| Hounslow to Karis | 1,097.86 mi (1,766.83 km) |
| Hounslow to Karkkila | 1,127.56 mi (1,814.64 km) |
| Hounslow to Kauhajoki | 1,127.82 mi (1,815.05 km) |
| Hounslow to Kauhava | 1,176.06 mi (1,892.68 km) |
| Hounslow to Kauniainen | 1,135.82 mi (1,827.93 km) |
| Hounslow to Kemi | 1,315.69 mi (2,117.40 km) |
| Hounslow to Kemijarvi | 1,420.05 mi (2,285.35 km) |
| Hounslow to Kempele | 1,305.76 mi (2,101.42 km) |
| Hounslow to Kerava | 1,152.07 mi (1,854.07 km) |
| Hounslow to Keuruu | 1,192.56 mi (1,919.24 km) |
| Hounslow to Kiiminki | 1,320.59 mi (2,125.29 km) |
| Hounslow to Kirkkonummi | 1,123.19 mi (1,807.59 km) |
| Hounslow to Kitee | 1,349.34 mi (2,171.55 km) |
| Hounslow to Kiuruvesi | 1,290.21 mi (2,076.40 km) |
| Hounslow to Kivisto | 1,142.05 mi (1,837.95 km) |
