| Diest to Grevena | 1,088.73 mi (1,752.14 km) |
| Diest to Ialysos | 1,519.49 mi (2,445.39 km) |
| Diest to Ilion | 1,275.68 mi (2,053.02 km) |
| Diest to Ilioupoli | 1,282.75 mi (2,064.39 km) |
| Diest to Ioannina | 1,091.49 mi (1,756.58 km) |
| Diest to Irakleio | 1,471.27 mi (2,367.78 km) |
| Diest to Irakleio | 1,277.10 mi (2,055.30 km) |
| Diest to Kaisariani | 1,281.17 mi (2,061.84 km) |
| Diest to Kalamaria | 1,117.41 mi (1,798.29 km) |
| Diest to Kalamata | 1,277.16 mi (2,055.40 km) |
| Diest to Kallithea | 1,280.13 mi (2,060.17 km) |
| Diest to Kalymnos | 1,447.18 mi (2,329.01 km) |
| Diest to Kalyvia Thorikou | 1,293.86 mi (2,082.26 km) |
| Diest to Kamatero | 1,274.69 mi (2,051.42 km) |
| Diest to Karditsa | 1,143.39 mi (1,840.10 km) |
