| Heerlen to Glyka Nera | 1,246.72 mi (2,006.39 km) |
| Heerlen to Grevena | 1,052.54 mi (1,693.89 km) |
| Heerlen to Ialysos | 1,481.70 mi (2,384.57 km) |
| Heerlen to Ilion | 1,239.43 mi (1,994.67 km) |
| Heerlen to Ilioupoli | 1,246.53 mi (2,006.10 km) |
| Heerlen to Ioannina | 1,056.10 mi (1,699.63 km) |
| Heerlen to Irakleio | 1,435.78 mi (2,310.67 km) |
| Heerlen to Irakleio | 1,240.80 mi (1,996.87 km) |
| Heerlen to Kaisariani | 1,244.92 mi (2,003.51 km) |
| Heerlen to Kalamaria | 1,079.81 mi (1,737.78 km) |
| Heerlen to Kalamata | 1,242.81 mi (2,000.10 km) |
| Heerlen to Kallithea | 1,243.94 mi (2,001.92 km) |
| Heerlen to Kalymnos | 1,409.66 mi (2,268.62 km) |
| Heerlen to Kalyvia Thorikou | 1,257.60 mi (2,023.91 km) |
| Heerlen to Kamatero | 1,238.41 mi (1,993.03 km) |
