| Ponca City to Entroncamento | 4,610.06 mi (7,419.18 km) |
| Ponca City to Ericeira | 4,582.58 mi (7,374.96 km) |
| Ponca City to Ermezinde | 4,547.76 mi (7,318.91 km) |
| Ponca City to Esmoriz | 4,552.90 mi (7,327.19 km) |
| Ponca City to Espinho | 4,550.49 mi (7,323.30 km) |
| Ponca City to Esposende | 4,526.71 mi (7,285.04 km) |
| Ponca City to Estarreja | 4,562.46 mi (7,342.57 km) |
| Ponca City to Estoril | 4,592.17 mi (7,390.38 km) |
| Ponca City to Estremoz | 4,672.28 mi (7,519.30 km) |
| Ponca City to Evora | 4,667.23 mi (7,511.18 km) |
| Ponca City to Fafe | 4,557.51 mi (7,334.60 km) |
| Ponca City to Falagueira | 4,598.43 mi (7,400.46 km) |
| Ponca City to Famalicao | 4,542.69 mi (7,310.75 km) |
| Ponca City to Fanzeres | 4,550.18 mi (7,322.81 km) |
| Ponca City to Faro | 4,719.36 mi (7,595.08 km) |
