| Niagara Falls to Entroncamento | 3,560.97 mi (5,730.82 km) |
| Niagara Falls to Ericeira | 3,532.82 mi (5,685.53 km) |
| Niagara Falls to Ermezinde | 3,500.71 mi (5,633.84 km) |
| Niagara Falls to Esmoriz | 3,505.43 mi (5,641.44 km) |
| Niagara Falls to Espinho | 3,503.08 mi (5,637.66 km) |
| Niagara Falls to Esposende | 3,480.01 mi (5,600.53 km) |
| Niagara Falls to Estarreja | 3,514.74 mi (5,656.43 km) |
| Niagara Falls to Estoril | 3,542.27 mi (5,700.73 km) |
| Niagara Falls to Estremoz | 3,622.99 mi (5,830.63 km) |
| Niagara Falls to Evora | 3,617.63 mi (5,822.01 km) |
| Niagara Falls to Fafe | 3,511.06 mi (5,650.50 km) |
| Niagara Falls to Falagueira | 3,548.60 mi (5,710.92 km) |
| Niagara Falls to Famalicao | 3,495.96 mi (5,626.21 km) |
| Niagara Falls to Fanzeres | 3,503.07 mi (5,637.64 km) |
| Niagara Falls to Faro | 3,669.13 mi (5,904.90 km) |
