| Serris to Kalisz | 702.52 mi (1,130.60 km) |
| Serris to Kamien Pomorski | 624.53 mi (1,005.08 km) |
| Serris to Kamienna Gora | 604.47 mi (972.80 km) |
| Serris to Karczew | 839.46 mi (1,350.97 km) |
| Serris to Kartuzy | 759.84 mi (1,222.85 km) |
| Serris to Katowice | 732.40 mi (1,178.68 km) |
| Serris to Kedzierzyn-Kozle | 696.58 mi (1,121.03 km) |
| Serris to Kepno | 693.12 mi (1,115.47 km) |
| Serris to Ketrzyn | 874.71 mi (1,407.71 km) |
| Serris to Kety | 741.12 mi (1,192.71 km) |
| Serris to Kielce | 804.92 mi (1,295.39 km) |
| Serris to Kielczow | 657.23 mi (1,057.71 km) |
| Serris to Klobuck | 731.22 mi (1,176.78 km) |
| Serris to Klodzko | 628.79 mi (1,011.95 km) |
| Serris to Kluczbork | 700.61 mi (1,127.53 km) |
