| Harrow to Glyka Nera | 1,500.98 mi (2,415.60 km) |
| Harrow to Grevena | 1,306.76 mi (2,103.03 km) |
| Harrow to Ialysos | 1,743.38 mi (2,805.69 km) |
| Harrow to Ilion | 1,493.34 mi (2,403.30 km) |
| Harrow to Ilioupoli | 1,500.24 mi (2,414.40 km) |
| Harrow to Ioannina | 1,306.06 mi (2,101.90 km) |
| Harrow to Irakleio | 1,684.96 mi (2,711.69 km) |
| Harrow to Irakleio | 1,495.00 mi (2,405.97 km) |
| Harrow to Kaisariani | 1,498.79 mi (2,412.06 km) |
| Harrow to Kalamaria | 1,341.25 mi (2,158.53 km) |
| Harrow to Kalamata | 1,486.43 mi (2,392.18 km) |
| Harrow to Kallithea | 1,497.53 mi (2,410.04 km) |
| Harrow to Kalymnos | 1,670.01 mi (2,687.63 km) |
| Harrow to Kalyvia Thorikou | 1,511.50 mi (2,432.52 km) |
| Harrow to Kamatero | 1,492.47 mi (2,401.90 km) |
