| Olton to Glyka Nera | 1,583.89 mi (2,549.02 km) |
| Olton to Grevena | 1,389.56 mi (2,236.29 km) |
| Olton to Ialysos | 1,824.84 mi (2,936.79 km) |
| Olton to Ilion | 1,576.31 mi (2,536.82 km) |
| Olton to Ilioupoli | 1,583.24 mi (2,547.97 km) |
| Olton to Ioannina | 1,389.52 mi (2,236.21 km) |
| Olton to Irakleio | 1,768.72 mi (2,846.47 km) |
| Olton to Irakleio | 1,577.92 mi (2,539.41 km) |
| Olton to Kaisariani | 1,581.76 mi (2,545.60 km) |
| Olton to Kalamaria | 1,422.59 mi (2,289.43 km) |
| Olton to Kalamata | 1,570.74 mi (2,527.86 km) |
| Olton to Kallithea | 1,580.55 mi (2,543.64 km) |
| Olton to Kalymnos | 1,751.77 mi (2,819.20 km) |
| Olton to Kalyvia Thorikou | 1,594.47 mi (2,566.05 km) |
| Olton to Kamatero | 1,575.41 mi (2,535.37 km) |
