| Upminster to Glyka Nera | 1,477.73 mi (2,378.17 km) |
| Upminster to Grevena | 1,283.45 mi (2,065.51 km) |
| Upminster to Ialysos | 1,719.49 mi (2,767.25 km) |
| Upminster to Ilion | 1,470.12 mi (2,365.93 km) |
| Upminster to Ilioupoli | 1,477.03 mi (2,377.05 km) |
| Upminster to Ioannina | 1,283.12 mi (2,064.98 km) |
| Upminster to Irakleio | 1,662.22 mi (2,675.09 km) |
| Upminster to Irakleio | 1,471.75 mi (2,368.56 km) |
| Upminster to Kaisariani | 1,475.57 mi (2,374.70 km) |
| Upminster to Kalamaria | 1,317.30 mi (2,119.99 km) |
| Upminster to Kalamata | 1,464.13 mi (2,356.28 km) |
| Upminster to Kallithea | 1,474.33 mi (2,372.71 km) |
| Upminster to Kalymnos | 1,646.24 mi (2,649.36 km) |
| Upminster to Kalyvia Thorikou | 1,488.28 mi (2,395.16 km) |
| Upminster to Kamatero | 1,469.23 mi (2,364.50 km) |
