| Middlesex to Kalispell (Montana) | 2,011.24 mi (3,236.78 km) |
| Middlesex to Kaneohe (Hawaii) | 4,928.79 mi (7,932.11 km) |
| Middlesex to Kankakee (Illinois) | 698.80 mi (1,124.61 km) |
| Middlesex to Kannapolis (North Carolina) | 485.27 mi (780.97 km) |
| Middlesex to Kansas City (Kansas) | 1,076.09 mi (1,731.80 km) |
| Middlesex to Kansas City (Missouri) | 1,066.11 mi (1,715.73 km) |
| Middlesex to Kapaa (Hawaii) | 4,979.87 mi (8,014.33 km) |
| Middlesex to Kapolei (Hawaii) | 4,945.76 mi (7,959.43 km) |
| Middlesex to Katy (Texas) | 1,410.79 mi (2,270.45 km) |
| Middlesex to Kaukauna (Wisconsin) | 745.98 mi (1,200.53 km) |
| Middlesex to Kaysville (Utah) | 1,943.44 mi (3,127.67 km) |
| Middlesex to Kearney (Missouri) | 1,052.77 mi (1,694.27 km) |
| Middlesex to Kearney (Nebraska) | 1,284.66 mi (2,067.47 km) |
| Middlesex to Kearns (Utah) | 1,952.11 mi (3,141.61 km) |
| Middlesex to Kearny (New Jersey) | 23.46 mi (37.76 km) |
