| Flensburg to Impruneta | 771.12 mi (1,241.00 km) |
| Flensburg to Induno Olona | 617.70 mi (994.10 km) |
| Flensburg to Inverigo | 625.27 mi (1,006.28 km) |
| Flensburg to Inveruno | 640.68 mi (1,031.08 km) |
| Flensburg to Inzago | 639.02 mi (1,028.40 km) |
| Flensburg to Iseo | 630.94 mi (1,015.40 km) |
| Flensburg to Isernia | 936.52 mi (1,507.18 km) |
| Flensburg to Isola Capo Rizzuto | 1,149.92 mi (1,850.61 km) |
| Flensburg to Isola del Liri | 924.68 mi (1,488.13 km) |
| Flensburg to Isola della Scala | 660.92 mi (1,063.65 km) |
| Flensburg to Isola Vicentina | 638.28 mi (1,027.20 km) |
| Flensburg to Ispica | 1,270.19 mi (2,044.17 km) |
| Flensburg to Istrana | 639.45 mi (1,029.10 km) |
| Flensburg to Itri | 951.26 mi (1,530.90 km) |
| Flensburg to Ittiri | 980.69 mi (1,578.27 km) |
