| Ostrow Wielkopolski to Glyka Nera | 988.02 mi (1,590.07 km) |
| Ostrow Wielkopolski to Grevena | 817.43 mi (1,315.52 km) |
| Ostrow Wielkopolski to Ialysos | 1,168.30 mi (1,880.19 km) |
| Ostrow Wielkopolski to Ilion | 983.14 mi (1,582.21 km) |
| Ostrow Wielkopolski to Ilioupoli | 990.52 mi (1,594.08 km) |
| Ostrow Wielkopolski to Ioannina | 840.82 mi (1,353.17 km) |
| Ostrow Wielkopolski to Irakleio | 1,183.58 mi (1,904.79 km) |
| Ostrow Wielkopolski to Irakleio | 982.97 mi (1,581.94 km) |
| Ostrow Wielkopolski to Kaisariani | 988.30 mi (1,590.51 km) |
| Ostrow Wielkopolski to Kalamaria | 802.64 mi (1,291.73 km) |
| Ostrow Wielkopolski to Kalamata | 1,031.16 mi (1,659.50 km) |
| Ostrow Wielkopolski to Kallithea | 988.70 mi (1,591.16 km) |
| Ostrow Wielkopolski to Kalymnos | 1,107.59 mi (1,782.50 km) |
| Ostrow Wielkopolski to Kalyvia Thorikou | 999.56 mi (1,608.64 km) |
| Ostrow Wielkopolski to Kamatero | 981.55 mi (1,579.65 km) |
