| Upminster to Jozefow | 893.40 mi (1,437.79 km) |
| Upminster to Kalisz | 762.43 mi (1,227.01 km) |
| Upminster to Kamien Pomorski | 628.36 mi (1,011.25 km) |
| Upminster to Kamienna Gora | 684.46 mi (1,101.54 km) |
| Upminster to Karczew | 894.46 mi (1,439.49 km) |
| Upminster to Kartuzy | 769.21 mi (1,237.92 km) |
| Upminster to Katowice | 820.06 mi (1,319.77 km) |
| Upminster to Kedzierzyn-Kozle | 783.67 mi (1,261.19 km) |
| Upminster to Kepno | 762.39 mi (1,226.95 km) |
| Upminster to Ketrzyn | 895.93 mi (1,441.85 km) |
| Upminster to Kety | 834.92 mi (1,343.67 km) |
| Upminster to Kielce | 880.53 mi (1,417.08 km) |
| Upminster to Kielczow | 729.42 mi (1,173.88 km) |
| Upminster to Klobuck | 807.19 mi (1,299.05 km) |
| Upminster to Klodzko | 715.81 mi (1,151.99 km) |
