| Geldern to Grevena | 1,069.55 mi (1,721.28 km) |
| Geldern to Ialysos | 1,494.39 mi (2,404.99 km) |
| Geldern to Ilion | 1,256.12 mi (2,021.53 km) |
| Geldern to Ilioupoli | 1,263.29 mi (2,033.07 km) |
| Geldern to Ioannina | 1,074.83 mi (1,729.77 km) |
| Geldern to Irakleio | 1,453.96 mi (2,339.92 km) |
| Geldern to Irakleio | 1,257.35 mi (2,023.52 km) |
| Geldern to Kaisariani | 1,261.62 mi (2,030.37 km) |
| Geldern to Kalamaria | 1,093.37 mi (1,759.60 km) |
| Geldern to Kalamata | 1,263.33 mi (2,033.13 km) |
| Geldern to Kallithea | 1,260.75 mi (2,028.98 km) |
| Geldern to Kalymnos | 1,423.11 mi (2,290.28 km) |
| Geldern to Kalyvia Thorikou | 1,274.25 mi (2,050.71 km) |
| Geldern to Kamatero | 1,255.04 mi (2,019.79 km) |
| Geldern to Karditsa | 1,124.83 mi (1,810.24 km) |
