| Upminster to Karahalli | 1,681.31 mi (2,705.81 km) |
| Upminster to Karakocan | 2,089.18 mi (3,362.21 km) |
| Upminster to Karakopru | 2,113.71 mi (3,401.69 km) |
| Upminster to Karaman | 1,883.50 mi (3,031.19 km) |
| Upminster to Karapinar | 1,872.48 mi (3,013.46 km) |
| Upminster to Karatas | 2,000.64 mi (3,219.72 km) |
| Upminster to Karatepe | 1,591.64 mi (2,561.50 km) |
| Upminster to Karayilan | 2,028.59 mi (3,264.70 km) |
| Upminster to Kargipinar | 1,956.36 mi (3,148.46 km) |
| Upminster to Karkamis | 2,096.45 mi (3,373.91 km) |
| Upminster to Karliova | 2,116.22 mi (3,405.72 km) |
| Upminster to Kars | 2,151.89 mi (3,463.12 km) |
| Upminster to Kartal | 1,553.11 mi (2,499.49 km) |
| Upminster to Kas | 1,787.73 mi (2,877.08 km) |
| Upminster to Kastamonu | 1,724.17 mi (2,774.78 km) |
