| London Colney to Kenosha (Wisconsin) | 3,910.45 mi (6,293.27 km) |
| London Colney to Kent (Ohio) | 3,724.81 mi (5,994.50 km) |
| London Colney to Kent (Washington) | 4,777.11 mi (7,688.01 km) |
| London Colney to Kentwood (Michigan) | 3,810.14 mi (6,131.83 km) |
| London Colney to Kerman (California) | 5,328.16 mi (8,574.84 km) |
| London Colney to Kernersville (North Carolina) | 3,906.40 mi (6,286.75 km) |
| London Colney to Kerrville (Texas) | 4,967.83 mi (7,994.95 km) |
| London Colney to Kettering (Maryland) | 3,643.59 mi (5,863.79 km) |
| London Colney to Kettering (Ohio) | 3,901.15 mi (6,278.30 km) |
| London Colney to Kewanee (Illinois) | 4,050.96 mi (6,519.40 km) |
| London Colney to Key Biscayne (Florida) | 4,421.16 mi (7,115.17 km) |
| London Colney to Key Largo (Florida) | 4,460.49 mi (7,178.46 km) |
| London Colney to Key West (Florida) | 4,546.67 mi (7,317.15 km) |
| London Colney to Keystone (Florida) | 4,400.06 mi (7,081.21 km) |
| London Colney to Kihei (Hawaii) | 7,224.31 mi (11,626.41 km) |
