| Opwijk to Grevena | 1,118.36 mi (1,799.83 km) |
| Opwijk to Ialysos | 1,550.93 mi (2,495.98 km) |
| Opwijk to Ilion | 1,305.31 mi (2,100.70 km) |
| Opwijk to Ilioupoli | 1,312.34 mi (2,112.00 km) |
| Opwijk to Ioannina | 1,120.19 mi (1,802.77 km) |
| Opwijk to Irakleio | 1,499.95 mi (2,413.94 km) |
| Opwijk to Irakleio | 1,306.80 mi (2,103.09 km) |
| Opwijk to Kaisariani | 1,310.79 mi (2,109.51 km) |
| Opwijk to Kalamaria | 1,148.70 mi (1,848.65 km) |
| Opwijk to Kalamata | 1,304.63 mi (2,099.60 km) |
| Opwijk to Kallithea | 1,309.69 mi (2,107.75 km) |
| Opwijk to Kalymnos | 1,478.30 mi (2,379.09 km) |
| Opwijk to Kalyvia Thorikou | 1,323.49 mi (2,129.95 km) |
| Opwijk to Kamatero | 1,304.35 mi (2,099.15 km) |
| Opwijk to Karditsa | 1,172.74 mi (1,887.35 km) |
