| Port Huron to Krosno Odrzanskie | 4,243.47 mi (6,829.21 km) |
| Port Huron to Krotoszyn | 4,338.84 mi (6,982.68 km) |
| Port Huron to Kruszwica | 4,329.27 mi (6,967.29 km) |
| Port Huron to Krynica | 4,556.92 mi (7,333.65 km) |
| Port Huron to Krzeszowice | 4,479.74 mi (7,209.44 km) |
| Port Huron to Kudowa-Zdroj | 4,347.06 mi (6,995.92 km) |
| Port Huron to Kutno | 4,382.63 mi (7,053.17 km) |
| Port Huron to Kwidzyn | 4,306.48 mi (6,930.60 km) |
| Port Huron to Lancut | 4,572.72 mi (7,359.09 km) |
| Port Huron to Lapy | 4,467.60 mi (7,189.91 km) |
| Port Huron to Lask | 4,401.33 mi (7,083.25 km) |
| Port Huron to Laziska Gorne | 4,451.53 mi (7,164.05 km) |
| Port Huron to Lebork | 4,234.94 mi (6,815.48 km) |
| Port Huron to Leczna | 4,540.77 mi (7,307.66 km) |
| Port Huron to Leczyca | 4,384.56 mi (7,056.26 km) |
