| Irthlingborough to Entroncamento | 964.03 mi (1,551.46 km) |
| Irthlingborough to Ericeira | 1,014.70 mi (1,633.00 km) |
| Irthlingborough to Ermezinde | 853.18 mi (1,373.06 km) |
| Irthlingborough to Esmoriz | 871.40 mi (1,402.39 km) |
| Irthlingborough to Espinho | 868.17 mi (1,397.18 km) |
| Irthlingborough to Esposende | 838.07 mi (1,348.75 km) |
| Irthlingborough to Estarreja | 883.25 mi (1,421.45 km) |
| Irthlingborough to Estoril | 1,030.89 mi (1,659.06 km) |
| Irthlingborough to Estremoz | 988.95 mi (1,591.56 km) |
| Irthlingborough to Evora | 1,012.78 mi (1,629.91 km) |
| Irthlingborough to Fafe | 830.60 mi (1,336.71 km) |
| Irthlingborough to Falagueira | 1,024.02 mi (1,648.01 km) |
| Irthlingborough to Famalicao | 839.83 mi (1,351.57 km) |
| Irthlingborough to Fanzeres | 856.03 mi (1,377.65 km) |
| Irthlingborough to Faro | 1,115.77 mi (1,795.66 km) |
