| Ponca City to Enterprise (Nevada) | 1,010.06 mi (1,625.54 km) |
| Ponca City to Enumclaw (Washington) | 1,461.59 mi (2,352.21 km) |
| Ponca City to Ephrata (Pennsylvania) | 1,152.24 mi (1,854.36 km) |
| Ponca City to Erie (Colorado) | 488.56 mi (786.27 km) |
| Ponca City to Erie (Pennsylvania) | 978.45 mi (1,574.67 km) |
| Ponca City to Erlanger (Kentucky) | 698.27 mi (1,123.76 km) |
| Ponca City to Escanaba (Michigan) | 809.57 mi (1,302.87 km) |
| Ponca City to Escondido (California) | 1,157.70 mi (1,863.14 km) |
| Ponca City to Española (New Mexico) | 503.07 mi (809.61 km) |
| Ponca City to Essex (Maryland) | 1,134.14 mi (1,825.21 km) |
| Ponca City to Essex Junction (Vermont) | 1,359.84 mi (2,188.45 km) |
| Ponca City to Estelle (Louisiana) | 622.30 mi (1,001.49 km) |
| Ponca City to Estero (Florida) | 1,143.81 mi (1,840.79 km) |
| Ponca City to Euclid (Ohio) | 896.71 mi (1,443.12 km) |
| Ponca City to Eufaula (Alabama) | 756.25 mi (1,217.07 km) |
