| Festus to Keizer (Oregon) | 1,735.78 mi (2,793.46 km) |
| Festus to Keller (Texas) | 528.94 mi (851.24 km) |
| Festus to Kelso (Washington) | 1,736.60 mi (2,794.78 km) |
| Festus to Kemp Mill (Maryland) | 724.20 mi (1,165.48 km) |
| Festus to Ken Caryl (Colorado) | 795.35 mi (1,279.99 km) |
| Festus to Kendale Lakes (Florida) | 1,042.97 mi (1,678.50 km) |
| Festus to Kendall (Florida) | 1,046.93 mi (1,684.88 km) |
| Festus to Kendall Park (New Jersey) | 859.31 mi (1,382.92 km) |
| Festus to Kendall West (Florida) | 1,042.05 mi (1,677.02 km) |
| Festus to Kenmore (New York) | 687.59 mi (1,106.58 km) |
| Festus to Kenmore (Washington) | 1,723.55 mi (2,773.78 km) |
| Festus to Kenner (Louisiana) | 567.22 mi (912.85 km) |
| Festus to Kennesaw (Georgia) | 433.92 mi (698.33 km) |
| Festus to Kennett (Missouri) | 138.18 mi (222.38 km) |
| Festus to Kennewick (Washington) | 1,561.38 mi (2,512.80 km) |
