| Thornton Heath to Kenosha (Wisconsin) | 3,928.38 mi (6,322.12 km) |
| Thornton Heath to Kent (Ohio) | 3,741.22 mi (6,020.92 km) |
| Thornton Heath to Kent (Washington) | 4,799.92 mi (7,724.73 km) |
| Thornton Heath to Kentwood (Michigan) | 3,827.77 mi (6,160.20 km) |
| Thornton Heath to Kerman (California) | 5,349.81 mi (8,609.69 km) |
| Thornton Heath to Kernersville (North Carolina) | 3,921.11 mi (6,310.41 km) |
| Thornton Heath to Kerrville (Texas) | 4,985.08 mi (8,022.71 km) |
| Thornton Heath to Kettering (Maryland) | 3,658.43 mi (5,887.67 km) |
| Thornton Heath to Kettering (Ohio) | 3,917.68 mi (6,304.90 km) |
| Thornton Heath to Kewanee (Illinois) | 4,068.91 mi (6,548.28 km) |
| Thornton Heath to Key Biscayne (Florida) | 4,432.94 mi (7,134.13 km) |
| Thornton Heath to Key Largo (Florida) | 4,472.18 mi (7,197.27 km) |
| Thornton Heath to Key West (Florida) | 4,558.57 mi (7,336.31 km) |
| Thornton Heath to Keystone (Florida) | 4,413.13 mi (7,102.25 km) |
| Thornton Heath to Kihei (Hawaii) | 7,248.25 mi (11,664.93 km) |
