| Key West to Kalispell (Montana) | 2,406.78 mi (3,873.34 km) |
| Key West to Kaneohe (Hawaii) | 4,775.82 mi (7,685.95 km) |
| Key West to Kankakee (Illinois) | 1,195.21 mi (1,923.51 km) |
| Key West to Kannapolis (North Carolina) | 757.00 mi (1,218.28 km) |
| Key West to Kansas City (Kansas) | 1,258.46 mi (2,025.30 km) |
| Key West to Kansas City (Missouri) | 1,251.85 mi (2,014.66 km) |
| Key West to Kapaa (Hawaii) | 4,854.85 mi (7,813.12 km) |
| Key West to Kapolei (Hawaii) | 4,794.18 mi (7,715.49 km) |
| Key West to Katy (Texas) | 935.57 mi (1,505.65 km) |
| Key West to Kaukauna (Wisconsin) | 1,410.15 mi (2,269.42 km) |
| Key West to Kaysville (Utah) | 2,072.49 mi (3,335.35 km) |
| Key West to Kearney (Missouri) | 1,257.46 mi (2,023.69 km) |
| Key West to Kearney (Nebraska) | 1,496.60 mi (2,408.55 km) |
| Key West to Kearns (Utah) | 2,065.13 mi (3,323.51 km) |
| Key West to Kearny (New Jersey) | 1,202.69 mi (1,935.53 km) |
