| Greenford to Glyka Nera | 1,499.26 mi (2,412.83 km) |
| Greenford to Grevena | 1,305.07 mi (2,100.30 km) |
| Greenford to Ialysos | 1,741.86 mi (2,803.25 km) |
| Greenford to Ilion | 1,491.62 mi (2,400.52 km) |
| Greenford to Ilioupoli | 1,498.50 mi (2,411.61 km) |
| Greenford to Ioannina | 1,304.25 mi (2,099.00 km) |
| Greenford to Irakleio | 1,683.10 mi (2,708.69 km) |
| Greenford to Irakleio | 1,493.28 mi (2,403.21 km) |
| Greenford to Kaisariani | 1,497.06 mi (2,409.28 km) |
| Greenford to Kalamaria | 1,339.76 mi (2,156.13 km) |
| Greenford to Kalamata | 1,484.46 mi (2,389.01 km) |
| Greenford to Kallithea | 1,495.79 mi (2,407.24 km) |
| Greenford to Kalymnos | 1,668.46 mi (2,685.13 km) |
| Greenford to Kalyvia Thorikou | 1,509.77 mi (2,429.74 km) |
| Greenford to Kamatero | 1,490.74 mi (2,399.12 km) |
