| Belfast to Krosno Odrzanskie | 882.41 mi (1,420.10 km) |
| Belfast to Krotoszyn | 984.15 mi (1,583.84 km) |
| Belfast to Kruszwica | 997.50 mi (1,605.33 km) |
| Belfast to Krynica | 1,189.87 mi (1,914.91 km) |
| Belfast to Krzeszowice | 1,114.74 mi (1,794.00 km) |
| Belfast to Kudowa-Zdroj | 970.67 mi (1,562.14 km) |
| Belfast to Kutno | 1,048.57 mi (1,687.51 km) |
| Belfast to Kwidzyn | 1,002.11 mi (1,612.73 km) |
| Belfast to Lancut | 1,220.50 mi (1,964.21 km) |
| Belfast to Lapy | 1,172.99 mi (1,887.75 km) |
| Belfast to Lask | 1,054.49 mi (1,697.03 km) |
| Belfast to Laziska Gorne | 1,083.04 mi (1,742.99 km) |
| Belfast to Lebork | 943.91 mi (1,519.07 km) |
| Belfast to Leczna | 1,211.98 mi (1,950.50 km) |
| Belfast to Leczyca | 1,046.08 mi (1,683.50 km) |
