| Estoril to Isny im Allgau | 1,154.41 mi (1,857.84 km) |
| Estoril to Isselburg | 1,185.54 mi (1,907.94 km) |
| Estoril to Issum | 1,170.23 mi (1,883.31 km) |
| Estoril to Itzehoe | 1,377.05 mi (2,216.15 km) |
| Estoril to Jena | 1,322.59 mi (2,128.50 km) |
| Estoril to Jever | 1,312.40 mi (2,112.11 km) |
| Estoril to Jork | 1,364.22 mi (2,195.49 km) |
| Estoril to Juchen | 1,152.30 mi (1,854.45 km) |
| Estoril to Julich | 1,139.42 mi (1,833.71 km) |
| Estoril to Juterbog | 1,415.67 mi (2,278.31 km) |
| Estoril to Kaarst | 1,161.34 mi (1,869.00 km) |
| Estoril to Kaiserslautern | 1,125.23 mi (1,810.88 km) |
| Estoril to Kalkar | 1,175.66 mi (1,892.04 km) |
| Estoril to Kall | 1,128.84 mi (1,816.69 km) |
| Estoril to Kaltenkirchen | 1,386.66 mi (2,231.62 km) |
