| Rhondda to Krosno Odrzanskie | 789.16 mi (1,270.04 km) |
| Rhondda to Krotoszyn | 890.85 mi (1,433.68 km) |
| Rhondda to Kruszwica | 921.41 mi (1,482.87 km) |
| Rhondda to Krynica | 1,076.46 mi (1,732.39 km) |
| Rhondda to Krzeszowice | 1,005.97 mi (1,618.95 km) |
| Rhondda to Kudowa-Zdroj | 855.47 mi (1,376.75 km) |
| Rhondda to Kutno | 967.76 mi (1,557.46 km) |
| Rhondda to Kwidzyn | 943.57 mi (1,518.54 km) |
| Rhondda to Lancut | 1,118.44 mi (1,799.96 km) |
| Rhondda to Lapy | 1,109.01 mi (1,784.78 km) |
| Rhondda to Lask | 963.90 mi (1,551.24 km) |
| Rhondda to Laziska Gorne | 972.12 mi (1,564.48 km) |
| Rhondda to Lebork | 897.86 mi (1,444.96 km) |
| Rhondda to Leczna | 1,126.36 mi (1,812.71 km) |
| Rhondda to Leczyca | 962.25 mi (1,548.59 km) |
