| Seclin to Impruneta | 611.10 mi (983.48 km) |
| Seclin to Induno Olona | 420.24 mi (676.31 km) |
| Seclin to Inverigo | 437.94 mi (704.79 km) |
| Seclin to Inveruno | 439.24 mi (706.89 km) |
| Seclin to Inzago | 456.77 mi (735.09 km) |
| Seclin to Iseo | 467.76 mi (752.79 km) |
| Seclin to Isernia | 817.17 mi (1,315.10 km) |
| Seclin to Isola Capo Rizzuto | 1,053.53 mi (1,695.49 km) |
| Seclin to Isola del Liri | 792.46 mi (1,275.34 km) |
| Seclin to Isola della Scala | 518.76 mi (834.86 km) |
| Seclin to Isola Vicentina | 515.52 mi (829.65 km) |
| Seclin to Ispica | 1,117.85 mi (1,799.01 km) |
| Seclin to Istrana | 536.06 mi (862.70 km) |
| Seclin to Itri | 813.65 mi (1,309.44 km) |
| Seclin to Ittiri | 737.17 mi (1,186.35 km) |
