| Horley to Glyka Nera | 1,480.71 mi (2,382.98 km) |
| Horley to Grevena | 1,286.65 mi (2,070.66 km) |
| Horley to Ialysos | 1,724.41 mi (2,775.17 km) |
| Horley to Ilion | 1,473.02 mi (2,370.60 km) |
| Horley to Ilioupoli | 1,479.87 mi (2,381.62 km) |
| Horley to Ioannina | 1,285.25 mi (2,068.41 km) |
| Horley to Irakleio | 1,663.75 mi (2,677.55 km) |
| Horley to Irakleio | 1,474.73 mi (2,373.35 km) |
| Horley to Kaisariani | 1,478.45 mi (2,379.34 km) |
| Horley to Kalamaria | 1,322.49 mi (2,128.34 km) |
| Horley to Kalamata | 1,464.55 mi (2,356.97 km) |
| Horley to Kallithea | 1,477.15 mi (2,377.24 km) |
| Horley to Kalymnos | 1,650.80 mi (2,656.71 km) |
| Horley to Kalyvia Thorikou | 1,491.16 mi (2,399.79 km) |
| Horley to Kamatero | 1,472.17 mi (2,369.23 km) |
