| Duncan to Entroncamento | 4,733.09 mi (7,617.18 km) |
| Duncan to Ericeira | 4,704.11 mi (7,570.54 km) |
| Duncan to Ermezinde | 4,673.60 mi (7,521.43 km) |
| Duncan to Esmoriz | 4,678.27 mi (7,528.94 km) |
| Duncan to Espinho | 4,675.93 mi (7,525.18 km) |
| Duncan to Esposende | 4,652.91 mi (7,488.14 km) |
| Duncan to Estarreja | 4,687.53 mi (7,543.86 km) |
| Duncan to Estoril | 4,713.27 mi (7,585.28 km) |
| Duncan to Estremoz | 4,794.92 mi (7,716.67 km) |
| Duncan to Evora | 4,789.18 mi (7,707.43 km) |
| Duncan to Fafe | 4,683.96 mi (7,538.11 km) |
| Duncan to Falagueira | 4,719.75 mi (7,595.71 km) |
| Duncan to Famalicao | 4,668.87 mi (7,513.82 km) |
| Duncan to Fanzeres | 4,675.95 mi (7,525.22 km) |
| Duncan to Faro | 4,838.69 mi (7,787.12 km) |
