| Siegen to Grevena | 986.19 mi (1,587.12 km) |
| Siegen to Ialysos | 1,409.64 mi (2,268.59 km) |
| Siegen to Ilion | 1,172.55 mi (1,887.03 km) |
| Siegen to Ilioupoli | 1,179.75 mi (1,898.62 km) |
| Siegen to Ioannina | 992.25 mi (1,596.87 km) |
| Siegen to Irakleio | 1,370.95 mi (2,206.34 km) |
| Siegen to Irakleio | 1,173.74 mi (1,888.95 km) |
| Siegen to Kaisariani | 1,178.05 mi (1,895.88 km) |
| Siegen to Kalamaria | 1,008.87 mi (1,623.61 km) |
| Siegen to Kalamata | 1,181.62 mi (1,901.63 km) |
| Siegen to Kallithea | 1,177.22 mi (1,894.56 km) |
| Siegen to Kalymnos | 1,338.53 mi (2,154.15 km) |
| Siegen to Kalyvia Thorikou | 1,190.66 mi (1,916.18 km) |
| Siegen to Kamatero | 1,171.45 mi (1,885.27 km) |
| Siegen to Karditsa | 1,041.62 mi (1,676.32 km) |
