| Onex to Karditsa | 927.73 mi (1,493.04 km) |
| Onex to Kastoria | 854.76 mi (1,375.61 km) |
| Onex to Katerini | 918.94 mi (1,478.90 km) |
| Onex to Keratsini | 1,059.12 mi (1,704.49 km) |
| Onex to Kerkyra | 831.68 mi (1,338.46 km) |
| Onex to Kiato | 1,020.25 mi (1,641.94 km) |
| Onex to Kifisia | 1,062.81 mi (1,710.43 km) |
| Onex to Kilkis | 910.54 mi (1,465.37 km) |
| Onex to Komotini | 1,024.56 mi (1,648.86 km) |
| Onex to Korinthos | 1,030.90 mi (1,659.07 km) |
| Onex to Koropi | 1,072.99 mi (1,726.80 km) |
| Onex to Korydallos | 1,059.85 mi (1,705.66 km) |
| Onex to Kos | 1,263.47 mi (2,033.35 km) |
| Onex to Kozani | 885.74 mi (1,425.45 km) |
| Onex to Lagos | 1,007.36 mi (1,621.19 km) |
