| Portimao to Isny im Allgau | 1,190.55 mi (1,916.00 km) |
| Portimao to Isselburg | 1,250.95 mi (2,013.21 km) |
| Portimao to Issum | 1,234.58 mi (1,986.86 km) |
| Portimao to Itzehoe | 1,443.37 mi (2,322.88 km) |
| Portimao to Jena | 1,372.52 mi (2,208.86 km) |
| Portimao to Jever | 1,380.87 mi (2,222.30 km) |
| Portimao to Jork | 1,428.81 mi (2,299.44 km) |
| Portimao to Juchen | 1,214.63 mi (1,954.75 km) |
| Portimao to Julich | 1,201.35 mi (1,933.39 km) |
| Portimao to Juterbog | 1,467.60 mi (2,361.88 km) |
| Portimao to Kaarst | 1,223.86 mi (1,969.61 km) |
| Portimao to Kaiserslautern | 1,176.48 mi (1,893.37 km) |
| Portimao to Kalkar | 1,241.14 mi (1,997.42 km) |
| Portimao to Kall | 1,188.62 mi (1,912.90 km) |
| Portimao to Kaltenkirchen | 1,451.80 mi (2,336.44 km) |
