| Grande-Synthe to Impruneta | 656.27 mi (1,056.17 km) |
| Grande-Synthe to Induno Olona | 465.39 mi (748.97 km) |
| Grande-Synthe to Inverigo | 483.12 mi (777.50 km) |
| Grande-Synthe to Inveruno | 484.31 mi (779.42 km) |
| Grande-Synthe to Inzago | 501.95 mi (807.81 km) |
| Grande-Synthe to Iseo | 512.93 mi (825.48 km) |
| Grande-Synthe to Isernia | 862.36 mi (1,387.83 km) |
| Grande-Synthe to Isola Capo Rizzuto | 1,098.71 mi (1,768.19 km) |
| Grande-Synthe to Isola del Liri | 837.65 mi (1,348.06 km) |
| Grande-Synthe to Isola della Scala | 563.84 mi (907.42 km) |
| Grande-Synthe to Isola Vicentina | 560.34 mi (901.78 km) |
| Grande-Synthe to Ispica | 1,162.61 mi (1,871.05 km) |
| Grande-Synthe to Istrana | 580.58 mi (934.35 km) |
| Grande-Synthe to Itri | 858.81 mi (1,382.12 km) |
| Grande-Synthe to Ittiri | 779.52 mi (1,254.51 km) |
