| Ostwald to Grevena | 893.01 mi (1,437.16 km) |
| Ostwald to Ialysos | 1,329.55 mi (2,139.71 km) |
| Ostwald to Ilion | 1,079.74 mi (1,737.67 km) |
| Ostwald to Ilioupoli | 1,086.67 mi (1,748.83 km) |
| Ostwald to Ioannina | 893.19 mi (1,437.46 km) |
| Ostwald to Irakleio | 1,272.67 mi (2,048.16 km) |
| Ostwald to Irakleio | 1,081.35 mi (1,740.26 km) |
| Ostwald to Kaisariani | 1,085.19 mi (1,746.45 km) |
| Ostwald to Kalamaria | 927.57 mi (1,492.78 km) |
| Ostwald to Kalamata | 1,076.07 mi (1,731.77 km) |
| Ostwald to Kallithea | 1,083.98 mi (1,744.50 km) |
| Ostwald to Kalymnos | 1,256.07 mi (2,021.45 km) |
| Ostwald to Kalyvia Thorikou | 1,097.90 mi (1,766.90 km) |
| Ostwald to Kamatero | 1,078.84 mi (1,736.22 km) |
| Ostwald to Karditsa | 946.79 mi (1,523.71 km) |
