Scroll through the results for cheap flights to Dusseldorf in Germany. To get the best deal, we'd advise booking in advance, particularly if you want to fly with a specific airline. Check your dates and see.
Flexible on dates? Conducting your search by month allows you to compare prices to Dusseldorf throughout the year. For example, prices will almost certainly be higher around September, as this is peak season in Dusseldorf. Accommodation prices will also be higher at this time of year. Flights to Dusseldorf are usually cheapest in April.
Look out for flights with Air Europa, as they often have good deals. Or broaden your search by looking at other airports in Germany.
Looking at a few different departure airports will give you even more choice. See what you can find. And remember, it's best to book your flights in advance wherever possible.