| Willich to Grevena | 1,050.79 mi (1,691.09 km) |
| Willich to Ialysos | 1,476.46 mi (2,376.13 km) |
| Willich to Ilion | 1,237.43 mi (1,991.45 km) |
| Willich to Ilioupoli | 1,244.59 mi (2,002.98 km) |
| Willich to Ioannina | 1,055.80 mi (1,699.15 km) |
| Willich to Irakleio | 1,435.05 mi (2,309.49 km) |
| Willich to Irakleio | 1,238.69 mi (1,993.48 km) |
| Willich to Kaisariani | 1,242.93 mi (2,000.30 km) |
| Willich to Kalamaria | 1,075.22 mi (1,730.41 km) |
| Willich to Kalamata | 1,244.07 mi (2,002.14 km) |
| Willich to Kallithea | 1,242.04 mi (1,998.87 km) |
| Willich to Kalymnos | 1,405.03 mi (2,261.17 km) |
| Willich to Kalyvia Thorikou | 1,255.57 mi (2,020.65 km) |
| Willich to Kamatero | 1,236.37 mi (1,989.74 km) |
| Willich to Karditsa | 1,106.01 mi (1,779.96 km) |
