| Douai to Impruneta | 600.60 mi (966.57 km) |
| Douai to Induno Olona | 409.68 mi (659.31 km) |
| Douai to Inverigo | 427.52 mi (688.03 km) |
| Douai to Inveruno | 428.48 mi (689.57 km) |
| Douai to Inzago | 446.37 mi (718.37 km) |
| Douai to Iseo | 457.79 mi (736.74 km) |
| Douai to Isernia | 807.00 mi (1,298.74 km) |
| Douai to Isola Capo Rizzuto | 1,043.45 mi (1,679.27 km) |
| Douai to Isola del Liri | 782.08 mi (1,258.63 km) |
| Douai to Isola della Scala | 509.03 mi (819.21 km) |
| Douai to Isola Vicentina | 506.31 mi (814.83 km) |
| Douai to Ispica | 1,106.69 mi (1,781.05 km) |
| Douai to Istrana | 527.24 mi (848.52 km) |
| Douai to Itri | 803.12 mi (1,292.50 km) |
| Douai to Ittiri | 725.06 mi (1,166.88 km) |
