| Madrid to Glyka Nera | 1,478.56 mi (2,379.51 km) |
| Madrid to Grevena | 1,320.95 mi (2,125.86 km) |
| Madrid to Ialysos | 1,736.78 mi (2,795.08 km) |
| Madrid to Ilion | 1,470.02 mi (2,365.77 km) |
| Madrid to Ilioupoli | 1,474.45 mi (2,372.91 km) |
| Madrid to Ioannina | 1,295.78 mi (2,085.36 km) |
| Madrid to Irakleio | 1,603.72 mi (2,580.94 km) |
| Madrid to Irakleio | 1,473.22 mi (2,370.92 km) |
| Madrid to Kaisariani | 1,474.25 mi (2,372.58 km) |
| Madrid to Kalamaria | 1,394.99 mi (2,245.03 km) |
| Madrid to Kalamata | 1,405.72 mi (2,262.28 km) |
| Madrid to Kallithea | 1,471.52 mi (2,368.19 km) |
| Madrid to Kalymnos | 1,663.07 mi (2,676.45 km) |
| Madrid to Kalyvia Thorikou | 1,485.06 mi (2,389.97 km) |
| Madrid to Kamatero | 1,470.18 mi (2,366.02 km) |
