| South Portland to Entroncamento | 3,135.20 mi (5,045.62 km) |
| South Portland to Ericeira | 3,105.11 mi (4,997.20 km) |
| South Portland to Ermezinde | 3,079.19 mi (4,955.48 km) |
| South Portland to Esmoriz | 3,083.15 mi (4,961.84 km) |
| South Portland to Espinho | 3,080.93 mi (4,958.28 km) |
| South Portland to Esposende | 3,059.12 mi (4,923.17 km) |
| South Portland to Estarreja | 3,091.99 mi (4,976.08 km) |
| South Portland to Estoril | 3,114.04 mi (5,011.56 km) |
| South Portland to Estremoz | 3,196.66 mi (5,144.52 km) |
| South Portland to Evora | 3,190.41 mi (5,134.47 km) |
| South Portland to Fafe | 3,090.55 mi (4,973.75 km) |
| South Portland to Falagueira | 3,120.63 mi (5,022.17 km) |
| South Portland to Famalicao | 3,075.01 mi (4,948.76 km) |
| South Portland to Fanzeres | 3,081.43 mi (4,959.09 km) |
| South Portland to Faro | 3,238.85 mi (5,212.43 km) |
