| Boulder to Glyka Nera | 6,158.02 mi (9,910.37 km) |
| Boulder to Grevena | 5,964.28 mi (9,598.58 km) |
| Boulder to Ialysos | 6,383.25 mi (10,272.85 km) |
| Boulder to Ilion | 6,150.90 mi (9,898.92 km) |
| Boulder to Ilioupoli | 6,158.08 mi (9,910.47 km) |
| Boulder to Ioannina | 5,968.33 mi (9,605.10 km) |
| Boulder to Irakleio | 6,348.05 mi (10,216.19 km) |
| Boulder to Irakleio | 6,152.14 mi (9,900.91 km) |
| Boulder to Kaisariani | 6,156.40 mi (9,907.77 km) |
| Boulder to Kalamaria | 5,985.82 mi (9,633.25 km) |
| Boulder to Kalamata | 6,153.39 mi (9,902.93 km) |
| Boulder to Kallithea | 6,155.53 mi (9,906.36 km) |
| Boulder to Kalymnos | 6,314.22 mi (10,161.76 km) |
| Boulder to Kalyvia Thorikou | 6,169.04 mi (9,928.11 km) |
| Boulder to Kamatero | 6,149.83 mi (9,897.19 km) |
