| South Plainfield to Kingsville (Texas) | 1,609.42 mi (2,590.11 km) |
| South Plainfield to Kinston (North Carolina) | 405.04 mi (651.84 km) |
| South Plainfield to Kirkland (Washington) | 2,380.94 mi (3,831.75 km) |
| South Plainfield to Kirksville (Missouri) | 954.38 mi (1,535.92 km) |
| South Plainfield to Kirkwood (Missouri) | 862.19 mi (1,387.57 km) |
| South Plainfield to Kiryas Joel (New York) | 54.51 mi (87.73 km) |
| South Plainfield to Kissimmee (Florida) | 936.19 mi (1,506.65 km) |
| South Plainfield to Klamath Falls (Oregon) | 2,425.41 mi (3,903.33 km) |
| South Plainfield to Knightdale (North Carolina) | 397.86 mi (640.29 km) |
| South Plainfield to Knik-Fairview (Alaska) | 3,342.89 mi (5,379.86 km) |
| South Plainfield to Knoxville (Tennessee) | 606.70 mi (976.39 km) |
| South Plainfield to Kokomo (Indiana) | 614.78 mi (989.39 km) |
| South Plainfield to Kuna (Idaho) | 2,140.85 mi (3,445.37 km) |
| South Plainfield to Kyle (Texas) | 1,505.33 mi (2,422.60 km) |
| South Plainfield to La Cañada Flintridge (California) | 2,418.11 mi (3,891.57 km) |
