| Langenfeld to Grevena | 1,031.11 mi (1,659.41 km) |
| Langenfeld to Ialysos | 1,456.47 mi (2,343.96 km) |
| Langenfeld to Ilion | 1,217.71 mi (1,959.71 km) |
| Langenfeld to Ilioupoli | 1,224.88 mi (1,971.25 km) |
| Langenfeld to Ioannina | 1,036.30 mi (1,667.76 km) |
| Langenfeld to Irakleio | 1,415.46 mi (2,277.97 km) |
| Langenfeld to Irakleio | 1,218.96 mi (1,961.72 km) |
| Langenfeld to Kaisariani | 1,223.21 mi (1,968.56 km) |
| Langenfeld to Kalamaria | 1,055.28 mi (1,698.31 km) |
| Langenfeld to Kalamata | 1,224.78 mi (1,971.09 km) |
| Langenfeld to Kallithea | 1,222.33 mi (1,967.15 km) |
| Langenfeld to Kalymnos | 1,385.07 mi (2,229.05 km) |
| Langenfeld to Kalyvia Thorikou | 1,235.85 mi (1,988.90 km) |
| Langenfeld to Kamatero | 1,216.64 mi (1,957.99 km) |
| Langenfeld to Karditsa | 1,086.37 mi (1,748.34 km) |
