| Festus to Kenosha (Wisconsin) | 329.80 mi (530.77 km) |
| Festus to Kent (Ohio) | 521.65 mi (839.51 km) |
| Festus to Kent (Washington) | 1,717.41 mi (2,763.90 km) |
| Festus to Kentwood (Michigan) | 409.57 mi (659.14 km) |
| Festus to Kerman (California) | 1,622.38 mi (2,610.96 km) |
| Festus to Kernersville (North Carolina) | 586.63 mi (944.09 km) |
| Festus to Kerrville (Texas) | 753.06 mi (1,211.94 km) |
| Festus to Kettering (Maryland) | 736.73 mi (1,185.65 km) |
| Festus to Kettering (Ohio) | 351.39 mi (565.50 km) |
| Festus to Kewanee (Illinois) | 210.27 mi (338.40 km) |
| Festus to Key Biscayne (Florida) | 1,051.96 mi (1,692.96 km) |
| Festus to Key Largo (Florida) | 1,077.51 mi (1,734.08 km) |
| Festus to Key West (Florida) | 1,070.81 mi (1,723.30 km) |
| Festus to Keystone (Florida) | 829.78 mi (1,335.40 km) |
| Festus to Kihei (Hawaii) | 4,064.10 mi (6,540.54 km) |
