| Gladstone to Imola | 5,067.21 mi (8,154.89 km) |
| Gladstone to Impruneta | 5,078.41 mi (8,172.91 km) |
| Gladstone to Induno Olona | 4,892.83 mi (7,874.25 km) |
| Gladstone to Inverigo | 4,912.42 mi (7,905.77 km) |
| Gladstone to Inveruno | 4,907.36 mi (7,897.64 km) |
| Gladstone to Inzago | 4,931.04 mi (7,935.75 km) |
| Gladstone to Iseo | 4,947.58 mi (7,962.36 km) |
| Gladstone to Isernia | 5,287.19 mi (8,508.90 km) |
| Gladstone to Isola Capo Rizzuto | 5,521.28 mi (8,885.64 km) |
| Gladstone to Isola del Liri | 5,257.68 mi (8,461.42 km) |
| Gladstone to Isola della Scala | 5,000.68 mi (8,047.81 km) |
| Gladstone to Isola Vicentina | 5,001.66 mi (8,049.40 km) |
| Gladstone to Ispica | 5,534.74 mi (8,907.30 km) |
| Gladstone to Istrana | 5,023.96 mi (8,085.28 km) |
| Gladstone to Itri | 5,273.97 mi (8,487.64 km) |
