| Delaware to Kinston (North Carolina) | 457.41 mi (736.12 km) |
| Delaware to Kirkland (Washington) | 1,988.45 mi (3,200.10 km) |
| Delaware to Kirksville (Missouri) | 500.89 mi (806.10 km) |
| Delaware to Kirkwood (Missouri) | 409.24 mi (658.60 km) |
| Delaware to Kiryas Joel (New York) | 471.25 mi (758.41 km) |
| Delaware to Kissimmee (Florida) | 833.15 mi (1,340.82 km) |
| Delaware to Klamath Falls (Oregon) | 1,997.50 mi (3,214.66 km) |
| Delaware to Knightdale (North Carolina) | 397.95 mi (640.43 km) |
| Delaware to Knik-Fairview (Alaska) | 3,075.58 mi (4,949.67 km) |
| Delaware to Knoxville (Tennessee) | 301.97 mi (485.97 km) |
| Delaware to Kokomo (Indiana) | 161.20 mi (259.42 km) |
| Delaware to Kuna (Idaho) | 1,716.48 mi (2,762.40 km) |
| Delaware to Kyle (Texas) | 1,095.44 mi (1,762.94 km) |
| Delaware to La Cañada Flintridge (California) | 1,963.51 mi (3,159.96 km) |
| Delaware to La Crescenta-Montrose (California) | 1,964.76 mi (3,161.98 km) |
