| Ponca City to Imola | 5,285.48 mi (8,506.17 km) |
| Ponca City to Impruneta | 5,296.34 mi (8,523.63 km) |
| Ponca City to Induno Olona | 5,111.07 mi (8,225.47 km) |
| Ponca City to Inverigo | 5,130.69 mi (8,257.05 km) |
| Ponca City to Inveruno | 5,125.48 mi (8,248.67 km) |
| Ponca City to Inzago | 5,149.29 mi (8,286.99 km) |
| Ponca City to Iseo | 5,165.98 mi (8,313.85 km) |
| Ponca City to Isernia | 5,505.02 mi (8,859.47 km) |
| Ponca City to Isola Capo Rizzuto | 5,738.84 mi (9,235.76 km) |
| Ponca City to Isola del Liri | 5,475.37 mi (8,811.76 km) |
| Ponca City to Isola della Scala | 5,219.12 mi (8,399.37 km) |
| Ponca City to Isola Vicentina | 5,220.30 mi (8,401.26 km) |
| Ponca City to Ispica | 5,750.55 mi (9,254.62 km) |
| Ponca City to Istrana | 5,242.72 mi (8,437.34 km) |
| Ponca City to Itri | 5,491.49 mi (8,837.70 km) |
