| Douai to Grevena | 1,135.83 mi (1,827.95 km) |
| Douai to Ialysos | 1,572.57 mi (2,530.80 km) |
| Douai to Ilion | 1,322.45 mi (2,128.27 km) |
| Douai to Ilioupoli | 1,329.35 mi (2,139.38 km) |
| Douai to Ioannina | 1,135.34 mi (1,827.15 km) |
| Douai to Irakleio | 1,514.43 mi (2,437.24 km) |
| Douai to Irakleio | 1,324.10 mi (2,130.93 km) |
| Douai to Kaisariani | 1,327.89 mi (2,137.04 km) |
| Douai to Kalamaria | 1,170.51 mi (1,883.75 km) |
| Douai to Kalamata | 1,316.45 mi (2,118.62 km) |
| Douai to Kallithea | 1,326.65 mi (2,135.03 km) |
| Douai to Kalymnos | 1,499.14 mi (2,412.62 km) |
| Douai to Kalyvia Thorikou | 1,340.61 mi (2,157.50 km) |
| Douai to Kamatero | 1,321.57 mi (2,126.86 km) |
| Douai to Karditsa | 1,189.42 mi (1,914.18 km) |
