| Olton to Entroncamento | 950.73 mi (1,530.05 km) |
| Olton to Ericeira | 999.58 mi (1,608.66 km) |
| Olton to Ermezinde | 837.38 mi (1,347.63 km) |
| Olton to Esmoriz | 855.77 mi (1,377.22 km) |
| Olton to Espinho | 852.42 mi (1,371.84 km) |
| Olton to Esposende | 821.14 mi (1,321.50 km) |
| Olton to Estarreja | 868.07 mi (1,397.02 km) |
| Olton to Estoril | 1,016.11 mi (1,635.27 km) |
| Olton to Estremoz | 978.63 mi (1,574.95 km) |
| Olton to Evora | 1,001.91 mi (1,612.41 km) |
| Olton to Fafe | 815.54 mi (1,312.48 km) |
| Olton to Falagueira | 1,009.60 mi (1,624.80 km) |
| Olton to Famalicao | 823.82 mi (1,325.82 km) |
| Olton to Fanzeres | 840.35 mi (1,352.41 km) |
| Olton to Faro | 1,106.20 mi (1,780.25 km) |
