| Estoril to Glyka Nera | 1,792.26 mi (2,884.36 km) |
| Estoril to Grevena | 1,640.47 mi (2,640.08 km) |
| Estoril to Ialysos | 2,048.26 mi (3,296.35 km) |
| Estoril to Ilion | 1,783.76 mi (2,870.69 km) |
| Estoril to Ilioupoli | 1,787.86 mi (2,877.29 km) |
| Estoril to Ioannina | 1,613.77 mi (2,597.10 km) |
| Estoril to Irakleio | 1,907.75 mi (3,070.23 km) |
| Estoril to Irakleio | 1,787.08 mi (2,876.02 km) |
| Estoril to Kaisariani | 1,787.80 mi (2,877.19 km) |
| Estoril to Kalamaria | 1,716.26 mi (2,762.06 km) |
| Estoril to Kalamata | 1,713.98 mi (2,758.38 km) |
| Estoril to Kallithea | 1,784.96 mi (2,872.61 km) |
| Estoril to Kalymnos | 1,975.55 mi (3,179.34 km) |
| Estoril to Kalyvia Thorikou | 1,798.21 mi (2,893.94 km) |
| Estoril to Kamatero | 1,784.03 mi (2,871.11 km) |
