| Opera to Glyka Nera | 909.25 mi (1,463.30 km) |
| Opera to Grevena | 718.60 mi (1,156.48 km) |
| Opera to Ialysos | 1,162.40 mi (1,870.71 km) |
| Opera to Ilion | 901.16 mi (1,450.28 km) |
| Opera to Ilioupoli | 907.63 mi (1,460.68 km) |
| Opera to Ioannina | 711.09 mi (1,144.40 km) |
| Opera to Irakleio | 1,084.52 mi (1,745.36 km) |
| Opera to Irakleio | 903.27 mi (1,453.67 km) |
| Opera to Kaisariani | 906.45 mi (1,458.79 km) |
| Opera to Kalamaria | 767.95 mi (1,235.90 km) |
| Opera to Kalamata | 882.18 mi (1,419.74 km) |
| Opera to Kallithea | 904.79 mi (1,456.11 km) |
| Opera to Kalymnos | 1,087.15 mi (1,749.60 km) |
| Opera to Kalyvia Thorikou | 919.04 mi (1,479.05 km) |
| Opera to Kamatero | 900.53 mi (1,449.26 km) |
