| Festus to Kinston (North Carolina) | 737.41 mi (1,186.75 km) |
| Festus to Kirkland (Washington) | 1,720.88 mi (2,769.49 km) |
| Festus to Kirksville (Missouri) | 179.27 mi (288.50 km) |
| Festus to Kirkwood (Missouri) | 24.84 mi (39.97 km) |
| Festus to Kiryas Joel (New York) | 887.57 mi (1,428.40 km) |
| Festus to Kissimmee (Florida) | 858.81 mi (1,382.12 km) |
| Festus to Klamath Falls (Oregon) | 1,668.03 mi (2,684.44 km) |
| Festus to Knightdale (North Carolina) | 677.85 mi (1,090.90 km) |
| Festus to Knik-Fairview (Alaska) | 2,946.51 mi (4,741.96 km) |
| Festus to Knoxville (Tennessee) | 388.37 mi (625.03 km) |
| Festus to Kokomo (Indiana) | 276.36 mi (444.76 km) |
| Festus to Kuna (Idaho) | 1,399.51 mi (2,252.29 km) |
| Festus to Kyle (Texas) | 710.72 mi (1,143.79 km) |
| Festus to La Cañada Flintridge (California) | 1,567.65 mi (2,522.90 km) |
| Festus to La Crescenta-Montrose (California) | 1,569.07 mi (2,525.18 km) |
