| Boston to Kent (Ohio) | 3,702.43 mi (5,958.49 km) |
| Boston to Kent (Washington) | 4,716.41 mi (7,590.33 km) |
| Boston to Kentwood (Michigan) | 3,781.71 mi (6,086.07 km) |
| Boston to Kerman (California) | 5,276.17 mi (8,491.17 km) |
| Boston to Kernersville (North Carolina) | 3,891.96 mi (6,263.51 km) |
| Boston to Kerrville (Texas) | 4,940.94 mi (7,951.68 km) |
| Boston to Kettering (Maryland) | 3,628.65 mi (5,839.75 km) |
| Boston to Kettering (Ohio) | 3,878.14 mi (6,241.27 km) |
| Boston to Kewanee (Illinois) | 4,020.83 mi (6,470.90 km) |
| Boston to Key Biscayne (Florida) | 4,419.25 mi (7,112.09 km) |
| Boston to Key Largo (Florida) | 4,458.93 mi (7,175.96 km) |
| Boston to Key West (Florida) | 4,544.19 mi (7,313.16 km) |
| Boston to Keystone (Florida) | 4,392.65 mi (7,069.29 km) |
| Boston to Kihei (Hawaii) | 7,149.38 mi (11,505.82 km) |
