| Northampton to Kinston (North Carolina) | 3,810.01 mi (6,131.62 km) |
| Northampton to Kirkland (Washington) | 4,716.30 mi (7,590.14 km) |
| Northampton to Kirksville (Missouri) | 4,161.67 mi (6,697.56 km) |
| Northampton to Kirkwood (Missouri) | 4,159.79 mi (6,694.53 km) |
| Northampton to Kiryas Joel (New York) | 3,393.77 mi (5,461.74 km) |
| Northampton to Kissimmee (Florida) | 4,310.08 mi (6,936.40 km) |
| Northampton to Klamath Falls (Oregon) | 5,018.97 mi (8,077.25 km) |
| Northampton to Knightdale (North Carolina) | 3,822.40 mi (6,151.56 km) |
| Northampton to Knik-Fairview (Alaska) | 4,392.70 mi (7,069.37 km) |
| Northampton to Knoxville (Tennessee) | 4,033.96 mi (6,492.03 km) |
| Northampton to Kokomo (Indiana) | 3,904.82 mi (6,284.20 km) |
| Northampton to Kuna (Idaho) | 4,791.41 mi (7,711.04 km) |
| Northampton to Kyle (Texas) | 4,884.58 mi (7,860.97 km) |
| Northampton to La Cañada Flintridge (California) | 5,372.47 mi (8,646.16 km) |
| Northampton to La Crescenta-Montrose (California) | 5,372.30 mi (8,645.88 km) |
