| Central Islip to Kluczbork | 4,164.88 mi (6,702.73 km) |
| Central Islip to Knurow | 4,208.89 mi (6,773.55 km) |
| Central Islip to Kobylka | 4,229.16 mi (6,806.18 km) |
| Central Islip to Kokoszki | 4,063.58 mi (6,539.71 km) |
| Central Islip to Kolbuszowa | 4,324.62 mi (6,959.80 km) |
| Central Islip to Kolno | 4,217.76 mi (6,787.83 km) |
| Central Islip to Kolo | 4,139.52 mi (6,661.91 km) |
| Central Islip to Kolobrzeg | 3,964.22 mi (6,379.80 km) |
| Central Islip to Koluszki | 4,198.04 mi (6,756.10 km) |
| Central Islip to Komorniki | 4,065.35 mi (6,542.55 km) |
| Central Islip to Konin | 4,125.37 mi (6,639.14 km) |
| Central Islip to Konskie | 4,240.11 mi (6,823.80 km) |
| Central Islip to Konstancin-Jeziorna | 4,234.90 mi (6,815.42 km) |
| Central Islip to Konstantynow Lodzki | 4,180.72 mi (6,728.22 km) |
| Central Islip to Koronowo | 4,076.99 mi (6,561.28 km) |
