| Hartford to Jozefow | 4,170.39 mi (6,711.59 km) |
| Hartford to Kalisz | 4,067.46 mi (6,545.94 km) |
| Hartford to Kamien Pomorski | 3,874.21 mi (6,234.94 km) |
| Hartford to Kamienna Gora | 4,022.78 mi (6,474.04 km) |
| Hartford to Karczew | 4,172.78 mi (6,715.44 km) |
| Hartford to Kartuzy | 3,986.26 mi (6,415.27 km) |
| Hartford to Katowice | 4,154.29 mi (6,685.68 km) |
| Hartford to Kedzierzyn-Kozle | 4,120.30 mi (6,630.99 km) |
| Hartford to Kepno | 4,079.97 mi (6,566.07 km) |
| Hartford to Ketrzyn | 4,107.00 mi (6,609.59 km) |
| Hartford to Kety | 4,174.89 mi (6,718.84 km) |
| Hartford to Kielce | 4,193.44 mi (6,748.69 km) |
| Hartford to Kielczow | 4,054.44 mi (6,525.00 km) |
| Hartford to Klobuck | 4,128.33 mi (6,643.90 km) |
| Hartford to Klodzko | 4,058.15 mi (6,530.97 km) |
