| Serris to Kastoria | 1,070.93 mi (1,723.49 km) |
| Serris to Katerini | 1,132.52 mi (1,822.61 km) |
| Serris to Keratsini | 1,281.16 mi (2,061.83 km) |
| Serris to Kerkyra | 1,057.24 mi (1,701.46 km) |
| Serris to Kiato | 1,244.58 mi (2,002.95 km) |
| Serris to Kifisia | 1,283.77 mi (2,066.03 km) |
| Serris to Kilkis | 1,118.08 mi (1,799.37 km) |
| Serris to Komotini | 1,222.76 mi (1,967.84 km) |
| Serris to Korinthos | 1,255.02 mi (2,019.75 km) |
| Serris to Koropi | 1,294.58 mi (2,083.42 km) |
| Serris to Korydallos | 1,281.72 mi (2,062.73 km) |
| Serris to Kos | 1,480.07 mi (2,381.94 km) |
| Serris to Kozani | 1,101.50 mi (1,772.69 km) |
| Serris to Lagos | 1,207.08 mi (1,942.61 km) |
| Serris to Lamia | 1,190.41 mi (1,915.77 km) |
