| Gaithersburg to Entroncamento | 3,579.85 mi (5,761.21 km) |
| Gaithersburg to Ericeira | 3,546.73 mi (5,707.90 km) |
| Gaithersburg to Ermezinde | 3,529.64 mi (5,680.40 km) |
| Gaithersburg to Esmoriz | 3,532.66 mi (5,685.27 km) |
| Gaithersburg to Espinho | 3,530.61 mi (5,681.97 km) |
| Gaithersburg to Esposende | 3,510.34 mi (5,649.35 km) |
| Gaithersburg to Estarreja | 3,540.90 mi (5,698.52 km) |
| Gaithersburg to Estoril | 3,554.72 mi (5,720.77 km) |
| Gaithersburg to Estremoz | 3,640.27 mi (5,858.46 km) |
| Gaithersburg to Evora | 3,632.61 mi (5,846.12 km) |
| Gaithersburg to Fafe | 3,542.13 mi (5,700.51 km) |
| Gaithersburg to Falagueira | 3,561.75 mi (5,732.08 km) |
| Gaithersburg to Famalicao | 3,526.14 mi (5,674.77 km) |
| Gaithersburg to Fanzeres | 3,531.74 mi (5,683.78 km) |
| Gaithersburg to Faro | 3,675.30 mi (5,914.82 km) |
