| Leiria to Isny im Allgau | 1,084.88 mi (1,745.95 km) |
| Leiria to Isselburg | 1,108.12 mi (1,783.34 km) |
| Leiria to Issum | 1,093.01 mi (1,759.03 km) |
| Leiria to Itzehoe | 1,299.37 mi (2,091.14 km) |
| Leiria to Jena | 1,248.50 mi (2,009.26 km) |
| Leiria to Jever | 1,234.43 mi (1,986.63 km) |
| Leiria to Jork | 1,286.83 mi (2,070.95 km) |
| Leiria to Juchen | 1,075.47 mi (1,730.80 km) |
| Leiria to Julich | 1,062.68 mi (1,710.21 km) |
| Leiria to Juterbog | 1,340.96 mi (2,158.07 km) |
| Leiria to Kaarst | 1,084.47 mi (1,745.28 km) |
| Leiria to Kaiserslautern | 1,051.03 mi (1,691.47 km) |
| Leiria to Kalkar | 1,098.23 mi (1,767.44 km) |
| Leiria to Kall | 1,052.56 mi (1,693.92 km) |
| Leiria to Kaltenkirchen | 1,309.17 mi (2,106.91 km) |
